Area Code 815 — Chicago, Rockford, Dekalb, Illinois
ActiveData last updated: June 25, 2026
Top Carriers
| Carrier | OCN | NXX Count |
|---|---|---|
| ILLINOIS BELL TEL CO | 9329 | 157 |
| FRONTIER NORTH, INC. - IL | 1015 | 76 |
| LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | 76 |
| FRONTIER NORTH, INC. - IL | 1036 | 57 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | 50 |
| AERO NORTH COMMUNICATIONS, INC. - IL | 443F | 43 |
| NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | 42 |
| T-MOBILE USA, INC. | 6529 | 38 |
| UNITED STATES CELLULAR - IL | 6265 | 23 |
| TELEPORT COMMUNICATIONS AMERICA, LLC - IL | 7136 | 22 |
Rate Centers
LA SALLE
SHERIDAN
OGLESBY
JOLIET
CRYSTAL LK
COAL CITY
WOODSTOCK
FULTON
ROCKFORD
STERLING
KANKAKEE
NEW LENOX
DE KALB
LOCKPORT
MILLEDGEVL
PLAINFIELD
FREEPORT
BYRON
GARDNER
PECATONICA
ROCK CUT
NORTHBROOK
MINOOKA
MT CARROLL
EARLVILLE
SEWARD
DURAND
GRANDRIDGE
NELSON
KEMPTON
STELLE
STREATOR
THOMSON
WATERMAN
GILMAN
ONARGA
DANFORTH
ROSCOE
MCHENRY
SAVANNA
FRANKFORT
GALENA
DIXON
HINCKLEY
VERONA
SO BERGEN
LA GRANGE
PRINCETON
SHANNON
UTICA
OTTAWA
MANHATTAN
CRESCENTCY
MORRIS
BELVIDERE
CHERRY VLY
WINNEBAGO
COLETA
GRANVILLE
LA MOILLE
FRANKLIGRV
SENECA
CORNELL
HARMON
SUBLETTE
GERMAN VLY
REDDICK
WINSLOW
LOSTANT
LENA
ELWOOD
DWIGHT
OHIO
WALNUT
CRESTON
SO BELOIT
BRAIDWOOD
KINSMAN
MONROE CTR
STEWARD
MORRISON
PONTIAC
HERSCHER
ST ANNE
MARTINTON
SHELDON
WATSEKA
BEAVERVL
PUTNAM
TAMPICO
TONICA
PEARL CITY
MANLIUS
CEDARPOINT
DEPUE
MAZON
DAKOTA
MOMENCE
TOLUCA
ASHTON
SHEFFIELD
CISSNAPARK
GRANT PARK
MANTENO
WOODLAND
PLATTVILLE
WILMINGTON
DONOVAN
APPLERIVER
LANARK
LELAND
COMPTON
SOMONAUK
MARSEILLES
MENDOTA
UNION
KIRKLAND
PROPHETSTN
THOMAS
E DUBUQUE
CHENOA
HARVARD
ROCHELLE
CEDARVILLE
CAMPUS
MARENGO
CAPRON
SANDWICH
POLO
SPRING GRV
RANSOM
HANOVER
OREGON
GARDENPRRI
MASSBACH
HENNEPIN
ROCKTON
PAW PAW
W BROOKLYN
SHIRLAND
CHATSWORTH
DOVER
STILMANVLY
TISKILWA
CULLOM
HEBRON
GRANDDTOUR
WONDERLAKE
FORREST
NEWARK
BUREAU
SPRING VLY
RICHMOND
STOCKLAND
CHADWICK
PIPER CITY
STRAWN
FAIRBURY
CLIFTON
CHEBANSE
ASHKUM
WYANET
SAUNEMIN
MT MORRIS
LISBON
SO SHARON
LEAF RIVER
SYCAMORE
GRAYMONT
WARREN
POPLAR GRV
LYNDON
GENOA
ORANGEVL
HARDING
FLANAGAN
LADD
ELIZABETH
SHABBONA
MALTA
MAPLE PARK
DAVIS
MCCONNELL
FORRESTON
STOCKTON
SCALESMOND
WENONA
LONG POINT
LEONORE
AMBOY
RUTLAND
MAGNOLIA
NEWMILFORD
MCNABB
MILFORD
EMINGTON
HOOPPOLE
CABERY
WELLINGTON
ODELL
Exchange Listings (NXX)
| NPA-NXX | Carrier | Rate Center | Type | LATA | Status |
|---|---|---|---|---|---|
| 815-200 | PAETEC ITEL, LLC | LA SALLE | VoIP | 358 | active |
| 815-201 | BANDWIDTH.COM CLEC, LLC - IL | SHERIDAN | VoIP | 358 | active |
| 815-202 | NEW CINGULAR WIRELESS PCS, LLC - IL | OGLESBY | Wireless | 358 | active |
| 815-203 | SPOK, INC. | JOLIET | Landline | 358 | active |
| 815-204 | SPOK, INC. | CRYSTAL LK | Landline | 358 | active |
| 815-205 | CENTURYLINK COMMUNICATIONS, LLC | COAL CITY | VoIP | 358 | active |
| 815-206 | ILLINOIS BELL TEL CO | WOODSTOCK | Landline | 358 | active |
| 815-207 | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | JOLIET | VoIP | 358 | active |
| 815-208 | MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL | FULTON | Landline | 364 | active |
| 815-209 | LEVEL 3 COMMUNICATIONS, LLC - IL | ROCKFORD | Landline | 360 | active |
| 815-210 | NEW CINGULAR WIRELESS PCS, LLC - IL | JOLIET | Wireless | 358 | active |
| 815-212 | T-MOBILE USA, INC. | JOLIET | Wireless | 358 | active |
| 815-213 | UNITED STATES CELLULAR - IL | STERLING | Wireless | 364 | active |
| 815-214 | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | KANKAKEE | Landline | 358 | active |
| 815-215 | FIRST COMMUNICATIONS, LLC | NEW LENOX | VoIP | 358 | active |
| 815-216 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | KANKAKEE | Wireless | 358 | active |
| 815-217 | DIGITAL NETWORK ACCESS COMMUNICATIONS, INC. - IL | DE KALB | Landline | 364 | active |
| 815-218 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | ROCKFORD | Wireless | 360 | active |
| 815-219 | METROPCS, INC. | CRYSTAL LK | Wireless | 358 | active |
| 815-220 | ILLINOIS BELL TEL CO | LA SALLE | Landline | 358 | active |
| 815-221 | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | LOCKPORT | Landline | 358 | active |
| 815-222 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | ROCKFORD | Wireless | 360 | active |
| 815-223 | ILLINOIS BELL TEL CO | LA SALLE | Landline | 358 | active |
| 815-224 | ILLINOIS BELL TEL CO | LA SALLE | Landline | 358 | active |
| 815-225 | CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL | MILLEDGEVL | Landline | 364 | active |
| 815-226 | ILLINOIS BELL TEL CO | ROCKFORD | Landline | 360 | active |
| 815-227 | ILLINOIS BELL TEL CO | ROCKFORD | Landline | 360 | active |
| 815-228 | NEW CINGULAR WIRELESS PCS, LLC - IL | OGLESBY | Wireless | 358 | active |
| 815-229 | ILLINOIS BELL TEL CO | ROCKFORD | Landline | 360 | active |
| 815-230 | LEVEL 3 COMMUNICATIONS, LLC - IL | PLAINFIELD | Landline | 358 | active |
| 815-231 | ILLINOIS BELL TEL CO | ROCKFORD | Landline | 360 | active |
| 815-232 | FRONTIER NORTH, INC. - IL | FREEPORT | Landline | 360 | active |
| 815-233 | FRONTIER NORTH, INC. - IL | FREEPORT | Landline | 360 | active |
| 815-234 | FRONTIER NORTH, INC. - IL | BYRON | Landline | 360 | active |
| 815-235 | FRONTIER NORTH, INC. - IL | FREEPORT | Landline | 360 | active |
| 815-236 | NEW CINGULAR WIRELESS PCS, LLC - IL | WOODSTOCK | Wireless | 358 | active |
| 815-237 | ILLINOIS BELL TEL CO | GARDNER | Landline | 358 | active |
| 815-238 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | FREEPORT | Wireless | 360 | active |
| 815-239 | FRONTIER NORTH, INC. - IL | PECATONICA | Landline | 360 | active |
| 815-240 | CHARTER IP ENABLED SERVICES, LLC | ROCK CUT | VoIP | 360 | active |
| 815-241 | AMERICAN MESSAGING SERVICES, LLC | NORTHBROOK | Landline | 358 | active |
| 815-242 | BANDWIDTH.COM CLEC, LLC - IL | MINOOKA | VoIP | 358 | active |
| 815-243 | UNITED STATES CELLULAR - IL | ROCKFORD | Wireless | 360 | active |
| 815-244 | BRIGHTSPEED OF ILLINOIS, LLC | MT CARROLL | Landline | 364 | active |
| 815-245 | NEW CINGULAR WIRELESS PCS, LLC - IL | WOODSTOCK | Wireless | 358 | active |
| 815-246 | FRONTIER NORTH, INC. - IL | EARLVILLE | Landline | 358 | active |
| 815-247 | FRONTIER NORTH, INC. - IL | SEWARD | Landline | 360 | active |
| 815-248 | FRONTIER NORTH, INC. - IL | DURAND | Landline | 360 | active |
| 815-249 | FRONTIER NORTH, INC. - IL | GRANDRIDGE | Landline | 366 | active |
| 815-250 | COMCAST IP PHONE, LLC | LA SALLE | VoIP | 358 | active |
| 815-251 | BRIGHTSPEED OF ILLINOIS, LLC | NELSON | Landline | 364 | active |
| 815-252 | NEW CINGULAR WIRELESS PCS, LLC - IL | OGLESBY | Wireless | 358 | active |
| 815-253 | FRONTIER COMMUNICATIONS OF ILLINOIS, INC. | KEMPTON | Landline | 366 | active |
| 815-254 | ILLINOIS BELL TEL CO | PLAINFIELD | Landline | 358 | active |
| 815-255 | PAETEC ITEL, LLC | MINOOKA | VoIP | 358 | active |
| 815-256 | STELLE TEL. CO. | STELLE | Landline | 358 | active |
| 815-257 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | STREATOR | Wireless | 366 | active |
| 815-258 | NEW CINGULAR WIRELESS PCS, LLC - IL | JOLIET | Wireless | 358 | active |
| 815-259 | BRIGHTSPEED OF ILLINOIS, LLC | THOMSON | Landline | 364 | active |
| 815-260 | T-MOBILE USA, INC. | JOLIET | Wireless | 358 | active |
| 815-261 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | CRYSTAL LK | Landline | 358 | active |
| 815-262 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | ROCKFORD | Wireless | 360 | active |
| 815-263 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | KANKAKEE | Wireless | 358 | active |
| 815-264 | FRONTIER NORTH, INC. - IL | WATERMAN | Landline | 364 | active |
| 815-265 | ILLINOIS BELL TEL CO | GILMAN | Landline | 358 | active |
| 815-266 | FRONTIER NORTH, INC. - IL | FREEPORT | Landline | 360 | active |
| 815-267 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | PLAINFIELD | Landline | 358 | active |
| 815-268 | ILLINOIS BELL TEL CO | ONARGA | Landline | 358 | active |
| 815-269 | FRONTIER COMMUNICATIONS OF THE CAROLINAS, INC - IL | DANFORTH | Landline | 358 | active |
| 815-270 | CHARTER IP ENABLED SERVICES, LLC | ROSCOE | VoIP | 360 | active |
| 815-271 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | MCHENRY | Landline | 358 | active |
| 815-272 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | JOLIET | Landline | 358 | active |
| 815-273 | BRIGHTSPEED OF ILLINOIS, LLC | SAVANNA | Landline | 364 | active |
| 815-274 | NEW CINGULAR WIRELESS PCS, LLC - IL | JOLIET | Wireless | 358 | active |
| 815-275 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | FREEPORT | Wireless | 360 | active |
| 815-276 | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | CRYSTAL LK | Landline | 358 | active |
| 815-277 | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | FRANKFORT | Landline | 358 | active |
| 815-278 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | KANKAKEE | Wireless | 358 | active |
| 815-279 | AMERICAN MESSAGING SERVICES, LLC | KANKAKEE | Landline | 358 | active |
| 815-280 | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | JOLIET | Landline | 358 | active |
| 815-281 | UNITED STATES CELLULAR - IL | GALENA | Wireless | 634 | active |
| 815-282 | ILLINOIS BELL TEL CO | ROCKFORD | Landline | 360 | active |
| 815-283 | MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL | WATERMAN | Landline | 364 | active |
| 815-284 | BRIGHTSPEED OF ILLINOIS, LLC | DIXON | Landline | 364 | active |
| 815-285 | BRIGHTSPEED OF ILLINOIS, LLC | DIXON | Landline | 364 | active |
| 815-286 | FRONTIER NORTH, INC. - IL | HINCKLEY | Landline | 364 | active |
| 815-287 | ILLINOIS BELL TEL CO | VERONA | Landline | 358 | active |
| 815-288 | BRIGHTSPEED OF ILLINOIS, LLC | DIXON | Landline | 364 | active |
| 815-289 | UNITED STATES CELLULAR - IL | ROCKFORD | Wireless | 360 | active |
| 815-290 | AT&T ENTERPRISES, LLC | MINOOKA | VoIP | 358 | active |
| 815-291 | UNITED STATES CELLULAR - IL | FREEPORT | Wireless | 360 | active |
| 815-292 | BERGEN TEL. CO. - IL | SO BERGEN | Landline | 356 | active |
| 815-293 | ILLINOIS BELL TEL CO | LOCKPORT | Landline | 358 | active |
| 815-294 | SPOK, INC. | LA GRANGE | Landline | 358 | active |
| 815-295 | T-MOBILE USA, INC. | KANKAKEE | Wireless | 358 | active |
| 815-296 | TELNYX LLC | ROCKFORD | VoIP | 360 | active |
| 815-297 | FRONTIER NORTH, INC. - IL | FREEPORT | Landline | 360 | active |
| 815-298 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | ROCKFORD | Wireless | 360 | active |
| 815-299 | UNITED STATES CELLULAR - IL | ROCKFORD | Wireless | 360 | active |
| 815-300 | ILLINOIS BELL TEL CO | NEW LENOX | Landline | 358 | active |
| 815-301 | LEVEL 3 COMMUNICATIONS, LLC - IL | CRYSTAL LK | Landline | 358 | active |
| 815-302 | METROPCS, INC. | JOLIET | Wireless | 358 | active |
| 815-303 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | PRINCETON | Wireless | 368 | active |
| 815-304 | LEVEL 3 COMMUNICATIONS, LLC - IL | KANKAKEE | Landline | 358 | active |
| 815-305 | LEVEL 3 COMMUNICATIONS, LLC - IL | GARDNER | Landline | 358 | active |
| 815-306 | LEVEL 3 COMMUNICATIONS, LLC - IL | LOCKPORT | Landline | 358 | active |
| 815-307 | LEVEL 3 COMMUNICATIONS, LLC - IL | MCHENRY | Landline | 358 | active |
| 815-308 | LEVEL 3 COMMUNICATIONS, LLC - IL | WOODSTOCK | Landline | 358 | active |
| 815-309 | AERO NORTH COMMUNICATIONS, INC. - IL | SHANNON | Landline | 364 | active |
| 815-310 | LEVEL 3 COMMUNICATIONS, LLC - IL | UTICA | Landline | 358 | active |
| 815-312 | ONVOY, LLC | ROCKFORD | Landline | 360 | active |
| 815-313 | LEVEL 3 COMMUNICATIONS, LLC - IL | OTTAWA | Landline | 358 | active |
| 815-314 | LEVEL 3 COMMUNICATIONS, LLC - IL | MANHATTAN | Landline | 358 | active |
| 815-315 | LEVEL 3 COMMUNICATIONS, LLC - IL | ROCKFORD | Landline | 360 | active |
| 815-316 | LEVEL 3 COMMUNICATIONS, LLC - IL | ROCKFORD | Landline | 360 | active |
| 815-317 | LEVEL 3 COMMUNICATIONS, LLC - IL | CRESCENTCY | Landline | 358 | active |
| 815-318 | LEVEL 3 COMMUNICATIONS, LLC - IL | MORRIS | Landline | 358 | active |
| 815-319 | UNITED STATES CELLULAR - IL | ROCKFORD | Wireless | 360 | active |
| 815-320 | PEERLESS NETWORK OF ILLINOIS, LLC - IL | NEW LENOX | Landline | 358 | active |
| 815-321 | ONVOY, LLC | WOODSTOCK | Landline | 358 | active |
| 815-322 | LEVEL 3 COMMUNICATIONS, LLC - IL | MCHENRY | Landline | 358 | active |
| 815-323 | LEVEL 3 COMMUNICATIONS, LLC - IL | BELVIDERE | Landline | 360 | active |
| 815-324 | MCC TELEPHONY LLC | OTTAWA | VoIP | 358 | active |
| 815-325 | NEW CINGULAR WIRELESS PCS, LLC - IL | JOLIET | Wireless | 358 | active |
| 815-326 | NEW CINGULAR WIRELESS PCS, LLC - IL | OGLESBY | Wireless | 358 | active |
| 815-327 | LEVEL 3 COMMUNICATIONS, LLC - IL | PLAINFIELD | Landline | 358 | active |
| 815-328 | LEVEL 3 COMMUNICATIONS, LLC - IL | LOCKPORT | Landline | 358 | active |
| 815-329 | AT&T ENTERPRISES, LLC | ROCKFORD | VoIP | 360 | active |
| 815-330 | FIRST COMMUNICATIONS, LLC | CRESCENTCY | VoIP | 358 | active |
| 815-331 | LEVEL 3 COMMUNICATIONS, LLC - IL | MCHENRY | Landline | 358 | active |
| 815-332 | FRONTIER NORTH, INC. - IL | CHERRY VLY | Landline | 360 | active |
| 815-333 | LEVEL 3 COMMUNICATIONS, LLC - IL | WOODSTOCK | Landline | 358 | active |
| 815-334 | ILLINOIS BELL TEL CO | WOODSTOCK | Landline | 358 | active |
| 815-335 | FRONTIER NORTH, INC. - IL | WINNEBAGO | Landline | 360 | active |
| 815-336 | CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL | COLETA | Landline | 364 | active |
| 815-337 | ILLINOIS BELL TEL CO | WOODSTOCK | Landline | 358 | active |
| 815-338 | ILLINOIS BELL TEL CO | WOODSTOCK | Landline | 358 | active |
| 815-339 | FRONTIER NORTH, INC. - IL | GRANVILLE | Landline | 358 | active |
| 815-340 | COMCAST IP PHONE, LLC | LA MOILLE | VoIP | 368 | active |
| 815-341 | NEW CINGULAR WIRELESS PCS, LLC - IL | JOLIET | Wireless | 358 | active |
| 815-342 | NEW CINGULAR WIRELESS PCS, LLC - IL | JOLIET | Wireless | 358 | active |
| 815-343 | NEW CINGULAR WIRELESS PCS, LLC - IL | OGLESBY | Wireless | 358 | active |
| 815-344 | ILLINOIS BELL TEL CO | MCHENRY | Landline | 358 | active |
| 815-345 | LEVEL 3 COMMUNICATIONS, LLC - IL | WOODSTOCK | Landline | 358 | active |
| 815-346 | LEVEL 3 COMMUNICATIONS, LLC - IL | GARDNER | Landline | 358 | active |
| 815-347 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | WOODSTOCK | Wireless | 358 | active |
| 815-348 | PAETEC ITEL, LLC | KANKAKEE | VoIP | 358 | active |
| 815-349 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | MCHENRY | Landline | 358 | active |
| 815-350 | AERO NORTH COMMUNICATIONS, INC. - IL | FRANKLIGRV | Landline | 364 | active |
| 815-351 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | KANKAKEE | Wireless | 358 | active |
| 815-352 | LEVEL 3 COMMUNICATIONS, LLC - IL | KANKAKEE | Landline | 358 | active |
| 815-353 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | WOODSTOCK | Wireless | 358 | active |
| 815-354 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | WOODSTOCK | Wireless | 358 | active |
| 815-355 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | WOODSTOCK | Wireless | 358 | active |
| 815-356 | ILLINOIS BELL TEL CO | CRYSTAL LK | Landline | 358 | active |
| 815-357 | ILLINOIS BELL TEL CO | SENECA | Landline | 358 | active |
| 815-358 | C-R TELEPHONE CO. | CORNELL | Landline | 366 | active |
| 815-359 | BRIGHTSPEED OF ILLINOIS, LLC | HARMON | Landline | 364 | active |
| 815-360 | AERO NORTH COMMUNICATIONS, INC. - IL | SUBLETTE | Landline | 364 | active |
| 815-361 | LEVEL 3 COMMUNICATIONS, LLC - IL | MANHATTAN | Landline | 358 | active |
| 815-362 | FRONTIER NORTH, INC. - IL | GERMAN VLY | Landline | 360 | active |
| 815-363 | ILLINOIS BELL TEL CO | MCHENRY | Landline | 358 | active |
| 815-364 | LEVEL 3 COMMUNICATIONS, LLC - IL | MORRIS | Landline | 358 | active |
| 815-365 | FRONTIER NORTH, INC. - IL | REDDICK | Landline | 366 | active |
| 815-366 | LEVEL 3 COMMUNICATIONS, LLC - IL | OTTAWA | Landline | 358 | active |
| 815-367 | FRONTIER NORTH, INC. - IL | WINSLOW | Landline | 360 | active |
| 815-368 | FRONTIER NORTH, INC. - IL | LOSTANT | Landline | 366 | active |
| 815-369 | FRONTIER NORTH, INC. - IL | LENA | Landline | 360 | active |
| 815-370 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | KANKAKEE | Wireless | 358 | active |
| 815-371 | LEVEL 3 COMMUNICATIONS, LLC - IL | UTICA | Landline | 358 | active |
| 815-372 | ILLINOIS BELL TEL CO | LOCKPORT | Landline | 358 | active |
| 815-373 | PAETEC ITEL, LLC | ELWOOD | VoIP | 358 | active |
| 815-374 | PAETEC ITEL, LLC | DWIGHT | VoIP | 358 | active |
| 815-375 | UNITED STATES CELLULAR - IL | DE KALB | Wireless | 364 | active |
| 815-376 | FRONTIER NORTH, INC. - IL | OHIO | Landline | 368 | active |
| 815-377 | LEVEL 3 COMMUNICATIONS, LLC - IL | CRESCENTCY | Landline | 358 | active |
| 815-378 | T-MOBILE USA, INC. | ROCKFORD | Wireless | 360 | active |
| 815-379 | FRONTIER NORTH, INC. - IL | WALNUT | Landline | 368 | active |
| 815-380 | LEVEL 3 COMMUNICATIONS, LLC - IL | STERLING | Landline | 364 | active |
| 815-381 | ILLINOIS BELL TEL CO | ROCKFORD | Landline | 360 | active |
| 815-382 | NEW CINGULAR WIRELESS PCS, LLC - IL | WOODSTOCK | Wireless | 358 | active |
| 815-383 | NEW CINGULAR WIRELESS PCS, LLC - IL | CRESCENTCY | Wireless | 358 | active |
| 815-384 | FRONTIER NORTH, INC. - IL | CRESTON | Landline | 364 | active |
| 815-385 | ILLINOIS BELL TEL CO | MCHENRY | Landline | 358 | active |
| 815-386 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | KANKAKEE | Wireless | 358 | active |
| 815-387 | ILLINOIS BELL TEL CO | ROCKFORD | Landline | 360 | active |
| 815-388 | METROPCS, INC. | MCHENRY | Wireless | 358 | active |
| 815-389 | ILLINOIS BELL TEL CO | SO BELOIT | Landline | 354 | active |
| 815-390 | COMCAST IP PHONE, LLC | BRAIDWOOD | VoIP | 358 | active |
| 815-391 | ILLINOIS BELL TEL CO | ROCKFORD | Landline | 360 | active |
| 815-392 | KINSMAN MUTUAL TEL. CO. | KINSMAN | Landline | 358 | active |
| 815-393 | FRONTIER NORTH, INC. - IL | MONROE CTR | Landline | 364 | active |
| 815-394 | ILLINOIS BELL TEL CO | ROCKFORD | Landline | 360 | active |
| 815-395 | ILLINOIS BELL TEL CO | ROCKFORD | Landline | 360 | active |
| 815-396 | FRONTIER NORTH, INC. - IL | STEWARD | Landline | 364 | active |
| 815-397 | ILLINOIS BELL TEL CO | ROCKFORD | Landline | 360 | active |
| 815-398 | ILLINOIS BELL TEL CO | ROCKFORD | Landline | 360 | active |
| 815-399 | ILLINOIS BELL TEL CO | ROCKFORD | Landline | 360 | active |
| 815-400 | MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL | MORRISON | Landline | 364 | active |
| 815-401 | LEVEL 3 COMMUNICATIONS, LLC - IL | KANKAKEE | Landline | 358 | active |
| 815-402 | LEVEL 3 COMMUNICATIONS, LLC - IL | GALENA | Landline | 634 | active |
| 815-403 | METROPCS, INC. | MCHENRY | Wireless | 358 | active |
| 815-404 | METROPCS, INC. | CRYSTAL LK | Wireless | 358 | active |
| 815-405 | T-MOBILE USA, INC. | JOLIET | Wireless | 358 | active |
| 815-406 | FRONTIER NORTH, INC. - IL | BYRON | Landline | 360 | active |
| 815-407 | ILLINOIS BELL TEL CO | LOCKPORT | Landline | 358 | active |
| 815-408 | BANDWIDTH.COM CLEC, LLC - IL | UTICA | VoIP | 358 | active |
| 815-409 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | JOLIET | Wireless | 358 | active |
| 815-410 | LEVEL 3 COMMUNICATIONS, LLC - IL | LA SALLE | Landline | 358 | active |
| 815-412 | LEVEL 3 COMMUNICATIONS, LLC - IL | FRANKFORT | Landline | 358 | active |
| 815-413 | FIRST COMMUNICATIONS, LLC | MORRIS | VoIP | 358 | active |
| 815-414 | NEW CINGULAR WIRELESS PCS, LLC - IL | EARLVILLE | Wireless | 358 | active |
| 815-415 | ILLINOIS BELL TEL CO | SENECA | Landline | 358 | active |
| 815-416 | ILLINOIS BELL TEL CO | MORRIS | Landline | 358 | active |
| 815-417 | ILLINOIS BELL TEL CO | BRAIDWOOD | Landline | 358 | active |
| 815-418 | FIRST COMMUNICATIONS, LLC | MANHATTAN | VoIP | 358 | active |
| 815-419 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | PONTIAC | Wireless | 366 | active |
| 815-420 | ONVOY, LLC | ROCKFORD | Landline | 360 | active |
| 815-421 | ILLINOIS BELL TEL CO | HERSCHER | Landline | 358 | active |
| 815-422 | ILLINOIS BELL TEL CO | ST ANNE | Landline | 358 | active |
| 815-423 | ILLINOIS BELL TEL CO | ELWOOD | Landline | 358 | active |
| 815-424 | ILLINOIS BELL TEL CO | ELWOOD | Landline | 358 | active |
| 815-425 | LEVEL 3 COMMUNICATIONS, LLC - IL | CRYSTAL LK | Landline | 358 | active |
| 815-426 | ILLINOIS BELL TEL CO | HERSCHER | Landline | 358 | active |
| 815-427 | ILLINOIS BELL TEL CO | ST ANNE | Landline | 358 | active |
| 815-428 | FRONTIER NORTH, INC. - IL | MARTINTON | Landline | 358 | active |
| 815-429 | FRONTIER NORTH, INC. - IL | SHELDON | Landline | 358 | active |
| 815-430 | FIRST COMMUNICATIONS, LLC | MCHENRY | VoIP | 358 | active |
| 815-431 | ILLINOIS BELL TEL CO | OTTAWA | Landline | 358 | active |
| 815-432 | ILLINOIS BELL TEL CO | WATSEKA | Landline | 358 | active |
| 815-433 | ILLINOIS BELL TEL CO | OTTAWA | Landline | 358 | active |
| 815-434 | ILLINOIS BELL TEL CO | OTTAWA | Landline | 358 | active |
| 815-435 | FRONTIER NORTH, INC. - IL | BEAVERVL | Landline | 358 | active |
| 815-436 | ILLINOIS BELL TEL CO | PLAINFIELD | Landline | 358 | active |
| 815-437 | FRONTIER NORTH, INC. - IL | PUTNAM | Landline | 368 | active |
| 815-438 | CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL | TAMPICO | Landline | 364 | active |
| 815-439 | ILLINOIS BELL TEL CO | PLAINFIELD | Landline | 358 | active |
| 815-440 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | DIXON | Wireless | 364 | active |
| 815-441 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | STERLING | Wireless | 364 | active |
| 815-442 | TONICA TEL. CO. | TONICA | Landline | 358 | active |
| 815-443 | FRONTIER NORTH, INC. - IL | PEARL CITY | Landline | 360 | active |
| 815-444 | ILLINOIS BELL TEL CO | CRYSTAL LK | Landline | 358 | active |
| 815-445 | FRONTIER NORTH, INC. - IL | MANLIUS | Landline | 368 | active |
| 815-446 | FRONTIER NORTH, INC. - IL | CEDARPOINT | Landline | 358 | active |
| 815-447 | FRONTIER COMMUNICATIONS OF DEPUE, INC. | DEPUE | Landline | 358 | active |
| 815-448 | ILLINOIS BELL TEL CO | MAZON | Landline | 358 | active |
| 815-449 | FRONTIER NORTH, INC. - IL | DAKOTA | Landline | 360 | active |
| 815-450 | NEW CINGULAR WIRELESS PCS, LLC - IL | MOMENCE | Wireless | 358 | active |
| 815-451 | NEW CINGULAR WIRELESS PCS, LLC - IL | WOODSTOCK | Wireless | 358 | active |
| 815-452 | FRONTIER NORTH, INC. - IL | TOLUCA | Landline | 366 | active |
| 815-453 | FRONTIER NORTH, INC. - IL | ASHTON | Landline | 364 | active |
| 815-454 | FRONTIER NORTH, INC. - IL | SHEFFIELD | Landline | 368 | active |
| 815-455 | ILLINOIS BELL TEL CO | CRYSTAL LK | Landline | 358 | active |
| 815-456 | FRONTIER NORTH, INC. - IL | FRANKLIGRV | Landline | 364 | active |
| 815-457 | FRONTIER COMMUNICATIONS OF THE CAROLINAS, INC - IL | CISSNAPARK | Landline | 358 | active |
| 815-458 | ILLINOIS BELL TEL CO | BRAIDWOOD | Landline | 358 | active |
| 815-459 | ILLINOIS BELL TEL CO | CRYSTAL LK | Landline | 358 | active |
| 815-460 | FIRST COMMUNICATIONS, LLC | JOLIET | VoIP | 358 | active |
| 815-461 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | LOCKPORT | Landline | 358 | active |
| 815-462 | ILLINOIS BELL TEL CO | NEW LENOX | Landline | 358 | active |
| 815-463 | ILLINOIS BELL TEL CO | NEW LENOX | Landline | 358 | active |
| 815-464 | ILLINOIS BELL TEL CO | FRANKFORT | Landline | 358 | active |
| 815-465 | ILLINOIS BELL TEL CO | GRANT PARK | Landline | 358 | active |
| 815-466 | ILLINOIS BELL TEL CO | GRANT PARK | Landline | 358 | active |
| 815-467 | ILLINOIS BELL TEL CO | MINOOKA | Landline | 358 | active |
| 815-468 | ILLINOIS BELL TEL CO | MANTENO | Landline | 358 | active |
| 815-469 | ILLINOIS BELL TEL CO | FRANKFORT | Landline | 358 | active |
| 815-470 | ILLINOIS BELL TEL CO | ROCKFORD | Landline | 360 | active |
| 815-471 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | WATSEKA | Wireless | 358 | active |
| 815-472 | ILLINOIS BELL TEL CO | MOMENCE | Landline | 358 | active |
| 815-473 | FRONTIER COMMUNICATIONS OF THE CAROLINAS, INC - IL | WOODLAND | Landline | 358 | active |
| 815-474 | NEW CINGULAR WIRELESS PCS, LLC - IL | JOLIET | Wireless | 358 | active |
| 815-475 | ILLINOIS BELL TEL CO | PLATTVILLE | Landline | 358 | active |
| 815-476 | ILLINOIS BELL TEL CO | WILMINGTON | Landline | 358 | active |
| 815-477 | ILLINOIS BELL TEL CO | CRYSTAL LK | Landline | 358 | active |
| 815-478 | ILLINOIS BELL TEL CO | MANHATTAN | Landline | 358 | active |
| 815-479 | ILLINOIS BELL TEL CO | CRYSTAL LK | Landline | 358 | active |
| 815-480 | SPOK, INC. | ROCKFORD | Landline | 360 | active |
| 815-481 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | LA GRANGE | Wireless | 358 | active |
| 815-482 | T-MOBILE USA, INC. | WOODSTOCK | Wireless | 358 | active |
| 815-483 | METROPCS, INC. | JOLIET | Wireless | 358 | active |
| 815-484 | ILLINOIS BELL TEL CO | ROCKFORD | Landline | 360 | active |
| 815-485 | ILLINOIS BELL TEL CO | NEW LENOX | Landline | 358 | active |
| 815-486 | FRONTIER NORTH, INC. - IL | DONOVAN | Landline | 358 | active |
| 815-487 | FIRST COMMUNICATIONS, LLC | PLAINFIELD | VoIP | 358 | active |
| 815-488 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | LA GRANGE | Wireless | 358 | active |
| 815-489 | ILLINOIS BELL TEL CO | ROCKFORD | Landline | 360 | active |
| 815-490 | ILLINOIS BELL TEL CO | ROCKFORD | Landline | 360 | active |
| 815-491 | NUSO, LLC | ROCKFORD | Wireless | 360 | active |
| 815-492 | FRONTIER NORTH, INC. - IL | APPLERIVER | Landline | 360 | active |
| 815-493 | CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL | LANARK | Landline | 364 | active |
| 815-494 | UNITED STATES CELLULAR - IL | ROCKFORD | Wireless | 360 | active |
| 815-495 | FRONTIER NORTH, INC. - IL | LELAND | Landline | 358 | active |
| 815-496 | FRONTIER NORTH, INC. - IL | SHERIDAN | Landline | 358 | active |
| 815-497 | FRONTIER NORTH, INC. - IL | COMPTON | Landline | 368 | active |
| 815-498 | FRONTIER NORTH, INC. - IL | SOMONAUK | Landline | 358 | active |
| 815-499 | UNITED STATES CELLULAR - IL | STERLING | Wireless | 364 | active |
| 815-500 | MCC TELEPHONY LLC | MARSEILLES | VoIP | 358 | active |
| 815-501 | METROPCS, INC. | DE KALB | Wireless | 364 | active |
| 815-502 | FIRST COMMUNICATIONS, LLC | WOODSTOCK | VoIP | 358 | active |
| 815-503 | METROPCS, INC. | MENDOTA | Wireless | 368 | active |
| 815-504 | FIRST COMMUNICATIONS, LLC | GARDNER | VoIP | 358 | active |
| 815-505 | T-MOBILE USA, INC. | ROCKFORD | Wireless | 360 | active |
| 815-506 | LEVEL 3 COMMUNICATIONS, LLC - IL | UNION | Landline | 358 | active |
| 815-507 | LEVEL 3 COMMUNICATIONS, LLC - IL | MOMENCE | Landline | 358 | active |
| 815-508 | NEW CINGULAR WIRELESS PCS, LLC - IL | DE KALB | Wireless | 364 | active |
| 815-509 | T-MOBILE USA, INC. | ROCKFORD | Wireless | 360 | active |
| 815-510 | MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL | STREATOR | Landline | 366 | active |
| 815-512 | FIRST COMMUNICATIONS, LLC | LOCKPORT | VoIP | 358 | active |
| 815-513 | LEVEL 3 COMMUNICATIONS, LLC - IL | MORRIS | Landline | 358 | active |
| 815-514 | T-MOBILE USA, INC. | JOLIET | Wireless | 358 | active |
| 815-515 | LEVEL 3 COMMUNICATIONS, LLC - IL | WATSEKA | Landline | 358 | active |
| 815-516 | T-MOBILE USA, INC. | ROCKFORD | Wireless | 360 | active |
| 815-517 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | DE KALB | Landline | 364 | active |
| 815-518 | FIRST COMMUNICATIONS, LLC | COAL CITY | VoIP | 358 | active |
| 815-519 | T-MOBILE USA, INC. | ROCKFORD | Wireless | 360 | active |
| 815-520 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | ROCKFORD | Wireless | 360 | active |
| 815-521 | ILLINOIS BELL TEL CO | MINOOKA | Landline | 358 | active |
| 815-522 | FRONTIER NORTH, INC. - IL | KIRKLAND | Landline | 364 | active |
| 815-523 | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | KANKAKEE | Landline | 358 | active |
| 815-524 | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | LOCKPORT | Landline | 358 | active |
| 815-525 | TDS METROCOM, LLC | SO BELOIT | VoIP | 354 | active |
| 815-526 | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | CRYSTAL LK | Landline | 358 | active |
| 815-527 | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | WOODSTOCK | Landline | 358 | active |
| 815-528 | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | MCHENRY | Landline | 358 | active |
| 815-529 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | WOODSTOCK | Wireless | 358 | active |
| 815-530 | T-MOBILE USA, INC. | JOLIET | Wireless | 358 | active |
| 815-531 | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | JOLIET | Landline | 358 | active |
| 815-532 | SPOK, INC. | MORRIS | Landline | 358 | active |
| 815-533 | INDIANA PAGING NETWORK, INC. | LA GRANGE | Landline | 358 | active |
| 815-534 | LEVEL 3 COMMUNICATIONS, LLC - IL | FRANKFORT | Landline | 358 | active |
| 815-535 | ILLINOIS BELL TEL CO | STERLING | Landline | 364 | active |
| 815-536 | SPOK, INC. | LA GRANGE | Landline | 358 | active |
| 815-537 | CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL | PROPHETSTN | Landline | 364 | active |
| 815-538 | FRONTIER NORTH, INC. - IL | MENDOTA | Landline | 368 | active |
| 815-539 | FRONTIER NORTH, INC. - IL | MENDOTA | Landline | 368 | active |
| 815-540 | T-MOBILE USA, INC. | ROCKFORD | Wireless | 360 | active |
| 815-541 | UNITED STATES CELLULAR - IL | FREEPORT | Wireless | 360 | active |
| 815-542 | CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL | THOMAS | Landline | 364 | active |
| 815-543 | UNITED STATES CELLULAR - IL | ROCKFORD | Wireless | 360 | active |
| 815-544 | FRONTIER NORTH, INC. - IL | BELVIDERE | Landline | 360 | active |
| 815-545 | NEW CINGULAR WIRELESS PCS, LLC - IL | JOLIET | Wireless | 358 | active |
| 815-546 | NEW CINGULAR WIRELESS PCS, LLC - IL | JOLIET | Wireless | 358 | active |
| 815-547 | FRONTIER NORTH, INC. - IL | BELVIDERE | Landline | 360 | active |
| 815-548 | ILLINOIS BELL TEL CO | STERLING | Landline | 364 | active |
| 815-549 | T-MOBILE USA, INC. | KANKAKEE | Wireless | 358 | active |
| 815-550 | LEVEL 3 COMMUNICATIONS, LLC - IL | GRANT PARK | Landline | 358 | active |
| 815-551 | ONVOY, LLC | LANARK | Landline | 364 | active |
| 815-552 | ILLINOIS BELL TEL CO | LOCKPORT | Landline | 358 | active |
| 815-553 | PAETEC ITEL, LLC | JOLIET | VoIP | 358 | active |
| 815-554 | MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL | E DUBUQUE | Landline | 634 | active |
| 815-556 | LEVEL 3 COMMUNICATIONS, LLC - IL | PLAINFIELD | Landline | 358 | active |
| 815-557 | METROPCS, INC. | JOLIET | Wireless | 358 | active |
| 815-558 | UNITED STATES CELLULAR - IL | ROCKFORD | Wireless | 360 | active |
| 815-559 | VOIP INNOVATIONS, LLC | CHENOA | VoIP | 366 | active |
| 815-560 | METROPCS, INC. | HARVARD | Wireless | 358 | active |
| 815-561 | FRONTIER NORTH, INC. - IL | ROCHELLE | Landline | 364 | active |
| 815-562 | FRONTIER NORTH, INC. - IL | ROCHELLE | Landline | 364 | active |
| 815-563 | FRONTIER NORTH, INC. - IL | CEDARVILLE | Landline | 360 | active |
| 815-564 | ILLINOIS BELL TEL CO | STERLING | Landline | 364 | active |
| 815-565 | MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL | SAVANNA | Landline | 364 | active |
| 815-566 | LEVEL 3 COMMUNICATIONS, LLC - IL | BELVIDERE | Landline | 360 | active |
| 815-567 | FRONTIER NORTH, INC. - IL | CAMPUS | Landline | 366 | active |
| 815-568 | ILLINOIS BELL TEL CO | MARENGO | Landline | 358 | active |
| 815-569 | FRONTIER NORTH, INC. - IL | CAPRON | Landline | 360 | active |
| 815-570 | LEVEL 3 COMMUNICATIONS, LLC - IL | SANDWICH | Landline | 358 | active |
| 815-571 | MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL | SHANNON | Landline | 364 | active |
| 815-572 | LEVEL 3 COMMUNICATIONS, LLC - IL | MARENGO | Landline | 358 | active |
| 815-573 | LEVEL 3 COMMUNICATIONS, LLC - IL | KANKAKEE | Landline | 358 | active |
| 815-574 | AERO NORTH COMMUNICATIONS, INC. - IL | HARMON | Landline | 364 | active |
| 815-575 | NEW CINGULAR WIRELESS PCS, LLC - IL | WOODSTOCK | Wireless | 358 | active |
| 815-576 | AERO NORTH COMMUNICATIONS, INC. - IL | POLO | Landline | 364 | active |
| 815-577 | ILLINOIS BELL TEL CO | PLAINFIELD | Landline | 358 | active |
| 815-578 | ILLINOIS BELL TEL CO | MCHENRY | Landline | 358 | active |
| 815-579 | METROPCS, INC. | LA SALLE | Wireless | 358 | active |
| 815-580 | AT&T - LOCAL | CHERRY VLY | Landline | 360 | active |
| 815-581 | COMCAST IP PHONE, LLC | SPRING GRV | VoIP | 358 | active |
| 815-582 | T-MOBILE USA, INC. | JOLIET | Wireless | 358 | active |
| 815-583 | AERO NORTH COMMUNICATIONS, INC. - IL | MORRISON | Landline | 364 | active |
| 815-584 | ILLINOIS BELL TEL CO | DWIGHT | Landline | 358 | active |
| 815-585 | LEVEL 3 COMMUNICATIONS, LLC - IL | MORRIS | Landline | 358 | active |
| 815-586 | C-R TELEPHONE CO. | RANSOM | Landline | 366 | active |
| 815-587 | LEVEL 3 COMMUNICATIONS, LLC - IL | OTTAWA | Landline | 358 | active |
| 815-588 | ILLINOIS BELL TEL CO | LOCKPORT | Landline | 358 | active |
| 815-589 | CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL | FULTON | Landline | 364 | active |
| 815-590 | T-MOBILE USA, INC. | STERLING | Wireless | 364 | active |
| 815-591 | FRONTIER NORTH, INC. - IL | HANOVER | Landline | 360 | active |
| 815-592 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | KANKAKEE | Wireless | 358 | active |
| 815-593 | T-MOBILE USA, INC. | DE KALB | Wireless | 364 | active |
| 815-594 | FRONTIER NORTH, INC. - IL | APPLERIVER | Landline | 360 | active |
| 815-595 | AT&T - LOCAL | OREGON | Landline | 364 | active |
| 815-596 | AT&T ENTERPRISES, LLC | MARENGO | VoIP | 358 | active |
| 815-597 | FRONTIER NORTH, INC. - IL | GARDENPRRI | Landline | 360 | active |
| 815-598 | FRONTIER NORTH, INC. - IL | MASSBACH | Landline | 360 | active |
| 815-599 | FRONTIER NORTH, INC. - IL | FREEPORT | Landline | 360 | active |
| 815-600 | NEW CINGULAR WIRELESS PCS, LLC - IL | JOLIET | Wireless | 358 | active |
| 815-601 | UNITED STATES CELLULAR - IL | ROCKFORD | Wireless | 360 | active |
| 815-602 | FIRST COMMUNICATIONS, LLC | KANKAKEE | VoIP | 358 | active |
| 815-603 | T-MOBILE USA, INC. | JOLIET | Wireless | 358 | active |
| 815-604 | ONVOY, LLC | BELVIDERE | Landline | 360 | active |
| 815-605 | LEVEL 3 COMMUNICATIONS, LLC - IL | GRANT PARK | Landline | 358 | active |
| 815-606 | FIRST COMMUNICATIONS, LLC | OTTAWA | VoIP | 358 | active |
| 815-607 | ONVOY SPECTRUM, LLC | PEARL CITY | Wireless | 360 | active |
| 815-608 | T-MOBILE USA, INC. | ROCKFORD | Wireless | 360 | active |
| 815-609 | ILLINOIS BELL TEL CO | PLAINFIELD | Landline | 358 | active |
| 815-610 | ONVOY, LLC | HENNEPIN | Landline | 368 | active |
| 815-612 | NEW CINGULAR WIRELESS PCS, LLC - IL | MOMENCE | Wireless | 358 | active |
| 815-613 | NEW CINGULAR WIRELESS PCS, LLC - IL | DIXON | Wireless | 364 | active |
| 815-614 | ILLINOIS BELL TEL CO | KANKAKEE | Landline | 358 | active |
| 815-615 | LEVEL 3 COMMUNICATIONS, LLC - IL | MENDOTA | Landline | 368 | active |
| 815-616 | T-MOBILE USA, INC. | FREEPORT | Wireless | 360 | active |
| 815-617 | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | OTTAWA | Landline | 358 | active |
| 815-618 | NEW CINGULAR WIRELESS PCS, LLC - IL | FREEPORT | Wireless | 360 | active |
| 815-619 | AERO NORTH COMMUNICATIONS, INC. - IL | ROCKTON | Landline | 360 | active |
| 815-620 | PEERLESS NETWORK OF ILLINOIS, LLC - IL | MINOOKA | Landline | 358 | active |
| 815-621 | T-MOBILE USA, INC. | ROCKFORD | Wireless | 360 | active |
| 815-622 | ILLINOIS BELL TEL CO | STERLING | Landline | 364 | active |
| 815-623 | FRONTIER NORTH, INC. - IL | ROSCOE | Landline | 360 | active |
| 815-624 | FRONTIER NORTH, INC. - IL | ROCKTON | Landline | 360 | active |
| 815-625 | ILLINOIS BELL TEL CO | STERLING | Landline | 364 | active |
| 815-626 | ILLINOIS BELL TEL CO | STERLING | Landline | 364 | active |
| 815-627 | FRONTIER NORTH, INC. - IL | PAW PAW | Landline | 358 | active |
| 815-628 | FRONTIER NORTH, INC. - IL | W BROOKLYN | Landline | 368 | active |
| 815-629 | FRONTIER NORTH, INC. - IL | SHIRLAND | Landline | 360 | active |
| 815-630 | T-MOBILE USA, INC. | JOLIET | Wireless | 358 | active |
| 815-631 | ILLINOIS BELL TEL CO | STERLING | Landline | 364 | active |
| 815-632 | ILLINOIS BELL TEL CO | STERLING | Landline | 364 | active |
| 815-633 | ILLINOIS BELL TEL CO | ROCKFORD | Landline | 360 | active |
| 815-634 | ILLINOIS BELL TEL CO | COAL CITY | Landline | 358 | active |
| 815-635 | FRONTIER NORTH, INC. - IL | CHATSWORTH | Landline | 366 | active |
| 815-636 | ILLINOIS BELL TEL CO | ROCKFORD | Landline | 360 | active |
| 815-637 | ILLINOIS BELL TEL CO | ROCKFORD | Landline | 360 | active |
| 815-638 | FRONTIER NORTH, INC. - IL | LA MOILLE | Landline | 368 | active |
| 815-639 | ILLINOIS BELL TEL CO | ROCKFORD | Landline | 360 | active |
| 815-640 | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | OTTAWA | Landline | 358 | active |
| 815-641 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | JOLIET | Wireless | 358 | active |
| 815-642 | LEVEL 3 COMMUNICATIONS, LLC - IL | MINOOKA | Landline | 358 | active |
| 815-643 | FRONTIER NORTH, INC. - IL | DOVER | Landline | 368 | active |
| 815-644 | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | CRESCENTCY | Landline | 358 | active |
| 815-645 | FRONTIER NORTH, INC. - IL | STILMANVLY | Landline | 360 | active |
| 815-646 | FRONTIER NORTH, INC. - IL | TISKILWA | Landline | 368 | active |
| 815-647 | MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL | CULLOM | Landline | 366 | active |
| 815-648 | FRONTIER NORTH, INC. - IL | HEBRON | Landline | 358 | active |
| 815-649 | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | GARDNER | Landline | 358 | active |
| 815-650 | METROPCS, INC. | FREEPORT | Wireless | 360 | active |
| 815-651 | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | JOLIET | Landline | 358 | active |
| 815-652 | BRIGHTSPEED OF ILLINOIS, LLC | GRANDDTOUR | Landline | 364 | active |
| 815-653 | FRONTIER NORTH, INC. - IL | WONDERLAKE | Landline | 358 | active |
| 815-654 | ILLINOIS BELL TEL CO | ROCKFORD | Landline | 360 | active |
| 815-655 | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | COAL CITY | VoIP | 358 | active |
| 815-656 | LEVEL 3 COMMUNICATIONS, LLC - IL | FREEPORT | Landline | 360 | active |
| 815-657 | ILLINOIS BELL TEL CO | FORREST | Landline | 366 | active |
| 815-658 | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | NEWARK | VoIP | 358 | active |
| 815-659 | FRONTIER NORTH, INC. - IL | BUREAU | Landline | 368 | active |
| 815-660 | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | LOCKPORT | Landline | 358 | active |
| 815-661 | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | MORRIS | Landline | 358 | active |
| 815-662 | LEVEL 3 COMMUNICATIONS, LLC - IL | MOMENCE | Landline | 358 | active |
| 815-663 | FRONTIER NORTH, INC. - IL | SPRING VLY | Landline | 368 | active |
| 815-664 | FRONTIER NORTH, INC. - IL | SPRING VLY | Landline | 368 | active |
| 815-665 | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | OTTAWA | Landline | 358 | active |
| 815-666 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | JOLIET | Wireless | 358 | active |
| 815-667 | ILLINOIS BELL TEL CO | UTICA | Landline | 358 | active |
| 815-668 | ONVOY, LLC | ROCKFORD | Landline | 360 | active |
| 815-669 | LEVEL 3 COMMUNICATIONS, LLC - IL | MCHENRY | Landline | 358 | active |
| 815-670 | T-MOBILE USA, INC. | ROCKFORD | Wireless | 360 | active |
| 815-671 | LEVEL 3 COMMUNICATIONS, LLC - IL | JOLIET | Landline | 358 | active |
| 815-672 | FRONTIER NORTH, INC. - IL | STREATOR | Landline | 366 | active |
| 815-673 | FRONTIER NORTH, INC. - IL | STREATOR | Landline | 366 | active |
| 815-674 | NEW CINGULAR WIRELESS PCS, LLC - IL | STREATOR | Wireless | 366 | active |
| 815-675 | FRONTIER NORTH, INC. - IL | SPRING GRV | Landline | 358 | active |
| 815-676 | LEVEL 3 COMMUNICATIONS, LLC - IL | PLAINFIELD | Landline | 358 | active |
| 815-677 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | DIXON | Wireless | 364 | active |
| 815-678 | FRONTIER NORTH, INC. - IL | RICHMOND | Landline | 358 | active |
| 815-679 | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | MCHENRY | Landline | 358 | active |
| 815-680 | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | MANHATTAN | Landline | 358 | active |
| 815-681 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | OGLESBY | Wireless | 358 | active |
| 815-682 | FRONTIER COMMUNICATIONS OF THE CAROLINAS, INC - IL | STOCKLAND | Landline | 358 | active |
| 815-683 | ILLINOIS BELL TEL CO | CRESCENTCY | Landline | 358 | active |
| 815-684 | CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL | CHADWICK | Landline | 364 | active |
| 815-685 | NEW CINGULAR WIRELESS PCS, LLC - IL | JOLIET | Wireless | 358 | active |
| 815-686 | FRONTIER NORTH, INC. - IL | PIPER CITY | Landline | 366 | active |
| 815-687 | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | WOODSTOCK | Landline | 358 | active |
| 815-688 | FRONTIER NORTH, INC. - IL | STRAWN | Landline | 366 | active |
| 815-689 | FRONTIER COMMUNICATIONS OF ILLINOIS, INC. | CULLOM | Landline | 366 | active |
| 815-690 | T-MOBILE USA, INC. | JOLIET | Wireless | 358 | active |
| 815-691 | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | UTICA | Landline | 358 | active |
| 815-692 | FRONTIER NORTH, INC. - IL | FAIRBURY | Landline | 366 | active |
| 815-693 | T-MOBILE USA, INC. | JOLIET | Wireless | 358 | active |
| 815-694 | FRONTIER NORTH, INC. - IL | CLIFTON | Landline | 358 | active |
| 815-695 | ILLINOIS BELL TEL CO | NEWARK | Landline | 358 | active |
| 815-696 | AERO NORTH COMMUNICATIONS, INC. - IL | ROSCOE | Landline | 360 | active |
| 815-697 | FRONTIER NORTH, INC. - IL | CHEBANSE | Landline | 358 | active |
| 815-698 | FRONTIER NORTH, INC. - IL | ASHKUM | Landline | 358 | active |
| 815-699 | FRONTIER NORTH, INC. - IL | WYANET | Landline | 368 | active |
| 815-701 | LEVEL 3 COMMUNICATIONS, LLC - IL | WOODSTOCK | Landline | 358 | active |
| 815-702 | CENTURYLINK COMMUNICATIONS, LLC | SAUNEMIN | VoIP | 366 | active |
| 815-703 | T-MOBILE USA, INC. | ROCKFORD | Wireless | 360 | active |
| 815-704 | PAETEC ITEL, LLC | SO BELOIT | VoIP | 354 | active |
| 815-705 | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | MORRIS | Landline | 358 | active |
| 815-706 | EXIANT COMMUNICATIONS LLC | ROCKFORD | VoIP | 360 | active |
| 815-707 | LEVEL 3 COMMUNICATIONS, LLC - IL | GILMAN | Landline | 358 | active |
| 815-708 | COMCAST IP PHONE, LLC | ROCKFORD | VoIP | 360 | active |
| 815-709 | LEVEL 3 COMMUNICATIONS, LLC - IL | COAL CITY | Landline | 358 | active |
| 815-710 | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | MORRIS | Landline | 358 | active |
| 815-712 | T-MOBILE USA, INC. | LA SALLE | Wireless | 358 | active |
| 815-713 | NEW CINGULAR WIRELESS PCS, LLC - IL | ROCKFORD | Wireless | 360 | active |
| 815-714 | BANDWIDTH.COM CLEC, LLC - IL | JOLIET | VoIP | 358 | active |
| 815-715 | NEW CINGULAR WIRELESS PCS, LLC - IL | JOLIET | Wireless | 358 | active |
| 815-716 | METROPCS, INC. | STERLING | Wireless | 364 | active |
| 815-717 | FIRST COMMUNICATIONS, LLC | NEW LENOX | VoIP | 358 | active |
| 815-718 | UNITED STATES CELLULAR - IL | STERLING | Wireless | 364 | active |
| 815-719 | METROPCS, INC. | PRINCETON | Wireless | 368 | active |
| 815-720 | ILLINOIS BELL TEL CO | ROCKFORD | Landline | 360 | active |
| 815-721 | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | ROCKFORD | VoIP | 360 | active |
| 815-722 | ILLINOIS BELL TEL CO | JOLIET | Landline | 358 | active |
| 815-723 | ILLINOIS BELL TEL CO | JOLIET | Landline | 358 | active |
| 815-724 | ILLINOIS BELL TEL CO | JOLIET | Landline | 358 | active |
| 815-725 | ILLINOIS BELL TEL CO | JOLIET | Landline | 358 | active |
| 815-726 | ILLINOIS BELL TEL CO | JOLIET | Landline | 358 | active |
| 815-727 | ILLINOIS BELL TEL CO | JOLIET | Landline | 358 | active |
| 815-728 | FRONTIER NORTH, INC. - IL | WONDERLAKE | Landline | 358 | active |
| 815-729 | ILLINOIS BELL TEL CO | JOLIET | Landline | 358 | active |
| 815-730 | ILLINOIS BELL TEL CO | JOLIET | Landline | 358 | active |
| 815-731 | ILLINOIS BELL TEL CO | PLAINFIELD | Landline | 358 | active |
| 815-732 | FRONTIER NORTH, INC. - IL | OREGON | Landline | 364 | active |
| 815-733 | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | PLAINFIELD | Landline | 358 | active |
| 815-734 | FRONTIER NORTH, INC. - IL | MT MORRIS | Landline | 364 | active |
| 815-735 | NEW CINGULAR WIRELESS PCS, LLC - IL | JOLIET | Wireless | 358 | active |
| 815-736 | ILLINOIS BELL TEL CO | LISBON | Landline | 358 | active |
| 815-737 | SHARON TEL. CO. - IL | SO SHARON | Landline | 356 | active |
| 815-738 | LEAF RIVER TELEPHONE CO. | LEAF RIVER | Landline | 364 | active |
| 815-739 | METROPCS, INC. | SYCAMORE | Wireless | 364 | active |
| 815-740 | ILLINOIS BELL TEL CO | JOLIET | Landline | 358 | active |
| 815-741 | ILLINOIS BELL TEL CO | JOLIET | Landline | 358 | active |
| 815-742 | UNITED STATES CELLULAR - IL | ROCKFORD | Wireless | 360 | active |
| 815-743 | FRONTIER COMMUNICATIONS-PRAIRIE, INC. | GRAYMONT | Landline | 366 | active |
| 815-744 | ILLINOIS BELL TEL CO | JOLIET | Landline | 358 | active |
| 815-745 | FRONTIER NORTH, INC. - IL | WARREN | Landline | 360 | active |
| 815-746 | MARSEILLES TEL. CO. OF MARSEILLES | MARSEILLES | Landline | 358 | active |
| 815-747 | CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL | E DUBUQUE | Landline | 634 | active |
| 815-748 | FRONTIER NORTH, INC. - IL | DE KALB | Landline | 364 | active |
| 815-749 | BANDWIDTH.COM CLEC, LLC - IL | LOCKPORT | VoIP | 358 | active |
| 815-750 | MTCO COMMUNICATIONS, INC. | MARSEILLES | Landline | 358 | active |
| 815-751 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | DE KALB | Wireless | 364 | active |
| 815-752 | FRONTIER NORTH, INC. - IL | DE KALB | Landline | 364 | active |
| 815-753 | FRONTIER NORTH, INC. - IL | DE KALB | Landline | 364 | active |
| 815-754 | FRONTIER NORTH, INC. - IL | DE KALB | Landline | 364 | active |
| 815-755 | ONVOY, LLC | SENECA | Landline | 358 | active |
| 815-756 | FRONTIER NORTH, INC. - IL | DE KALB | Landline | 364 | active |
| 815-757 | UNITED STATES CELLULAR - IL | DE KALB | Wireless | 364 | active |
| 815-758 | FRONTIER NORTH, INC. - IL | DE KALB | Landline | 364 | active |
| 815-759 | ILLINOIS BELL TEL CO | MCHENRY | Landline | 358 | active |
| 815-760 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | BUREAU | Wireless | 368 | active |
| 815-761 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | DE KALB | Wireless | 364 | active |
| 815-762 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | DE KALB | Wireless | 364 | active |
| 815-763 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | JOLIET | Wireless | 358 | active |
| 815-764 | UNITED STATES CELLULAR - IL | DE KALB | Wireless | 364 | active |
| 815-765 | FRONTIER NORTH, INC. - IL | POPLAR GRV | Landline | 360 | active |
| 815-766 | UNITED STATES CELLULAR - IL | DE KALB | Wireless | 364 | active |
| 815-767 | AMERICAN MESSAGING SERVICES, LLC | LA GRANGE | Landline | 358 | active |
| 815-768 | ILLINOIS BELL TEL CO | JOLIET | Landline | 358 | active |
| 815-769 | LEVEL 3 COMMUNICATIONS, LLC - IL | SENECA | Landline | 358 | active |
| 815-770 | CHARTER IP ENABLED SERVICES, LLC | HARVARD | VoIP | 358 | active |
| 815-771 | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | ASHKUM | Landline | 358 | active |
| 815-772 | CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL | MORRISON | Landline | 364 | active |
| 815-773 | ILLINOIS BELL TEL CO | JOLIET | Landline | 358 | active |
| 815-774 | ILLINOIS BELL TEL CO | JOLIET | Landline | 358 | active |
| 815-775 | SPOK, INC. | WOODSTOCK | Landline | 358 | active |
| 815-776 | ILLINOIS BELL TEL CO | GALENA | Landline | 634 | active |
| 815-777 | ILLINOIS BELL TEL CO | GALENA | Landline | 634 | active |
| 815-778 | CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL | LYNDON | Landline | 364 | active |
| 815-779 | T-MOBILE USA, INC. | PLAINFIELD | Wireless | 358 | active |
| 815-780 | LEVEL 3 COMMUNICATIONS, LLC - IL | LA SALLE | Landline | 358 | active |
| 815-781 | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | CHEBANSE | Landline | 358 | active |
| 815-782 | LEVEL 3 COMMUNICATIONS, LLC - IL | PLAINFIELD | Landline | 358 | active |
| 815-783 | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | GILMAN | Landline | 358 | active |
| 815-784 | FRONTIER NORTH, INC. - IL | GENOA | Landline | 364 | active |
| 815-785 | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | WATSEKA | Landline | 358 | active |
| 815-786 | FRONTIER NORTH, INC. - IL | SANDWICH | Landline | 358 | active |
| 815-787 | FRONTIER NORTH, INC. - IL | DE KALB | Landline | 364 | active |
| 815-788 | ILLINOIS BELL TEL CO | CRYSTAL LK | Landline | 358 | active |
| 815-789 | FRONTIER NORTH, INC. - IL | ORANGEVL | Landline | 360 | active |
| 815-790 | T-MOBILE USA, INC. | WOODSTOCK | Wireless | 358 | active |
| 815-791 | T-MOBILE USA, INC. | JOLIET | Wireless | 358 | active |
| 815-792 | ILLINOIS BELL TEL CO | HARDING | Landline | 358 | active |
| 815-793 | T-MOBILE USA, INC. | DE KALB | Wireless | 364 | active |
| 815-794 | MARSEILLES TEL. CO. OF MARSEILLES | MARSEILLES | Landline | 358 | active |
| 815-795 | MARSEILLES TEL. CO. OF MARSEILLES | MARSEILLES | Landline | 358 | active |
| 815-796 | FRONTIER COMMUNICATIONS-PRAIRIE, INC. | FLANAGAN | Landline | 366 | active |
| 815-797 | LEVEL 3 COMMUNICATIONS, LLC - IL | SOMONAUK | Landline | 358 | active |
| 815-798 | AERO NORTH COMMUNICATIONS, INC. - IL | MILLEDGEVL | Landline | 364 | active |
| 815-799 | LEVEL 3 COMMUNICATIONS, LLC - IL | MANLIUS | Landline | 368 | active |
| 815-800 | MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL | POPLAR GRV | Landline | 360 | active |
| 815-801 | AERO NORTH COMMUNICATIONS, INC. - IL | FREEPORT | Landline | 360 | active |
| 815-802 | ILLINOIS BELL TEL CO | KANKAKEE | Landline | 358 | active |
| 815-803 | AERO NORTH COMMUNICATIONS, INC. - IL | BYRON | Landline | 360 | active |
| 815-804 | AERO NORTH COMMUNICATIONS, INC. - IL | PECATONICA | Landline | 360 | active |
| 815-805 | AERO NORTH COMMUNICATIONS, INC. - IL | DURAND | Landline | 360 | active |
| 815-806 | ILLINOIS BELL TEL CO | FRANKFORT | Landline | 358 | active |
| 815-807 | AERO NORTH COMMUNICATIONS, INC. - IL | GERMAN VLY | Landline | 360 | active |
| 815-808 | AERO NORTH COMMUNICATIONS, INC. - IL | WINSLOW | Landline | 360 | active |
| 815-809 | AERO NORTH COMMUNICATIONS, INC. - IL | LENA | Landline | 360 | active |
| 815-810 | AERO NORTH COMMUNICATIONS, INC. - IL | PEARL CITY | Landline | 360 | active |
| 815-812 | AERO NORTH COMMUNICATIONS, INC. - IL | DAKOTA | Landline | 360 | active |
| 815-813 | AERO NORTH COMMUNICATIONS, INC. - IL | APPLERIVER | Landline | 360 | active |
| 815-814 | T-MOBILE USA, INC. | WOODSTOCK | Wireless | 358 | active |
| 815-815 | ONVOY SPECTRUM, LLC | LADD | Wireless | 368 | active |
| 815-816 | AERO NORTH COMMUNICATIONS, INC. - IL | CEDARVILLE | Landline | 360 | active |
| 815-817 | AERO NORTH COMMUNICATIONS, INC. - IL | HANOVER | Landline | 360 | active |
| 815-818 | AERO NORTH COMMUNICATIONS, INC. - IL | WARREN | Landline | 360 | active |
| 815-819 | AERO NORTH COMMUNICATIONS, INC. - IL | ORANGEVL | Landline | 360 | active |
| 815-820 | AERO NORTH COMMUNICATIONS, INC. - IL | ELIZABETH | Landline | 360 | active |
| 815-821 | UNITED STATES CELLULAR - IL | FREEPORT | Wireless | 360 | active |
| 815-822 | NEW CINGULAR WIRELESS PCS, LLC - IL | STREATOR | Wireless | 366 | active |
| 815-823 | T-MOBILE USA, INC. | JOLIET | Landline | 358 | active |
| 815-824 | FRONTIER NORTH, INC. - IL | SHABBONA | Landline | 364 | active |
| 815-825 | FRONTIER NORTH, INC. - IL | MALTA | Landline | 364 | active |
| 815-826 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | SOMONAUK | Wireless | 358 | active |
| 815-827 | FRONTIER NORTH, INC. - IL | MAPLE PARK | Landline | 364 | active |
| 815-828 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | MINOOKA | Landline | 358 | active |
| 815-829 | AERO NORTH COMMUNICATIONS, INC. - IL | CHADWICK | Landline | 364 | active |
| 815-830 | NEW CINGULAR WIRELESS PCS, LLC - IL | OGLESBY | Wireless | 358 | active |
| 815-831 | AERO NORTH COMMUNICATIONS, INC. - IL | DAVIS | Landline | 360 | active |
| 815-832 | FRONTIER COMMUNICATIONS OF ILLINOIS, INC. | SAUNEMIN | Landline | 366 | active |
| 815-833 | AERO NORTH COMMUNICATIONS, INC. - IL | MCCONNELL | Landline | 360 | active |
| 815-834 | ILLINOIS BELL TEL CO | LOCKPORT | Landline | 358 | active |
| 815-835 | AERO NORTH COMMUNICATIONS, INC. - IL | DIXON | Landline | 364 | active |
| 815-836 | ILLINOIS BELL TEL CO | LOCKPORT | Landline | 358 | active |
| 815-837 | AERO NORTH COMMUNICATIONS, INC. - IL | FORRESTON | Landline | 360 | active |
| 815-838 | ILLINOIS BELL TEL CO | LOCKPORT | Landline | 358 | active |
| 815-839 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | KANKAKEE | Landline | 358 | active |
| 815-840 | AERO NORTH COMMUNICATIONS, INC. - IL | STOCKTON | Landline | 360 | active |
| 815-841 | AERO NORTH COMMUNICATIONS, INC. - IL | MT MORRIS | Landline | 364 | active |
| 815-842 | FRONTIER NORTH, INC. - IL | PONTIAC | Landline | 366 | active |
| 815-843 | AERO NORTH COMMUNICATIONS, INC. - IL | ASHTON | Landline | 364 | active |
| 815-844 | FRONTIER NORTH, INC. - IL | PONTIAC | Landline | 366 | active |
| 815-845 | FRONTIER NORTH, INC. - IL | SCALESMOND | Landline | 360 | active |
| 815-846 | LEVEL 3 COMMUNICATIONS, LLC - IL | JOLIET | Landline | 358 | active |
| 815-847 | AT&T ENTERPRISES, LLC | ROCKFORD | VoIP | 360 | active |
| 815-848 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | PONTIAC | Wireless | 366 | active |
| 815-849 | FRONTIER NORTH, INC. - IL | SUBLETTE | Landline | 364 | active |
| 815-850 | AERO NORTH COMMUNICATIONS, INC. - IL | SEWARD | Landline | 360 | active |
| 815-851 | SPOK, INC. | KANKAKEE | Landline | 358 | active |
| 815-852 | AERO NORTH COMMUNICATIONS, INC. - IL | SCALESMOND | Landline | 360 | active |
| 815-853 | FRONTIER NORTH, INC. - IL | WENONA | Landline | 366 | active |
| 815-854 | FRONTIER NORTH, INC. - IL | LONG POINT | Landline | 366 | active |
| 815-855 | MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL | MILLEDGEVL | Landline | 364 | active |
| 815-856 | LEONORE MUTUAL TEL. CO. | LEONORE | Landline | 366 | active |
| 815-857 | FRONTIER NORTH, INC. - IL | AMBOY | Landline | 364 | active |
| 815-858 | FRONTIER NORTH, INC. - IL | ELIZABETH | Landline | 360 | active |
| 815-859 | VONAGE AMERICA LLC | ROCHELLE | VoIP | 364 | active |
| 815-860 | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | ELWOOD | VoIP | 358 | active |
| 815-861 | NEW CINGULAR WIRELESS PCS, LLC - IL | WOODSTOCK | Wireless | 358 | active |
| 815-862 | CHARTER IP ENABLED SERVICES, LLC | RICHMOND | VoIP | 358 | active |
| 815-863 | FRONTIER NORTH, INC. - IL | RUTLAND | Landline | 366 | active |
| 815-864 | CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL | SHANNON | Landline | 364 | active |
| 815-865 | FRONTIER NORTH, INC. - IL | DAVIS | Landline | 360 | active |
| 815-866 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | PRINCETON | Wireless | 368 | active |
| 815-867 | T-MOBILE USA, INC. | PONTIAC | Wireless | 366 | active |
| 815-868 | FRONTIER NORTH, INC. - IL | MCCONNELL | Landline | 360 | active |
| 815-869 | FRONTIER NORTH, INC. - IL | MAGNOLIA | Landline | 366 | active |
| 815-870 | SPOK, INC. | ROCKFORD | Landline | 360 | active |
| 815-871 | UNITED STATES CELLULAR - IL | ROCKFORD | Wireless | 360 | active |
| 815-872 | FRONTIER NORTH, INC. - IL | PRINCETON | Landline | 368 | active |
| 815-873 | FRONTIER NORTH, INC. - IL | NEWMILFORD | Landline | 360 | active |
| 815-874 | FRONTIER NORTH, INC. - IL | NEWMILFORD | Landline | 360 | active |
| 815-875 | FRONTIER NORTH, INC. - IL | PRINCETON | Landline | 368 | active |
| 815-876 | FRONTIER NORTH, INC. - IL | PRINCETON | Landline | 368 | active |
| 815-877 | ILLINOIS BELL TEL CO | ROCKFORD | Landline | 360 | active |
| 815-878 | NEW CINGULAR WIRELESS PCS, LLC - IL | PRINCETON | Wireless | 368 | active |
| 815-879 | FRONTIER NORTH, INC. - IL | PRINCETON | Landline | 368 | active |
| 815-880 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | WOODSTOCK | Landline | 358 | active |
| 815-881 | LEVEL 3 COMMUNICATIONS, LLC - IL | OREGON | Landline | 364 | active |
| 815-882 | MCNABB TEL. CO. | MCNABB | Landline | 358 | active |
| 815-883 | ILLINOIS BELL TEL CO | OGLESBY | Landline | 358 | active |
| 815-884 | MCC TELEPHONY LLC | EARLVILLE | VoIP | 358 | active |
| 815-885 | FRONTIER NORTH, INC. - IL | ROCK CUT | Landline | 360 | active |
| 815-886 | ILLINOIS BELL TEL CO | LOCKPORT | Landline | 358 | active |
| 815-887 | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | HARVARD | Landline | 358 | active |
| 815-888 | LEVEL 3 COMMUNICATIONS, LLC - IL | ROCHELLE | Landline | 364 | active |
| 815-889 | FRONTIER COMMUNICATIONS OF THE CAROLINAS, INC - IL | MILFORD | Landline | 358 | active |
| 815-890 | AERO NORTH COMMUNICATIONS, INC. - IL | NEWMILFORD | Landline | 360 | active |
| 815-891 | AERO NORTH COMMUNICATIONS, INC. - IL | WINNEBAGO | Landline | 360 | active |
| 815-892 | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | STILMANVLY | VoIP | 360 | active |
| 815-893 | COMCAST IP PHONE, LLC | CRYSTAL LK | VoIP | 358 | active |
| 815-894 | FRONTIER NORTH, INC. - IL | LADD | Landline | 368 | active |
| 815-895 | FRONTIER NORTH, INC. - IL | SYCAMORE | Landline | 364 | active |
| 815-896 | AERO NORTH COMMUNICATIONS, INC. - IL | SHIRLAND | Landline | 360 | active |
| 815-897 | MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL | LYNDON | Landline | 364 | active |
| 815-898 | AERO NORTH COMMUNICATIONS, INC. - IL | MASSBACH | Landline | 360 | active |
| 815-899 | FRONTIER NORTH, INC. - IL | SYCAMORE | Landline | 364 | active |
| 815-900 | NEW CINGULAR WIRELESS PCS, LLC - IL | MCHENRY | Wireless | 358 | active |
| 815-901 | COMCAST IP PHONE, LLC | DE KALB | VoIP | 364 | active |
| 815-902 | MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL | THOMSON | Landline | 364 | active |
| 815-903 | AMERICAN MESSAGING SERVICES, LLC | MCHENRY | Landline | 358 | active |
| 815-904 | NEW CINGULAR WIRELESS PCS, LLC - IL | ROCKFORD | Wireless | 360 | active |
| 815-905 | LEVEL 3 COMMUNICATIONS, LLC - IL | LOCKPORT | Landline | 358 | active |
| 815-906 | MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL | MT CARROLL | Landline | 364 | active |
| 815-907 | LEVEL 3 COMMUNICATIONS, LLC - IL | MANTENO | Landline | 358 | active |
| 815-908 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | FREEPORT | Wireless | 360 | active |
| 815-909 | T-MOBILE USA, INC. | DE KALB | Wireless | 364 | active |
| 815-910 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | MENDOTA | Wireless | 368 | active |
| 815-912 | AERO NORTH COMMUNICATIONS, INC. - IL | BELVIDERE | Landline | 360 | active |
| 815-913 | CENTURYLINK COMMUNICATIONS, LLC | CHADWICK | VoIP | 364 | active |
| 815-914 | METROPCS, INC. | ROCKFORD | Wireless | 360 | active |
| 815-915 | LEVEL 3 COMMUNICATIONS, LLC - IL | PRINCETON | Landline | 368 | active |
| 815-916 | ONVOY, LLC | PLATTVILLE | Landline | 358 | active |
| 815-917 | AERO NORTH COMMUNICATIONS, INC. - IL | ROCHELLE | Landline | 364 | active |
| 815-918 | LEVEL 3 COMMUNICATIONS, LLC - IL | CLIFTON | Landline | 358 | active |
| 815-919 | T-MOBILE USA, INC. | JOLIET | Wireless | 358 | active |
| 815-920 | MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL | CORNELL | Landline | 366 | active |
| 815-921 | ILLINOIS BELL TEL CO | ROCKFORD | Landline | 360 | active |
| 815-922 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | KANKAKEE | Wireless | 358 | active |
| 815-923 | ILLINOIS BELL TEL CO | UNION | Landline | 358 | active |
| 815-924 | AERO NORTH COMMUNICATIONS, INC. - IL | PROPHETSTN | Landline | 364 | active |
| 815-925 | FRONTIER NORTH, INC. - IL | HENNEPIN | Landline | 368 | active |
| 815-926 | LEVEL 3 COMMUNICATIONS, LLC - IL | WILMINGTON | Landline | 358 | active |
| 815-927 | LEVEL 3 COMMUNICATIONS, LLC - IL | JOLIET | Landline | 358 | active |
| 815-928 | ILLINOIS BELL TEL CO | KANKAKEE | Landline | 358 | active |
| 815-929 | ILLINOIS BELL TEL CO | KANKAKEE | Landline | 358 | active |
| 815-930 | MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL | ELIZABETH | Landline | 360 | active |
| 815-931 | NEW CINGULAR WIRELESS PCS, LLC - IL | JOLIET | Wireless | 358 | active |
| 815-932 | ILLINOIS BELL TEL CO | KANKAKEE | Landline | 358 | active |
| 815-933 | ILLINOIS BELL TEL CO | KANKAKEE | Landline | 358 | active |
| 815-934 | FRONTIER NORTH, INC. - IL | EMINGTON | Landline | 366 | active |
| 815-935 | ILLINOIS BELL TEL CO | KANKAKEE | Landline | 358 | active |
| 815-936 | ILLINOIS BELL TEL CO | KANKAKEE | Landline | 358 | active |
| 815-937 | ILLINOIS BELL TEL CO | KANKAKEE | Landline | 358 | active |
| 815-938 | FRONTIER NORTH, INC. - IL | FORRESTON | Landline | 360 | active |
| 815-939 | ILLINOIS BELL TEL CO | KANKAKEE | Landline | 358 | active |
| 815-940 | LEVEL 3 COMMUNICATIONS, LLC - IL | GARDNER | Landline | 358 | active |
| 815-941 | ILLINOIS BELL TEL CO | MORRIS | Landline | 358 | active |
| 815-942 | ILLINOIS BELL TEL CO | MORRIS | Landline | 358 | active |
| 815-943 | ILLINOIS BELL TEL CO | HARVARD | Landline | 358 | active |
| 815-944 | ILLINOIS BELL TEL CO | MOMENCE | Landline | 358 | active |
| 815-945 | FRONTIER NORTH, INC. - IL | CHENOA | Landline | 366 | active |
| 815-946 | CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL | POLO | Landline | 364 | active |
| 815-947 | FRONTIER NORTH, INC. - IL | STOCKTON | Landline | 360 | active |
| 815-948 | CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL | HOOPPOLE | Landline | 364 | active |
| 815-949 | FRONTIER NORTH, INC. - IL | CABERY | Landline | 366 | active |
| 815-951 | AERO NORTH COMMUNICATIONS, INC. - IL | AMBOY | Landline | 364 | active |
| 815-952 | AERO NORTH COMMUNICATIONS, INC. - IL | LANARK | Landline | 364 | active |
| 815-953 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | KANKAKEE | Wireless | 358 | active |
| 815-954 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | KANKAKEE | Wireless | 358 | active |
| 815-955 | METROPCS, INC. | JOLIET | Wireless | 358 | active |
| 815-956 | CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL | MORRISON | Landline | 364 | active |
| 815-957 | LEVEL 3 COMMUNICATIONS, LLC - IL | ROCKTON | Landline | 360 | active |
| 815-960 | NORTH COUNTY COMMUNICATION CORPORATION - CA | LEAF RIVER | Landline | 364 | active |
| 815-961 | ILLINOIS BELL TEL CO | ROCKFORD | Landline | 360 | active |
| 815-962 | ILLINOIS BELL TEL CO | ROCKFORD | Landline | 360 | active |
| 815-963 | ILLINOIS BELL TEL CO | ROCKFORD | Landline | 360 | active |
| 815-964 | ILLINOIS BELL TEL CO | ROCKFORD | Landline | 360 | active |
| 815-965 | ILLINOIS BELL TEL CO | ROCKFORD | Landline | 360 | active |
| 815-966 | ILLINOIS BELL TEL CO | ROCKFORD | Landline | 360 | active |
| 815-967 | ILLINOIS BELL TEL CO | ROCKFORD | Landline | 360 | active |
| 815-968 | ILLINOIS BELL TEL CO | ROCKFORD | Landline | 360 | active |
| 815-969 | ILLINOIS BELL TEL CO | ROCKFORD | Landline | 360 | active |
| 815-970 | METROPCS, INC. | SYCAMORE | Wireless | 364 | active |
| 815-971 | ILLINOIS BELL TEL CO | ROCKFORD | Landline | 360 | active |
| 815-972 | ILLINOIS BELL TEL CO | ROCKFORD | Landline | 360 | active |
| 815-973 | UNITED STATES CELLULAR - IL | DIXON | Wireless | 364 | active |
| 815-974 | ONVOY, LLC | HEBRON | Landline | 358 | active |
| 815-975 | NEW CINGULAR WIRELESS PCS, LLC - IL | BELVIDERE | Wireless | 360 | active |
| 815-977 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | ROCKFORD | Landline | 360 | active |
| 815-978 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | ROCKFORD | Wireless | 360 | active |
| 815-979 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | ROCKFORD | Wireless | 360 | active |
| 815-980 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | ROCKFORD | Wireless | 360 | active |
| 815-981 | LEVEL 3 COMMUNICATIONS, LLC - IL | DE KALB | Landline | 364 | active |
| 815-982 | MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL | TAMPICO | Landline | 364 | active |
| 815-983 | AMERICAN MESSAGING SERVICES, LLC | ROCKFORD | Landline | 360 | active |
| 815-984 | FRONTIER COMMUNICATIONS OF THE CAROLINAS, INC - IL | WELLINGTON | Landline | 358 | active |
| 815-985 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | ROCKFORD | Wireless | 360 | active |
| 815-986 | PAETEC ITEL, LLC | ROCKFORD | VoIP | 360 | active |
| 815-987 | ILLINOIS BELL TEL CO | ROCKFORD | Landline | 360 | active |
| 815-988 | UNITED STATES CELLULAR - IL | ROCKFORD | Wireless | 360 | active |
| 815-989 | MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL | PROPHETSTN | Landline | 364 | active |
| 815-990 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | FREEPORT | Wireless | 360 | active |
| 815-991 | NEW CINGULAR WIRELESS PCS, LLC - IL | SYCAMORE | Wireless | 364 | active |
| 815-992 | T-MOBILE USA, INC. | STREATOR | Wireless | 366 | active |
| 815-993 | NEW CINGULAR WIRELESS PCS, LLC - IL | OGLESBY | Wireless | 358 | active |
| 815-994 | METROPCS, INC. | DIXON | Wireless | 364 | active |
| 815-995 | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | DE KALB | VoIP | 364 | active |
| 815-996 | CENTURYLINK COMMUNICATIONS, LLC | SAVANNA | VoIP | 364 | active |
| 815-997 | PAETEC ITEL, LLC | ROCKFORD | VoIP | 360 | active |
| 815-998 | FRONTIER NORTH, INC. - IL | ODELL | Landline | 366 | active |
| 815-999 | T-MOBILE USA, INC. | JOLIET | Wireless | 358 | active |
Related Area Codes
Area code 815 shares its geographic region with the following overlay area codes: