Reference Data
Area Code Directory
Area Code 773 — Chicago, Elgin, Riverdale, Illinois

Area Code 773 — Chicago, Elgin, Riverdale, Illinois

Active

Data last updated: March 10, 2026

State
Illinois
Country
US
Timezone
America/Chicago
Assigned
February 2, 2001
Exchanges (NXX)
786
Carriers
22
Rate Centers
11
Overlay
Yes — 872

Top Carriers

Carrier OCN NXX Count
ILLINOIS BELL TEL CO 9329 257
T-MOBILE USA, INC. 6529 166
NEW CINGULAR WIRELESS PCS, LLC - IL 6534 84
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 59
MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 38
LEVEL 3 COMMUNICATIONS, LLC - IL 6115 36
PAETEC ITEL, LLC 829J 33
TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 23
ONVOY, LLC 224C 15
SPOK, INC. 6630 13

Rate Centers

CHICGOZN02 CHICGOZN01 CHICGOZN03 CHICGOZN07 CHICGOZN10 CHICGOZN09 CHICGOZN06 CHICGOZN04 CHICGOZN08 CHICGOZN05 CHICGOZN11

Exchange Listings (NXX)

NPA-NXX Carrier Rate Center Type LATA Status
773-200 FIVE9, INC. CHICGOZN02 VoIP 358 active
773-201 SPOK, INC. CHICGOZN01 Landline 358 active
773-202 ILLINOIS BELL TEL CO CHICGOZN03 Landline 358 active
773-203 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN01 Wireless 358 active
773-204 TELEPORT COMMUNICATIONS AMERICA, LLC - IL CHICGOZN07 VoIP 358 active
773-205 ILLINOIS BELL TEL CO CHICGOZN03 Landline 358 active
773-206 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN01 Wireless 358 active
773-207 ONVOY, LLC CHICGOZN10 Landline 358 active
773-208 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN01 Wireless 358 active
773-209 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-210 ILLINOIS BELL TEL CO CHICGOZN01 Landline 358 active
773-212 SPOK, INC. CHICGOZN03 Landline 358 active
773-213 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN01 Wireless 358 active
773-214 SPOK, INC. CHICGOZN01 Landline 358 active
773-215 SPOK, INC. CHICGOZN01 Landline 358 active
773-216 T-MOBILE USA, INC. CHICGOZN01 Wireless 358 active
773-217 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN09 Wireless 358 active
773-218 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN01 Wireless 358 active
773-219 T-MOBILE USA, INC. CHICGOZN07 Wireless 358 active
773-220 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-221 ILLINOIS BELL TEL CO CHICGOZN09 Landline 358 active
773-222 SPOK, INC. CHICGOZN01 Landline 358 active
773-223 SPOK, INC. CHICGOZN06 Landline 358 active
773-224 ILLINOIS BELL TEL CO CHICGOZN07 Landline 358 active
773-225 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-226 T-MOBILE USA, INC. CHICGOZN10 Wireless 358 active
773-227 ILLINOIS BELL TEL CO CHICGOZN04 Landline 358 active
773-228 SPOK, INC. CHICGOZN01 Landline 358 active
773-229 ILLINOIS BELL TEL CO CHICGOZN08 Landline 358 active
773-230 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN03 Wireless 358 active
773-231 LEVEL 3 COMMUNICATIONS, LLC - IL CHICGOZN07 Landline 358 active
773-232 ONVOY, LLC CHICGOZN10 Landline 358 active
773-233 ILLINOIS BELL TEL CO CHICGOZN10 Landline 358 active
773-234 BANDWIDTH.COM CLEC, LLC - IL CHICGOZN06 VoIP 358 active
773-235 ILLINOIS BELL TEL CO CHICGOZN04 Landline 358 active
773-236 T-MOBILE USA, INC. CHICGOZN07 Wireless 358 active
773-237 ILLINOIS BELL TEL CO CHICGOZN05 Landline 358 active
773-238 ILLINOIS BELL TEL CO CHICGOZN10 Landline 358 active
773-239 ILLINOIS BELL TEL CO CHICGOZN10 Landline 358 active
773-240 T-MOBILE USA, INC. CHICGOZN10 Wireless 358 active
773-241 ILLINOIS BELL TEL CO CHICGOZN07 Landline 358 active
773-242 ILLINOIS BELL TEL CO CHICGOZN06 Landline 358 active
773-243 MCIMETRO ACCESS TRANSMISSION SERVICES LLC CHICGOZN03 Landline 358 active
773-244 ILLINOIS BELL TEL CO CHICGOZN04 Landline 358 active
773-245 BANDWIDTH.COM CLEC, LLC - IL CHICGOZN08 VoIP 358 active
773-246 INDIANA PAGING NETWORK, INC. CHICGOZN04 Landline 358 active
773-247 ILLINOIS BELL TEL CO CHICGOZN06 Landline 358 active
773-248 ILLINOIS BELL TEL CO CHICGOZN04 Landline 358 active
773-249 LEVEL 3 COMMUNICATIONS, LLC - IL CHICGOZN11 Landline 358 active
773-250 MCIMETRO ACCESS TRANSMISSION SERVICES LLC CHICGOZN02 Landline 358 active
773-251 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN03 Wireless 358 active
773-252 ILLINOIS BELL TEL CO CHICGOZN04 Landline 358 active
773-253 TELEPORT COMMUNICATIONS AMERICA, LLC - IL CHICGOZN10 Landline 358 active
773-254 ILLINOIS BELL TEL CO CHICGOZN06 Landline 358 active
773-255 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN03 Wireless 358 active
773-256 ILLINOIS BELL TEL CO CHICGOZN07 Landline 358 active
773-257 ILLINOIS BELL TEL CO CHICGOZN06 Landline 358 active
773-258 SPOK, INC. CHICGOZN01 Landline 358 active
773-259 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN01 Wireless 358 active
773-260 ILLINOIS BELL TEL CO CHICGOZN10 Landline 358 active
773-261 ILLINOIS BELL TEL CO CHICGOZN05 Landline 358 active
773-262 ILLINOIS BELL TEL CO CHICGOZN02 Landline 358 active
773-263 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-264 ILLINOIS BELL TEL CO CHICGOZN10 Landline 358 active
773-265 ILLINOIS BELL TEL CO CHICGOZN06 Landline 358 active
773-266 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN01 Wireless 358 active
773-267 ILLINOIS BELL TEL CO CHICGOZN02 Landline 358 active
773-268 ILLINOIS BELL TEL CO CHICGOZN07 Landline 358 active
773-269 TELEPORT COMMUNICATIONS AMERICA, LLC - IL CHICGOZN04 VoIP 358 active
773-270 METROPCS, INC. CHICGOZN04 Wireless 358 active
773-271 ILLINOIS BELL TEL CO CHICGOZN02 Landline 358 active
773-272 MCIMETRO ACCESS TRANSMISSION SERVICES LLC CHICGOZN03 Landline 358 active
773-273 ILLINOIS BELL TEL CO CHICGOZN02 Landline 358 active
773-274 ILLINOIS BELL TEL CO CHICGOZN02 Landline 358 active
773-275 ILLINOIS BELL TEL CO CHICGOZN02 Landline 358 active
773-276 ILLINOIS BELL TEL CO CHICGOZN04 Landline 358 active
773-277 ILLINOIS BELL TEL CO CHICGOZN06 Landline 358 active
773-278 ILLINOIS BELL TEL CO CHICGOZN04 Landline 358 active
773-279 ILLINOIS BELL TEL CO CHICGOZN02 Landline 358 active
773-280 T-MOBILE USA, INC. CHICGOZN06 Wireless 358 active
773-281 ILLINOIS BELL TEL CO CHICGOZN04 Landline 358 active
773-282 ILLINOIS BELL TEL CO CHICGOZN03 Landline 358 active
773-283 ILLINOIS BELL TEL CO CHICGOZN03 Landline 358 active
773-284 ILLINOIS BELL TEL CO CHICGOZN08 Landline 358 active
773-285 ILLINOIS BELL TEL CO CHICGOZN07 Landline 358 active
773-286 ILLINOIS BELL TEL CO CHICGOZN03 Landline 358 active
773-287 ILLINOIS BELL TEL CO CHICGOZN05 Landline 358 active
773-288 ILLINOIS BELL TEL CO CHICGOZN07 Landline 358 active
773-289 MCIMETRO ACCESS TRANSMISSION SERVICES LLC CHICGOZN04 Landline 358 active
773-290 LEVEL 3 COMMUNICATIONS, LLC - IL CHICGOZN02 Landline 358 active
773-291 ILLINOIS BELL TEL CO CHICGOZN10 Landline 358 active
773-292 ILLINOIS BELL TEL CO CHICGOZN04 Landline 358 active
773-293 ILLINOIS BELL TEL CO CHICGOZN02 Landline 358 active
773-294 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN03 Wireless 358 active
773-295 MCIMETRO ACCESS TRANSMISSION SERVICES LLC CHICGOZN05 Landline 358 active
773-296 ILLINOIS BELL TEL CO CHICGOZN04 Landline 358 active
773-297 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-298 ILLINOIS BELL TEL CO CHICGOZN10 Landline 358 active
773-299 MCIMETRO ACCESS TRANSMISSION SERVICES LLC CHICGOZN06 Landline 358 active
773-300 ONVOY, LLC CHICGOZN05 Landline 358 active
773-301 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-302 T-MOBILE USA, INC. CHICGOZN02 Wireless 358 active
773-303 MCIMETRO ACCESS TRANSMISSION SERVICES LLC CHICGOZN02 Landline 358 active
773-304 MCIMETRO ACCESS TRANSMISSION SERVICES LLC CHICGOZN03 Landline 358 active
773-305 MCIMETRO ACCESS TRANSMISSION SERVICES LLC CHICGOZN04 Landline 358 active
773-306 TELEPORT COMMUNICATIONS AMERICA, LLC - IL CHICGOZN08 VoIP 358 active
773-307 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN01 Wireless 358 active
773-308 FIRST COMMUNICATIONS, LLC CHICGOZN03 VoIP 358 active
773-309 PAETEC ITEL, LLC CHICGOZN05 VoIP 358 active
773-310 T-MOBILE USA, INC. CHICGOZN10 Wireless 358 active
773-312 T-MOBILE USA, INC. CHICGOZN02 Wireless 358 active
773-313 MCIMETRO ACCESS TRANSMISSION SERVICES LLC CHICGOZN02 Landline 358 active
773-314 MCIMETRO ACCESS TRANSMISSION SERVICES LLC CHICGOZN03 Landline 358 active
773-315 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN01 Wireless 358 active
773-316 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN01 Wireless 358 active
773-317 T-MOBILE USA, INC. CHICGOZN01 Wireless 358 active
773-318 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN03 Wireless 358 active
773-319 T-MOBILE USA, INC. CHICGOZN10 Wireless 358 active
773-320 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN01 Wireless 358 active
773-321 LEVEL 3 COMMUNICATIONS, LLC - IL CHICGOZN06 Landline 358 active
773-322 T-MOBILE USA, INC. CHICGOZN07 Wireless 358 active
773-323 AMERICAN MESSAGING SERVICES, LLC CHICGOZN02 Landline 358 active
773-324 ILLINOIS BELL TEL CO CHICGOZN07 Landline 358 active
773-325 ILLINOIS BELL TEL CO CHICGOZN04 Landline 358 active
773-326 LEVEL 3 COMMUNICATIONS, LLC - IL CHICGOZN07 Landline 358 active
773-327 ILLINOIS BELL TEL CO CHICGOZN04 Landline 358 active
773-328 FIRST COMMUNICATIONS, LLC CHICGOZN04 VoIP 358 active
773-329 TELEPORT COMMUNICATIONS AMERICA, LLC - IL CHICGOZN03 VoIP 358 active
773-330 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN01 Wireless 358 active
773-331 T-MOBILE USA, INC. CHICGOZN03 Landline 358 active
773-332 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN03 Wireless 358 active
773-333 AMERICAN MESSAGING SERVICES, LLC CHICGOZN02 Landline 358 active
773-334 ILLINOIS BELL TEL CO CHICGOZN02 Landline 358 active
773-335 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN09 Wireless 358 active
773-336 FIRST COMMUNICATIONS, LLC CHICGOZN09 VoIP 358 active
773-337 MCIMETRO ACCESS TRANSMISSION SERVICES LLC CHICGOZN11 Landline 358 active
773-338 ILLINOIS BELL TEL CO CHICGOZN02 Landline 358 active
773-339 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN01 Wireless 358 active
773-340 ONVOY, LLC CHICGOZN08 Landline 358 active
773-341 FIRST COMMUNICATIONS, LLC CHICGOZN10 VoIP 358 active
773-342 ILLINOIS BELL TEL CO CHICGOZN04 Landline 358 active
773-343 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN01 Wireless 358 active
773-344 MCIMETRO ACCESS TRANSMISSION SERVICES LLC CHICGOZN10 Landline 358 active
773-345 MCIMETRO ACCESS TRANSMISSION SERVICES LLC CHICGOZN05 Landline 358 active
773-346 MCIMETRO ACCESS TRANSMISSION SERVICES LLC CHICGOZN06 Landline 358 active
773-347 MCIMETRO ACCESS TRANSMISSION SERVICES LLC CHICGOZN07 Landline 358 active
773-348 ILLINOIS BELL TEL CO CHICGOZN04 Landline 358 active
773-349 MCIMETRO ACCESS TRANSMISSION SERVICES LLC CHICGOZN08 Landline 358 active
773-350 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN01 Wireless 358 active
773-351 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN01 Wireless 358 active
773-352 ONVOY, LLC CHICGOZN03 Landline 358 active
773-353 LEVEL 3 COMMUNICATIONS, LLC - IL CHICGOZN03 Landline 358 active
773-354 T-MOBILE USA, INC. CHICGOZN01 Wireless 358 active
773-355 PAETEC ITEL, LLC CHICGOZN03 VoIP 358 active
773-356 ILLINOIS BELL TEL CO CHICGOZN09 Landline 358 active
773-357 FIRST COMMUNICATIONS, LLC CHICGOZN11 VoIP 358 active
773-358 MCIMETRO ACCESS TRANSMISSION SERVICES LLC CHICGOZN07 Landline 358 active
773-359 MCIMETRO ACCESS TRANSMISSION SERVICES LLC CHICGOZN09 Landline 358 active
773-360 LEVEL 3 COMMUNICATIONS, LLC - IL CHICGOZN04 Landline 358 active
773-361 ILLINOIS BELL TEL CO CHICGOZN07 Landline 358 active
773-362 PAETEC ITEL, LLC CHICGOZN08 VoIP 358 active
773-363 ILLINOIS BELL TEL CO CHICGOZN07 Landline 358 active
773-364 PAETEC ITEL, LLC CHICGOZN09 VoIP 358 active
773-365 MCIMETRO ACCESS TRANSMISSION SERVICES LLC CHICGOZN04 Landline 358 active
773-366 T-MOBILE USA, INC. CHICGOZN10 Wireless 358 active
773-367 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-368 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-369 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN01 Wireless 358 active
773-370 T-MOBILE USA, INC. CHICGOZN01 Wireless 358 active
773-371 ILLINOIS BELL TEL CO CHICGOZN07 Landline 358 active
773-372 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN03 Wireless 358 active
773-373 ILLINOIS BELL TEL CO CHICGOZN07 Landline 358 active
773-374 ILLINOIS BELL TEL CO CHICGOZN09 Landline 358 active
773-375 ILLINOIS BELL TEL CO CHICGOZN09 Landline 358 active
773-376 ILLINOIS BELL TEL CO CHICGOZN06 Landline 358 active
773-377 TELEPORT COMMUNICATIONS AMERICA, LLC - IL CHICGOZN11 Landline 358 active
773-378 ILLINOIS BELL TEL CO CHICGOZN05 Landline 358 active
773-379 ILLINOIS BELL TEL CO CHICGOZN05 Landline 358 active
773-380 ILLINOIS BELL TEL CO CHICGOZN03 Landline 358 active
773-381 ILLINOIS BELL TEL CO CHICGOZN02 Landline 358 active
773-382 PAETEC ITEL, LLC CHICGOZN09 VoIP 358 active
773-383 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN03 Wireless 358 active
773-384 ILLINOIS BELL TEL CO CHICGOZN04 Landline 358 active
773-385 ILLINOIS BELL TEL CO CHICGOZN05 Landline 358 active
773-386 T-MOBILE USA, INC. CHICGOZN01 Wireless 358 active
773-387 T-MOBILE USA, INC. CHICGOZN10 Wireless 358 active
773-388 ILLINOIS BELL TEL CO CHICGOZN04 Landline 358 active
773-389 BANDWIDTH.COM CLEC, LLC - IL CHICGOZN09 VoIP 358 active
773-390 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN01 Wireless 358 active
773-391 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN01 Wireless 358 active
773-392 T-MOBILE USA, INC. CHICGOZN01 Wireless 358 active
773-393 SPOK, INC. CHICGOZN01 Landline 358 active
773-394 ILLINOIS BELL TEL CO CHICGOZN04 Landline 358 active
773-395 ILLINOIS BELL TEL CO CHICGOZN04 Landline 358 active
773-396 PAETEC ITEL, LLC CHICGOZN10 VoIP 358 active
773-397 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN03 Wireless 358 active
773-398 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-399 ILLINOIS BELL TEL CO CHICGOZN03 Landline 358 active
773-400 AMERICAN MESSAGING SERVICES, LLC CHICGOZN02 Landline 358 active
773-401 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN01 Wireless 358 active
773-402 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN01 Wireless 358 active
773-403 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-404 ILLINOIS BELL TEL CO CHICGOZN04 Landline 358 active
773-405 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN01 Wireless 358 active
773-406 T-MOBILE USA, INC. CHICGOZN07 Wireless 358 active
773-407 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-408 T-MOBILE USA, INC. CHICGOZN06 Wireless 358 active
773-409 TELEPORT COMMUNICATIONS AMERICA, LLC - IL CHICGOZN02 VoIP 358 active
773-410 T-MOBILE USA, INC. CHICGOZN02 Wireless 358 active
773-412 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-413 TELEPORT COMMUNICATIONS AMERICA, LLC - IL CHICGOZN05 VoIP 358 active
773-414 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-415 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN01 Wireless 358 active
773-416 T-MOBILE USA, INC. CHICGOZN01 Wireless 358 active
773-417 COMCAST IP PHONE, LLC CHICGOZN05 VoIP 358 active
773-418 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-419 T-MOBILE USA, INC. CHICGOZN01 Wireless 358 active
773-420 TELEPORT COMMUNICATIONS AMERICA, LLC - IL CHICGOZN07 Landline 358 active
773-421 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN01 Wireless 358 active
773-422 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN01 Wireless 358 active
773-423 MCIMETRO ACCESS TRANSMISSION SERVICES LLC CHICGOZN02 Landline 358 active
773-424 TELEPORT COMMUNICATIONS AMERICA, LLC - IL CHICGOZN08 Landline 358 active
773-425 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-426 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-427 ILLINOIS BELL TEL CO CHICGOZN03 Landline 358 active
773-428 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN01 Wireless 358 active
773-429 ILLINOIS BELL TEL CO CHICGOZN10 Landline 358 active
773-430 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-431 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN03 Wireless 358 active
773-432 FIRST COMMUNICATIONS, LLC CHICGOZN08 VoIP 358 active
773-433 T-MOBILE USA, INC. CHICGOZN02 Wireless 358 active
773-434 ILLINOIS BELL TEL CO CHICGOZN08 Landline 358 active
773-435 MCIMETRO ACCESS TRANSMISSION SERVICES LLC CHICGOZN04 Landline 358 active
773-436 ILLINOIS BELL TEL CO CHICGOZN08 Landline 358 active
773-437 TELEPORT COMMUNICATIONS AMERICA, LLC - IL CHICGOZN09 Landline 358 active
773-438 SPOK, INC. CHICGOZN01 Landline 358 active
773-439 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL CHICGOZN03 Landline 358 active
773-440 METROPCS, INC. CHICGOZN10 Wireless 358 active
773-441 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN03 Wireless 358 active
773-442 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL CHICGOZN02 Landline 358 active
773-443 T-MOBILE USA, INC. CHICGOZN01 Wireless 358 active
773-444 ILLINOIS BELL TEL CO CHICGOZN03 Landline 358 active
773-445 ILLINOIS BELL TEL CO CHICGOZN10 Landline 358 active
773-446 LEVEL 3 COMMUNICATIONS, LLC - IL CHICGOZN06 Landline 358 active
773-447 T-MOBILE USA, INC. CHICGOZN01 Wireless 358 active
773-448 ONVOY, LLC CHICGOZN07 Landline 358 active
773-449 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL CHICGOZN09 Landline 358 active
773-450 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN01 Wireless 358 active
773-451 ILLINOIS BELL TEL CO CHICGOZN07 Landline 358 active
773-452 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN01 Wireless 358 active
773-453 MCIMETRO ACCESS TRANSMISSION SERVICES LLC CHICGOZN11 Landline 358 active
773-454 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-455 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL CHICGOZN11 Landline 358 active
773-456 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN03 Wireless 358 active
773-457 T-MOBILE USA, INC. CHICGOZN07 Wireless 358 active
773-458 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL CHICGOZN03 Landline 358 active
773-459 T-MOBILE USA, INC. CHICGOZN01 Wireless 358 active
773-460 Landline 358 active
773-461 T-MOBILE USA, INC. CHICGOZN02 Wireless 358 active
773-462 ILLINOIS BELL TEL CO CHICGOZN11 Landline 358 active
773-463 ILLINOIS BELL TEL CO CHICGOZN02 Landline 358 active
773-464 SPOK, INC. CHICGOZN01 Landline 358 active
773-465 ILLINOIS BELL TEL CO CHICGOZN02 Landline 358 active
773-466 MCIMETRO ACCESS TRANSMISSION SERVICES LLC CHICGOZN05 Landline 358 active
773-467 ILLINOIS BELL TEL CO CHICGOZN03 Landline 358 active
773-468 ILLINOIS BELL TEL CO CHICGOZN10 Landline 358 active
773-469 T-MOBILE USA, INC. CHICGOZN01 Wireless 358 active
773-470 MCIMETRO ACCESS TRANSMISSION SERVICES LLC CHICGOZN08 Landline 358 active
773-471 ILLINOIS BELL TEL CO CHICGOZN08 Landline 358 active
773-472 ILLINOIS BELL TEL CO CHICGOZN04 Landline 358 active
773-473 ILLINOIS BELL TEL CO CHICGOZN05 Landline 358 active
773-474 PAETEC ITEL, LLC CHICGOZN10 VoIP 358 active
773-475 TELEPORT COMMUNICATIONS AMERICA, LLC - IL CHICGOZN06 Landline 358 active
773-476 ILLINOIS BELL TEL CO CHICGOZN08 Landline 358 active
773-477 ILLINOIS BELL TEL CO CHICGOZN04 Landline 358 active
773-478 ILLINOIS BELL TEL CO CHICGOZN02 Landline 358 active
773-479 ILLINOIS BELL TEL CO CHICGOZN05 Landline 358 active
773-480 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN01 Wireless 358 active
773-481 ILLINOIS BELL TEL CO CHICGOZN03 Landline 358 active
773-482 PAETEC ITEL, LLC CHICGOZN11 VoIP 358 active
773-483 ILLINOIS BELL TEL CO CHICGOZN07 Landline 358 active
773-484 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN07 Wireless 358 active
773-485 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN01 Wireless 358 active
773-486 ILLINOIS BELL TEL CO CHICGOZN04 Landline 358 active
773-487 ILLINOIS BELL TEL CO CHICGOZN07 Landline 358 active
773-488 ILLINOIS BELL TEL CO CHICGOZN07 Landline 358 active
773-489 ILLINOIS BELL TEL CO CHICGOZN04 Landline 358 active
773-490 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN03 Wireless 358 active
773-491 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-492 BANDWIDTH.COM CLEC, LLC - IL CHICGOZN08 VoIP 358 active
773-493 ILLINOIS BELL TEL CO CHICGOZN07 Landline 358 active
773-494 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-495 T-MOBILE USA, INC. CHICGOZN01 Wireless 358 active
773-496 PAETEC ITEL, LLC CHICGOZN07 VoIP 358 active
773-497 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN01 Wireless 358 active
773-498 TELEPORT COMMUNICATIONS AMERICA, LLC - IL CHICGOZN08 Landline 358 active
773-499 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-500 ONVOY, LLC CHICGOZN10 Landline 358 active
773-501 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-502 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN01 Wireless 358 active
773-503 T-MOBILE USA, INC. CHICGOZN10 Wireless 358 active
773-504 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN01 Wireless 358 active
773-505 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN01 Wireless 358 active
773-506 ILLINOIS BELL TEL CO CHICGOZN02 Landline 358 active
773-507 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-508 ILLINOIS BELL TEL CO CHICGOZN02 Landline 358 active
773-509 ILLINOIS BELL TEL CO CHICGOZN02 Landline 358 active
773-510 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-512 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-513 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN01 Wireless 358 active
773-514 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN09 Wireless 358 active
773-515 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN01 Wireless 358 active
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773-517 T-MOBILE USA, INC. CHICGOZN01 Wireless 358 active
773-518 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN01 Wireless 358 active
773-519 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN01 Wireless 358 active
773-520 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN01 Wireless 358 active
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773-522 ILLINOIS BELL TEL CO CHICGOZN06 Landline 358 active
773-523 ILLINOIS BELL TEL CO CHICGOZN06 Landline 358 active
773-524 LEVEL 3 COMMUNICATIONS, LLC - IL CHICGOZN04 Landline 358 active
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773-526 PAETEC ITEL, LLC CHICGOZN08 VoIP 358 active
773-527 LEVEL 3 COMMUNICATIONS, LLC - IL CHICGOZN03 Landline 358 active
773-528 ILLINOIS BELL TEL CO CHICGOZN04 Landline 358 active
773-529 ILLINOIS BELL TEL CO CHICGOZN04 Landline 358 active
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773-534 ILLINOIS BELL TEL CO CHICGOZN06 Landline 358 active
773-535 ILLINOIS BELL TEL CO CHICGOZN06 Landline 358 active
773-536 ILLINOIS BELL TEL CO CHICGOZN07 Landline 358 active
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773-538 ILLINOIS BELL TEL CO CHICGOZN07 Landline 358 active
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773-540 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-541 LEVEL 3 COMMUNICATIONS, LLC - IL CHICGOZN02 Landline 358 active
773-542 ILLINOIS BELL TEL CO CHICGOZN06 Landline 358 active
773-543 T-MOBILE USA, INC. CHICGOZN04 Wireless 358 active
773-544 T-MOBILE USA, INC. CHICGOZN01 Wireless 358 active
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773-546 ILLINOIS BELL TEL CO CHICGOZN10 Landline 358 active
773-547 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN01 Wireless 358 active
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773-549 ILLINOIS BELL TEL CO CHICGOZN04 Landline 358 active
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773-551 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN03 Wireless 358 active
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773-554 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
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773-558 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN03 Wireless 358 active
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773-560 TELEPORT COMMUNICATIONS AMERICA, LLC - IL CHICGOZN06 VoIP 358 active
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773-578 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN01 Wireless 358 active
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773-580 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN03 Wireless 358 active
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773-593 T-MOBILE USA, INC. CHICGOZN01 Wireless 358 active
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773-613 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN01 Wireless 358 active
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773-649 PAETEC ITEL, LLC CHICGOZN02 VoIP 358 active
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773-675 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN07 Wireless 358 active
773-676 TELEPORT COMMUNICATIONS AMERICA, LLC - IL CHICGOZN05 Landline 358 active
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773-706 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN03 Wireless 358 active
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773-708 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN10 Wireless 358 active
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773-717 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN07 Wireless 358 active
773-718 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN01 Wireless 358 active
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773-720 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN01 Wireless 358 active
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773-724 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN03 Wireless 358 active
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773-735 ILLINOIS BELL TEL CO CHICGOZN08 Landline 358 active
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773-777 ILLINOIS BELL TEL CO CHICGOZN03 Landline 358 active
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773-840 PAETEC ITEL, LLC CHICGOZN10 VoIP 358 active
773-841 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN01 Wireless 358 active
773-842 T-MOBILE USA, INC. CHICGOZN01 Wireless 358 active
773-843 ILLINOIS BELL TEL CO CHICGOZN06 Landline 358 active
773-844 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN03 Wireless 358 active
773-845 AMERICAN MESSAGING SERVICES, LLC CHICGOZN01 Landline 358 active
773-846 ILLINOIS BELL TEL CO CHICGOZN07 Landline 358 active
773-847 ILLINOIS BELL TEL CO CHICGOZN06 Landline 358 active
773-848 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN01 Wireless 358 active
773-849 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN03 Wireless 358 active
773-850 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN03 Wireless 358 active
773-851 T-MOBILE USA, INC. CHICGOZN07 Wireless 358 active
773-852 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN01 Wireless 358 active
773-853 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-854 ILLINOIS BELL TEL CO CHICGOZN05 Landline 358 active
773-855 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL CHICGOZN07 Landline 358 active
773-856 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL CHICGOZN02 Landline 358 active
773-857 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL CHICGOZN04 Landline 358 active
773-858 T-MOBILE USA, INC. CHICGOZN02 Wireless 358 active
773-859 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN01 Wireless 358 active
773-860 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN01 Wireless 358 active
773-861 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN03 Wireless 358 active
773-862 ILLINOIS BELL TEL CO CHICGOZN04 Landline 358 active
773-863 ILLINOIS BELL TEL CO CHICGOZN08 Landline 358 active
773-864 ILLINOIS BELL TEL CO CHICGOZN03 Landline 358 active
773-865 T-MOBILE USA, INC. CHICGOZN02 Wireless 358 active
773-866 ILLINOIS BELL TEL CO CHICGOZN02 Landline 358 active
773-867 ILLINOIS BELL TEL CO CHICGOZN03 Landline 358 active
773-868 ILLINOIS BELL TEL CO CHICGOZN04 Landline 358 active
773-869 ILLINOIS BELL TEL CO CHICGOZN06 Landline 358 active
773-870 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN03 Wireless 358 active
773-871 ILLINOIS BELL TEL CO CHICGOZN04 Landline 358 active
773-872 ONVOY, LLC CHICGOZN04 Landline 358 active
773-873 ILLINOIS BELL TEL CO CHICGOZN07 Landline 358 active
773-874 ILLINOIS BELL TEL CO CHICGOZN07 Landline 358 active
773-875 T-MOBILE USA, INC. CHICGOZN08 Wireless 358 active
773-876 METROPCS, INC. CHICGOZN03 Wireless 358 active
773-877 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-878 ILLINOIS BELL TEL CO CHICGOZN02 Landline 358 active
773-879 T-MOBILE USA, INC. CHICGOZN01 Wireless 358 active
773-880 ILLINOIS BELL TEL CO CHICGOZN04 Landline 358 active
773-881 ILLINOIS BELL TEL CO CHICGOZN10 Landline 358 active
773-882 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN01 Wireless 358 active
773-883 ILLINOIS BELL TEL CO CHICGOZN04 Landline 358 active
773-884 ILLINOIS BELL TEL CO CHICGOZN08 Landline 358 active
773-885 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-886 T-MOBILE USA, INC. CHICGOZN07 Wireless 358 active
773-887 MCIMETRO ACCESS TRANSMISSION SERVICES LLC CHICGOZN05 Landline 358 active
773-888 BANDWIDTH.COM CLEC, LLC - IL CHICGOZN04 VoIP 358 active
773-889 ILLINOIS BELL TEL CO CHICGOZN05 Landline 358 active
773-890 ILLINOIS BELL TEL CO CHICGOZN06 Landline 358 active
773-891 COMCAST IP PHONE, LLC CHICGOZN07 VoIP 358 active
773-892 ILLINOIS BELL TEL CO CHICGOZN07 Landline 358 active
773-893 MCIMETRO ACCESS TRANSMISSION SERVICES LLC CHICGOZN06 Landline 358 active
773-894 ILLINOIS BELL TEL CO CHICGOZN11 Landline 358 active
773-895 T-MOBILE USA, INC. CHICGOZN01 Wireless 358 active
773-896 MCIMETRO ACCESS TRANSMISSION SERVICES LLC CHICGOZN07 Landline 358 active
773-897 PEERLESS NETWORK OF ILLINOIS, LLC - IL CHICGOZN02 Landline 358 active
773-898 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN01 Wireless 358 active
773-899 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN03 Wireless 358 active
773-900 FRACTEL, LLC CHICGOZN03 VoIP 358 active
773-901 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN10 Wireless 358 active
773-902 LEVEL 3 COMMUNICATIONS, LLC - IL CHICGOZN09 Landline 358 active
773-903 ONVOY, LLC CHICGOZN06 Landline 358 active
773-904 LEVEL 3 COMMUNICATIONS, LLC - IL CHICGOZN04 Landline 358 active
773-905 LEVEL 3 COMMUNICATIONS, LLC - IL CHICGOZN10 Landline 358 active
773-906 LEVEL 3 COMMUNICATIONS, LLC - IL CHICGOZN11 Landline 358 active
773-907 ILLINOIS BELL TEL CO CHICGOZN02 Landline 358 active
773-908 T-MOBILE USA, INC. CHICGOZN01 Wireless 358 active
773-909 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN01 Wireless 358 active
773-910 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN01 Wireless 358 active
773-912 LEVEL 3 COMMUNICATIONS, LLC - IL CHICGOZN08 Landline 358 active
773-913 LEVEL 3 COMMUNICATIONS, LLC - IL CHICGOZN09 Landline 358 active
773-914 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN01 Wireless 358 active
773-915 LEVEL 3 COMMUNICATIONS, LLC - IL CHICGOZN07 Landline 358 active
773-916 T-MOBILE USA, INC. CHICGOZN06 Wireless 358 active
773-917 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL CHICGOZN11 Landline 358 active
773-918 ILLINOIS BELL TEL CO CHICGOZN08 Landline 358 active
773-919 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN01 Wireless 358 active
773-920 LEVEL 3 COMMUNICATIONS, LLC - IL CHICGOZN06 Landline 358 active
773-921 ILLINOIS BELL TEL CO CHICGOZN05 Landline 358 active
773-922 LEVEL 3 COMMUNICATIONS, LLC - IL CHICGOZN05 Landline 358 active
773-923 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN03 Wireless 358 active
773-924 ILLINOIS BELL TEL CO CHICGOZN07 Landline 358 active
773-925 ILLINOIS BELL TEL CO CHICGOZN08 Landline 358 active
773-926 ILLINOIS BELL TEL CO CHICGOZN07 Landline 358 active
773-927 ILLINOIS BELL TEL CO CHICGOZN06 Landline 358 active
773-928 ILLINOIS BELL TEL CO CHICGOZN10 Landline 358 active
773-929 ILLINOIS BELL TEL CO CHICGOZN04 Landline 358 active
773-930 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-931 T-MOBILE USA, INC. CHICGOZN10 Wireless 358 active
773-932 LEVEL 3 COMMUNICATIONS, LLC - IL CHICGOZN03 Landline 358 active
773-933 ILLINOIS BELL TEL CO CHICGOZN09 Landline 358 active
773-934 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-935 ILLINOIS BELL TEL CO CHICGOZN04 Landline 358 active
773-936 T-MOBILE USA, INC. CHICGOZN07 Wireless 358 active
773-937 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL CHICGOZN08 Landline 358 active
773-938 LEVEL 3 COMMUNICATIONS, LLC - IL CHICGOZN04 Landline 358 active
773-939 T-MOBILE USA, INC. CHICGOZN08 Wireless 358 active
773-940 COMCAST IP PHONE, LLC CHICGOZN06 VoIP 358 active
773-941 T-MOBILE USA, INC. CHICGOZN10 Wireless 358 active
773-942 LEVEL 3 COMMUNICATIONS, LLC - IL CHICGOZN02 Landline 358 active
773-943 T-MOBILE USA, INC. CHICGOZN02 Wireless 358 active
773-944 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL CHICGOZN02 Landline 358 active
773-945 PEERLESS NETWORK OF ILLINOIS, LLC - IL CHICGOZN05 Landline 358 active
773-946 LEVEL 3 COMMUNICATIONS, LLC - IL CHICGOZN10 Landline 358 active
773-947 ILLINOIS BELL TEL CO CHICGOZN07 Landline 358 active
773-948 MCIMETRO ACCESS TRANSMISSION SERVICES LLC CHICGOZN08 Landline 358 active
773-949 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-951 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN03 Wireless 358 active
773-952 T-MOBILE USA, INC. CHICGOZN07 Wireless 358 active
773-953 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-954 T-MOBILE USA, INC. CHICGOZN10 Wireless 358 active
773-955 ILLINOIS BELL TEL CO CHICGOZN07 Landline 358 active
773-956 T-MOBILE USA, INC. CHICGOZN06 Wireless 358 active
773-957 PAETEC ITEL, LLC CHICGOZN03 VoIP 358 active
773-960 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-961 ILLINOIS BELL TEL CO CHICGOZN02 Landline 358 active
773-962 ILLINOIS BELL TEL CO CHICGOZN07 Landline 358 active
773-963 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-964 T-MOBILE USA, INC. CHICGOZN10 Wireless 358 active
773-965 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL CHICGOZN01 Wireless 358 active
773-966 LEVEL 3 COMMUNICATIONS, LLC - IL CHICGOZN07 Landline 358 active
773-967 MCIMETRO ACCESS TRANSMISSION SERVICES LLC CHICGOZN09 Landline 358 active
773-968 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-969 T-MOBILE USA, INC. CHICGOZN04 Wireless 358 active
773-970 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN10 Wireless 358 active
773-971 T-MOBILE USA, INC. CHICGOZN10 Wireless 358 active
773-972 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN01 Wireless 358 active
773-973 ILLINOIS BELL TEL CO CHICGOZN02 Landline 358 active
773-974 PAETEC ITEL, LLC CHICGOZN11 VoIP 358 active
773-975 ILLINOIS BELL TEL CO CHICGOZN04 Landline 358 active
773-977 PAETEC ITEL, LLC CHICGOZN02 VoIP 358 active
773-978 ILLINOIS BELL TEL CO CHICGOZN09 Landline 358 active
773-979 T-MOBILE USA, INC. CHICGOZN10 Wireless 358 active
773-980 ILLINOIS BELL TEL CO CHICGOZN10 Landline 358 active
773-981 MCIMETRO ACCESS TRANSMISSION SERVICES LLC CHICGOZN10 Landline 358 active
773-982 T-MOBILE USA, INC. CHICGOZN10 Wireless 358 active
773-983 T-MOBILE USA, INC. CHICGOZN10 Wireless 358 active
773-984 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-985 MCIMETRO ACCESS TRANSMISSION SERVICES LLC CHICGOZN11 Landline 358 active
773-986 T-MOBILE USA, INC. CHICGOZN08 Wireless 358 active
773-987 FIRST COMMUNICATIONS, LLC CHICGOZN10 VoIP 358 active
773-988 T-MOBILE USA, INC. CHICGOZN01 Wireless 358 active
773-989 ILLINOIS BELL TEL CO CHICGOZN02 Landline 358 active
773-990 ILLINOIS BELL TEL CO CHICGOZN03 Landline 358 active
773-991 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-992 ILLINOIS BELL TEL CO CHICGOZN03 Landline 358 active
773-993 T-MOBILE USA, INC. CHICGOZN03 Wireless 358 active
773-994 ILLINOIS BELL TEL CO CHICGOZN07 Landline 358 active
773-995 ILLINOIS BELL TEL CO CHICGOZN10 Landline 358 active
773-996 T-MOBILE USA, INC. CHICGOZN08 Wireless 358 active
773-997 T-MOBILE USA, INC. CHICGOZN02 Wireless 358 active
773-998 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN10 Wireless 358 active
773-999 NEW CINGULAR WIRELESS PCS, LLC - IL CHICGOZN05 Wireless 358 active

Area code 773 shares its geographic region with the following overlay area codes:

872