Reference Data
Area Code Directory
Area Code 240 — Washington, Maryland

Area Code 240 — Washington, Beltsville, Frederick, Maryland

Active

Data last updated: March 10, 2026

State
Maryland
Country
US
Timezone
America/New_York
Assigned
January 9, 2001
Exchanges (NXX)
785
Carriers
46
Rate Centers
63
Overlay
Yes — 227, 301

Top Carriers

Carrier OCN NXX Count
OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 117
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 6395 85
NEW CINGULAR WIRELESS PCS, LLC - DC 4036 69
PAETEC ITEL, LLC 829J 63
LEVEL 3 COMMUNICATIONS, LLC - MD 6119 59
ONVOY, LLC - MD 876D 56
VERIZON MARYLAND, INC. 9212 48
MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 46
PEERLESS NETWORK OF MARYLAND, LLC 568G 42
BANDWIDTH.COM CLEC, LLC - MD 071F 34

Rate Centers

WSHNGTNZN2 RIDGE HIGHFIELD HAGERSTOWN WSNGTNZN10 WSNG236Z14 DAMASCS236 LA PLATA INDIANHEAD WALDORF OAKLAND MECHANCSVL FREDERICK NANJEMOY POOLESVL WSNGTNZN11 GAITHERSBG MYERSVILLE WSNG236Z13 HUGHESVL TOMPKINSVL LXTNPKGRML LEONARDTN DAMASCS240 WSNGTNZN16 WSHNGTNZN3 BRANDYWINE WSHNGTNZN6 LAUREL236 GRANTSVL FROSTBURG HANCOCK THURMONT WSNGTNZN12 WSHNGTNZN4 CLEAR SPG WSHNGTNZN5 EMMITSBURG LAUREL238 MCCOOLE ASHTON238 WSNG236Z15 BUCKEYSTN ASHTON236 CUMBERLAND WILLIAMSPT MOUNT AIRY MIDDLETOWN WSNG238Z14 WSNG238Z13 FLINTSTONE FRIENDSVL BITTINGER KEEDYSVL SMITHSBURG KITZMILLER WALKERSVL BRUNSWICK WSNG238Z15 LONACONING WESTERNPT NEW MARKET MT SAVAGE

Exchange Listings (NXX)

NPA-NXX Carrier Rate Center Type LATA Status
240-200 BANDWIDTH.COM CLEC, LLC - MD WSHNGTNZN2 VoIP 236 active
240-201 PEERLESS NETWORK OF MARYLAND, LLC RIDGE Landline 236 active
240-202 ONVOY, LLC - MD HIGHFIELD Landline 240 active
240-203 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC HAGERSTOWN Wireless 240 active
240-204 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD WSHNGTNZN2 Wireless 236 active
240-205 NEW CINGULAR WIRELESS PCS, LLC - DC WSNGTNZN10 Wireless 236 active
240-206 MCIMETRO ACCESS TRANSMISSION SERVICES LLC WSNG236Z14 Landline 236 active
240-207 PAETEC ITEL, LLC DAMASCS236 VoIP 236 active
240-208 PEERLESS NETWORK OF MARYLAND, LLC LA PLATA Landline 236 active
240-209 PEERLESS NETWORK OF MARYLAND, LLC INDIANHEAD Landline 236 active
240-210 NEW CINGULAR WIRELESS PCS, LLC - DC WALDORF Wireless 236 active
240-212 CORE COMMUNICATIONS, INC.- MD OAKLAND Landline 240 active
240-213 PEERLESS NETWORK OF MARYLAND, LLC WALDORF Landline 236 active
240-214 PEERLESS NETWORK OF MARYLAND, LLC MECHANCSVL Landline 236 active
240-215 LEVEL 3 COMMUNICATIONS, LLC - MD FREDERICK Landline 240 active
240-216 METROPCS, INC. WALDORF Wireless 236 active
240-217 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC HAGERSTOWN Wireless 240 active
240-218 PEERLESS NETWORK OF MARYLAND, LLC NANJEMOY Landline 236 active
240-219 PEERLESS NETWORK OF MARYLAND, LLC RIDGE Landline 236 active
240-220 PEERLESS NETWORK OF MARYLAND, LLC POOLESVL Landline 236 active
240-221 VERIZON MARYLAND, INC. WSNGTNZN11 Landline 236 active
240-222 PAETEC ITEL, LLC WALDORF VoIP 236 active
240-223 MCIMETRO ACCESS TRANSMISSION SERVICES LLC WSHNGTNZN2 Landline 236 active
240-224 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD GAITHERSBG Wireless 236 active
240-225 CORE COMMUNICATIONS, INC.- MD FREDERICK Landline 240 active
240-226 ONVOY, LLC - MD OAKLAND Landline 240 active
240-227 NEW CINGULAR WIRELESS PCS, LLC - DC MYERSVILLE Wireless 240 active
240-228 VERIZON MARYLAND, INC. WSNG236Z13 Landline 236 active
240-229 LEVEL 3 COMMUNICATIONS, LLC - MD WALDORF Landline 236 active
240-230 LEVEL 3 COMMUNICATIONS, LLC - MD HUGHESVL Landline 236 active
240-231 CORE COMMUNICATIONS, INC.- MD HAGERSTOWN Landline 240 active
240-232 LEVEL 3 COMMUNICATIONS, LLC - MD WSNG236Z14 Landline 236 active
240-233 TELEPORT COMMUNICATIONS AMERICA, LLC - DC TOMPKINSVL Landline 236 active
240-234 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD WSHNGTNZN2 Wireless 236 active
240-235 PAETEC ITEL, LLC WSHNGTNZN2 VoIP 236 active
240-236 VERIZON MARYLAND, INC. FREDERICK Landline 240 active
240-237 TELEPORT COMMUNICATIONS AMERICA, LLC - DC LXTNPKGRML Landline 236 active
240-238 PAETEC ITEL, LLC WSNGTNZN10 VoIP 236 active
240-239 CORE COMMUNICATIONS, INC.- MD LEONARDTN Landline 236 active
240-240 FRACTEL, LLC DAMASCS240 VoIP 240 active
240-241 STARPOWER COMMUNICATIONS, LLC - MD WSNG236Z13 Landline 236 active
240-242 STARPOWER COMMUNICATIONS, LLC - MD WSNGTNZN11 Landline 236 active
240-243 MCIMETRO ACCESS TRANSMISSION SERVICES LLC GAITHERSBG Landline 236 active
240-244 STARPOWER COMMUNICATIONS, LLC - MD WSNGTNZN16 Landline 236 active
240-245 STARPOWER COMMUNICATIONS, LLC - MD WSNG236Z14 Landline 236 active
240-246 STARPOWER COMMUNICATIONS, LLC - MD GAITHERSBG Landline 236 active
240-247 MCIMETRO ACCESS TRANSMISSION SERVICES LLC WSHNGTNZN3 Landline 236 active
240-248 PEERLESS NETWORK OF MARYLAND, LLC RIDGE Landline 236 active
240-249 TELEPORT COMMUNICATIONS AMERICA, LLC - DC MECHANCSVL Landline 236 active
240-250 PEERLESS NETWORK OF MARYLAND, LLC BRANDYWINE Landline 236 active
240-251 CORE COMMUNICATIONS, INC.- MD HIGHFIELD Landline 240 active
240-252 LEVEL 3 COMMUNICATIONS, LLC - MD GAITHERSBG Landline 236 active
240-253 BANDWIDTH.COM CLEC, LLC - MD WSHNGTNZN6 VoIP 236 active
240-254 TELEPORT COMMUNICATIONS AMERICA, LLC - DC HUGHESVL Landline 236 active
240-255 PEERLESS NETWORK OF MARYLAND, LLC POOLESVL Landline 236 active
240-256 TELEPORT COMMUNICATIONS AMERICA, LLC - DC LEONARDTN Landline 236 active
240-257 TELEPORT COMMUNICATIONS AMERICA, LLC - DC NANJEMOY Landline 236 active
240-258 TELEPORT COMMUNICATIONS AMERICA, LLC - DC RIDGE Landline 236 active
240-259 ONVOY SPECTRUM, LLC HUGHESVL Wireless 236 active
240-260 MCIMETRO ACCESS TRANSMISSION SERVICES LLC WSNG236Z14 Landline 236 active
240-261 ONVOY, LLC - MD GAITHERSBG Landline 236 active
240-262 COMCAST IP PHONE, LLC LXTNPKGRML VoIP 236 active
240-263 NEW CINGULAR WIRELESS PCS, LLC - DC WSHNGTNZN2 Wireless 236 active
240-264 VERIZON MARYLAND, INC. LAUREL236 Landline 236 active
240-265 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN2 Wireless 236 active
240-266 PEERLESS NETWORK OF MARYLAND, LLC WSNG236Z14 Landline 236 active
240-267 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD HAGERSTOWN Wireless 240 active
240-268 MCIMETRO ACCESS TRANSMISSION SERVICES LLC WSNGTNZN10 Landline 236 active
240-269 PEERLESS NETWORK OF MARYLAND, LLC WSNGTNZN16 Landline 236 active
240-270 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD WALDORF Wireless 236 active
240-271 NEW CINGULAR WIRELESS PCS, LLC - DC WSHNGTNZN2 Wireless 236 active
240-272 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN2 Wireless 236 active
240-273 LEVEL 3 COMMUNICATIONS, LLC - MD WSHNGTNZN6 Landline 236 active
240-274 NEW CINGULAR WIRELESS PCS, LLC - DC WSHNGTNZN2 Wireless 236 active
240-275 CORE COMMUNICATIONS, INC.- MD GRANTSVL Landline 240 active
240-276 VERIZON MARYLAND, INC. WSNGTNZN10 Landline 236 active
240-277 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN2 Wireless 236 active
240-278 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD LAUREL236 Wireless 236 active
240-279 CORE COMMUNICATIONS, INC.- MD WALDORF Landline 236 active
240-280 COMCAST IP PHONE, LLC LAUREL236 VoIP 236 active
240-281 NEW CINGULAR WIRELESS PCS, LLC - DC WSHNGTNZN2 Wireless 236 active
240-282 PEERLESS NETWORK OF MARYLAND, LLC MECHANCSVL Landline 236 active
240-283 PAETEC ITEL, LLC WSNGTNZN11 VoIP 236 active
240-284 LEVEL 3 COMMUNICATIONS, LLC - MD FROSTBURG Landline 240 active
240-285 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD FREDERICK Wireless 240 active
240-286 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN2 Wireless 236 active
240-287 CORE COMMUNICATIONS, INC.- MD HANCOCK Landline 240 active
240-288 COMCAST IP PHONE, LLC THURMONT VoIP 240 active
240-289 PAETEC ITEL, LLC WSHNGTNZN6 VoIP 236 active
240-290 MCIMETRO ACCESS TRANSMISSION SERVICES LLC WSNGTNZN11 Landline 236 active
240-291 NEW CINGULAR WIRELESS PCS, LLC - DC HAGERSTOWN Wireless 240 active
240-292 VERIZON MARYLAND, INC. WSNGTNZN11 Landline 236 active
240-293 STARPOWER COMMUNICATIONS, LLC - MD WSNGTNZN12 Landline 236 active
240-294 MCIMETRO ACCESS TRANSMISSION SERVICES LLC LAUREL236 Landline 236 active
240-295 PAETEC ITEL, LLC LAUREL236 VoIP 236 active
240-296 PAETEC ITEL, LLC WSHNGTNZN4 VoIP 236 active
240-297 LEVEL 3 COMMUNICATIONS, LLC - MD WSNG236Z13 Landline 236 active
240-298 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD LEONARDTN Wireless 236 active
240-299 METROPCS, INC. WALDORF Wireless 236 active
240-300 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD WALDORF Wireless 236 active
240-301 ONVOY, LLC - MD CLEAR SPG Landline 240 active
240-302 NEW CINGULAR WIRELESS PCS, LLC - DC LAUREL236 Wireless 236 active
240-303 PAETEC ITEL, LLC WSNGTNZN16 VoIP 236 active
240-304 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN5 Wireless 236 active
240-305 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN3 Wireless 236 active
240-306 MCIMETRO ACCESS TRANSMISSION SERVICES LLC GAITHERSBG Landline 236 active
240-307 BANDWIDTH.COM CLEC, LLC - MD EMMITSBURG VoIP 240 active
240-308 NEW CINGULAR WIRELESS PCS, LLC - DC DAMASCS236 Wireless 236 active
240-309 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD LEONARDTN Wireless 236 active
240-310 USCOC OF CUMBERLAND, INC. DBA UNITED STATES CEL MD HAGERSTOWN Wireless 240 active
240-312 PAETEC ITEL, LLC WSHNGTNZN5 VoIP 236 active
240-313 VERIZON MARYLAND, INC. HAGERSTOWN Landline 240 active
240-314 VERIZON MARYLAND, INC. WSNGTNZN10 Landline 236 active
240-315 VERIZON MARYLAND, INC. FREDERICK Landline 240 active
240-316 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN2 Wireless 236 active
240-317 STARPOWER COMMUNICATIONS, LLC - MD LXTNPKGRML Landline 236 active
240-318 VERIZON MARYLAND, INC. WSNGTNZN16 Landline 236 active
240-319 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD LAUREL238 Wireless 238 active
240-320 PAETEC ITEL, LLC WALDORF VoIP 236 active
240-321 USCOC OF CUMBERLAND, INC. DBA UNITED STATES CEL MD OAKLAND Wireless 240 active
240-322 CORE COMMUNICATIONS, INC.- MD MCCOOLE Landline 240 active
240-323 CORE COMMUNICATIONS, INC.- MD EMMITSBURG Landline 240 active
240-324 YMAX COMMUNICATIONS CORP. - MD ASHTON238 Landline 238 active
240-325 CORE COMMUNICATIONS, INC.- MD DAMASCS236 Landline 236 active
240-326 PAETEC ITEL, LLC WSNG236Z15 VoIP 236 active
240-327 CORE COMMUNICATIONS, INC.- MD GAITHERSBG Landline 236 active
240-328 VERIZON MARYLAND, INC. WSNGTNZN10 Landline 236 active
240-329 LEVEL 3 COMMUNICATIONS, LLC - MD HAGERSTOWN Landline 240 active
240-330 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN2 Wireless 236 active
240-331 PEERLESS NETWORK OF MARYLAND, LLC WSHNGTNZN3 Landline 236 active
240-332 PEERLESS NETWORK OF MARYLAND, LLC TOMPKINSVL Landline 236 active
240-333 PAETEC ITEL, LLC WSHNGTNZN2 VoIP 236 active
240-334 LEVEL 3 COMMUNICATIONS, LLC - MD WSNG236Z14 Landline 236 active
240-335 PAETEC ITEL, LLC WSNG236Z14 VoIP 236 active
240-336 CORE COMMUNICATIONS, INC.- MD WSHNGTNZN2 Landline 236 active
240-337 ONVOY, LLC - MD WSHNGTNZN5 Landline 236 active
240-338 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD WSHNGTNZN3 Wireless 236 active
240-339 PAETEC ITEL, LLC WSNG236Z15 VoIP 236 active
240-340 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN2 Wireless 236 active
240-341 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD BUCKEYSTN Landline 240 active
240-342 STARPOWER COMMUNICATIONS, LLC - MD ASHTON236 Landline 236 active
240-343 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD HANCOCK Wireless 240 active
240-344 NEW CINGULAR WIRELESS PCS, LLC - DC FREDERICK Wireless 240 active
240-345 LEVEL 3 COMMUNICATIONS, LLC - MD ASHTON238 Landline 238 active
240-346 METROPCS, INC. WALDORF Wireless 236 active
240-347 BANDWIDTH.COM CLEC, LLC - MD HAGERSTOWN VoIP 240 active
240-348 LEVEL 3 COMMUNICATIONS, LLC - MD WSNGTNZN16 Landline 236 active
240-349 ONVOY, LLC - MD LA PLATA Landline 236 active
240-350 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN3 Wireless 236 active
240-351 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN3 Wireless 236 active
240-352 PEERLESS NETWORK OF MARYLAND, LLC LA PLATA Landline 236 active
240-353 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN3 Wireless 236 active
240-354 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN3 Wireless 236 active
240-355 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN3 Wireless 236 active
240-356 LEVEL 3 COMMUNICATIONS, LLC - MD MYERSVILLE Landline 240 active
240-357 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD FREDERICK Wireless 240 active
240-358 PEERLESS NETWORK OF MARYLAND, LLC DAMASCS236 Landline 236 active
240-359 PEERLESS NETWORK OF MARYLAND, LLC INDIANHEAD Landline 236 active
240-360 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC LAUREL236 Wireless 236 active
240-361 PAETEC ITEL, LLC GAITHERSBG VoIP 236 active
240-362 VERIZON MARYLAND, INC. CUMBERLAND Landline 240 active
240-363 ONVOY, LLC - MD WSNGTNZN11 Landline 236 active
240-364 PAETEC ITEL, LLC GAITHERSBG VoIP 236 active
240-365 BALTIMORE-WASHINGTON TELEPHONE (BWT) DAMASCS236 VoIP 236 active
240-366 BANDWIDTH.COM CLEC, LLC - MD WILLIAMSPT VoIP 240 active
240-367 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC FREDERICK Wireless 240 active
240-368 PEERLESS NETWORK OF MARYLAND, LLC WALDORF Landline 236 active
240-369 CORE COMMUNICATIONS, INC.- MD MOUNT AIRY Landline 240 active
240-370 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN2 Wireless 236 active
240-371 PEERLESS NETWORK OF MARYLAND, LLC WSNGTNZN12 Landline 236 active
240-372 METROPCS, INC. GAITHERSBG Wireless 236 active
240-373 VERIZON MARYLAND, INC. WSNG236Z13 Landline 236 active
240-374 LEVEL 3 COMMUNICATIONS, LLC - MD LAUREL236 Landline 236 active
240-375 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN5 Wireless 236 active
240-376 PEERLESS NETWORK OF MARYLAND, LLC HUGHESVL Landline 236 active
240-377 LEVEL 3 COMMUNICATIONS, LLC - MD INDIANHEAD Landline 236 active
240-378 CORE COMMUNICATIONS, INC.- MD CUMBERLAND Landline 240 active
240-379 VERIZON MARYLAND, INC. FREDERICK Landline 240 active
240-380 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD WSHNGTNZN2 Wireless 236 active
240-381 NEW CINGULAR WIRELESS PCS, LLC - DC WSHNGTNZN3 Wireless 236 active
240-382 TELEPORT COMMUNICATIONS AMERICA, LLC - MD HAGERSTOWN VoIP 240 active
240-383 NEW CINGULAR WIRELESS PCS, LLC - DC WSHNGTNZN2 Wireless 236 active
240-384 PEERLESS NETWORK OF MARYLAND, LLC LXTNPKGRML Landline 236 active
240-385 VERIZON MARYLAND, INC. MYERSVILLE Landline 240 active
240-386 VERIZON MARYLAND, INC. WSNGTNZN10 Landline 236 active
240-387 PAETEC ITEL, LLC WSNG236Z13 VoIP 236 active
240-388 METROPCS, INC. GAITHERSBG Wireless 236 active
240-389 PAETEC ITEL, LLC ASHTON236 VoIP 236 active
240-390 PAETEC ITEL, LLC ASHTON236 VoIP 236 active
240-391 ONVOY, LLC - MD WSNG236Z13 Landline 236 active
240-392 STARPOWER COMMUNICATIONS, LLC - MD WSHNGTNZN5 Landline 236 active
240-393 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD WSHNGTNZN3 Wireless 236 active
240-394 NEW CINGULAR WIRELESS PCS, LLC - DC MOUNT AIRY Wireless 240 active
240-395 PAETEC ITEL, LLC WSHNGTNZN2 VoIP 236 active
240-396 LEVEL 3 COMMUNICATIONS, LLC - MD WSHNGTNZN2 Landline 236 active
240-397 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD FREDERICK Wireless 240 active
240-398 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN3 Wireless 236 active
240-399 MCIMETRO ACCESS TRANSMISSION SERVICES LLC WSNGTNZN10 Landline 236 active
240-400 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN2 Wireless 236 active
240-401 NEW CINGULAR WIRELESS PCS, LLC - DC WSNGTNZN10 Wireless 236 active
240-402 MCIMETRO ACCESS TRANSMISSION SERVICES LLC WSNG236Z13 Landline 236 active
240-403 PAETEC ITEL, LLC WSNGTNZN10 VoIP 236 active
240-404 MCIMETRO ACCESS TRANSMISSION SERVICES LLC GAITHERSBG Landline 236 active
240-405 PAETEC ITEL, LLC FREDERICK VoIP 240 active
240-406 NEW CINGULAR WIRELESS PCS, LLC - DC WSNGTNZN10 Wireless 236 active
240-407 LEVEL 3 COMMUNICATIONS, LLC - MD WSNGTNZN16 Landline 236 active
240-408 NEW CINGULAR WIRELESS PCS, LLC - DC WSNGTNZN10 Wireless 236 active
240-409 NEW CINGULAR WIRELESS PCS, LLC - DC FREDERICK Wireless 240 active
240-410 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC CUMBERLAND Wireless 240 active
240-412 METROPCS, INC. WALDORF Wireless 236 active
240-413 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN4 Wireless 236 active
240-414 PEERLESS NETWORK OF MARYLAND, LLC WSHNGTNZN6 Landline 236 active
240-415 YMAX COMMUNICATIONS CORP. - MD FREDERICK Landline 240 active
240-416 NEW CINGULAR WIRELESS PCS, LLC - DC WALDORF Wireless 236 active
240-417 METROPCS, INC. WSHNGTNZN5 Wireless 236 active
240-418 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN2 Wireless 236 active
240-419 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD WALDORF Wireless 236 active
240-420 VERIZON MARYLAND, INC. HAGERSTOWN Landline 240 active
240-421 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSNGTNZN10 Wireless 236 active
240-422 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC FREDERICK Wireless 240 active
240-423 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN3 Wireless 236 active
240-424 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN3 Wireless 236 active
240-425 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN2 Wireless 236 active
240-426 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN2 Wireless 236 active
240-427 MCIMETRO ACCESS TRANSMISSION SERVICES LLC WALDORF Landline 236 active
240-428 BANDWIDTH.COM CLEC, LLC - MD WSNGTNZN10 VoIP 236 active
240-429 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD WSHNGTNZN3 Wireless 236 active
240-430 PAETEC ITEL, LLC WSNGTNZN11 VoIP 236 active
240-431 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC LXTNPKGRML Wireless 236 active
240-432 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN3 Wireless 236 active
240-433 PAETEC ITEL, LLC WSNGTNZN12 VoIP 236 active
240-434 LEVEL 3 COMMUNICATIONS, LLC - MD LEONARDTN Landline 236 active
240-435 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD WALDORF Wireless 236 active
240-436 LEVEL 3 COMMUNICATIONS, LLC - MD BUCKEYSTN Landline 240 active
240-437 MCIMETRO ACCESS TRANSMISSION SERVICES LLC ASHTON236 Landline 236 active
240-438 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN3 Wireless 236 active
240-439 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD FREDERICK Wireless 240 active
240-440 NEW CINGULAR WIRELESS PCS, LLC - DC FREDERICK Wireless 240 active
240-441 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN6 Wireless 236 active
240-442 VERIZON MARYLAND, INC. OAKLAND Landline 240 active
240-443 ONVOY, LLC - MD WSHNGTNZN6 Landline 236 active
240-444 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD LAUREL236 Wireless 236 active
240-445 ONVOY, LLC - MD WSHNGTNZN2 Landline 236 active
240-446 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD FREDERICK Wireless 240 active
240-447 NEW CINGULAR WIRELESS PCS, LLC - DC WSNGTNZN10 Wireless 236 active
240-448 ONVOY, LLC - MD WALDORF Landline 236 active
240-449 NEW CINGULAR WIRELESS PCS, LLC - DC GAITHERSBG Wireless 236 active
240-450 PAETEC ITEL, LLC WSHNGTNZN3 VoIP 236 active
240-451 ONVOY, LLC - MD THURMONT Landline 240 active
240-452 METROPCS, INC. HAGERSTOWN Landline 240 active
240-453 VERIZON MARYLAND, INC. WSNGTNZN10 Landline 236 active
240-454 PAETEC ITEL, LLC GAITHERSBG VoIP 236 active
240-455 PAETEC ITEL, LLC WSHNGTNZN5 VoIP 236 active
240-456 VERIZON MARYLAND, INC. LAUREL236 Landline 236 active
240-457 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD FREDERICK Wireless 240 active
240-458 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD WALDORF Wireless 236 active
240-459 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD LAUREL236 Wireless 236 active
240-460 NEW CINGULAR WIRELESS PCS, LLC - DC WSHNGTNZN3 Wireless 236 active
240-461 NEW CINGULAR WIRELESS PCS, LLC - DC WSHNGTNZN3 Wireless 236 active
240-462 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN3 Wireless 236 active
240-463 NEW CINGULAR WIRELESS PCS, LLC - DC WSHNGTNZN3 Wireless 236 active
240-464 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN2 Wireless 236 active
240-465 PEERLESS NETWORK OF MARYLAND, LLC WSHNGTNZN2 Landline 236 active
240-466 NEW CINGULAR WIRELESS PCS, LLC - DC MECHANCSVL Wireless 236 active
240-467 COMCAST IP PHONE, LLC WSHNGTNZN4 VoIP 236 active
240-468 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN3 Wireless 236 active
240-469 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC HAGERSTOWN Wireless 240 active
240-470 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD LAUREL236 Wireless 236 active
240-471 ONVOY, LLC - MD WSNGTNZN12 Landline 236 active
240-472 NEW CINGULAR WIRELESS PCS, LLC - DC WSHNGTNZN3 Wireless 236 active
240-473 PAETEC ITEL, LLC WSNG236Z13 VoIP 236 active
240-474 BALTIMORE-WASHINGTON TELEPHONE (BWT) GAITHERSBG VoIP 236 active
240-475 NEW CINGULAR WIRELESS PCS, LLC - DC WSHNGTNZN3 Wireless 236 active
240-476 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN3 Wireless 236 active
240-477 PAETEC ITEL, LLC GAITHERSBG VoIP 236 active
240-478 NEW CINGULAR WIRELESS PCS, LLC - DC WSHNGTNZN3 Wireless 236 active
240-479 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD WSHNGTNZN2 Wireless 236 active
240-480 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN2 Wireless 236 active
240-481 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN3 Wireless 236 active
240-482 PAETEC ITEL, LLC WSHNGTNZN2 VoIP 236 active
240-483 COMCAST IP PHONE, LLC WSHNGTNZN2 VoIP 236 active
240-484 NEW CINGULAR WIRELESS PCS, LLC - DC LAUREL236 Wireless 236 active
240-485 PAETEC ITEL, LLC WSHNGTNZN3 VoIP 236 active
240-486 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSNG236Z14 Wireless 236 active
240-487 PAETEC ITEL, LLC WSHNGTNZN4 VoIP 236 active
240-488 SHENTEL COMMUNICATIONS, LLC. - MD OAKLAND Landline 240 active
240-489 MCIMETRO ACCESS TRANSMISSION SERVICES LLC POOLESVL Landline 236 active
240-490 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC MIDDLETOWN Wireless 240 active
240-491 LEVEL 3 COMMUNICATIONS, LLC - MD WSHNGTNZN3 Landline 236 active
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240-804 ONVOY, LLC - MD TOMPKINSVL Landline 236 active
240-805 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD GAITHERSBG Wireless 236 active
240-806 PEERLESS NETWORK OF MARYLAND, LLC INDIANHEAD Landline 236 active
240-807 USCOC OF CUMBERLAND, INC. DBA UNITED STATES CEL MD CUMBERLAND Wireless 240 active
240-808 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD LEONARDTN Wireless 236 active
240-809 ONVOY, LLC - MD SMITHSBURG Landline 240 active
240-810 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSNGTNZN10 Wireless 236 active
240-812 LEVEL 3 COMMUNICATIONS, LLC - MD POOLESVL Landline 236 active
240-813 PAETEC ITEL, LLC GAITHERSBG VoIP 236 active
240-814 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD LAUREL236 Wireless 236 active
240-815 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD FREDERICK Wireless 240 active
240-816 BANDWIDTH.COM CLEC, LLC - MD KEEDYSVL VoIP 240 active
240-817 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ASHTON236 Wireless 236 active
240-818 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD MYERSVILLE Wireless 240 active
240-819 ONVOY, LLC - MD WILLIAMSPT Landline 240 active
240-820 ONVOY, LLC - MD ASHTON238 Landline 238 active
240-821 PAETEC ITEL, LLC WSHNGTNZN3 VoIP 236 active
240-822 ONVOY, LLC - MD NEW MARKET Landline 240 active
240-823 MCIMETRO ACCESS TRANSMISSION SERVICES LLC BRANDYWINE Landline 236 active
240-824 ONVOY, LLC - MD FROSTBURG Landline 240 active
240-825 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD WSHNGTNZN4 Wireless 236 active
240-826 VERIZON MARYLAND, INC. WSNGTNZN10 Landline 236 active
240-827 ONVOY, LLC - MD LONACONING Landline 240 active
240-828 TELNYX LLC WSHNGTNZN4 VoIP 236 active
240-829 CORETEL MARYLAND, INC. - MD EMMITSBURG Landline 240 active
240-830 COMCAST IP PHONE, LLC WSHNGTNZN5 VoIP 236 active
240-831 ONVOY, LLC - MD FREDERICK Landline 240 active
240-832 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN2 Wireless 236 active
240-833 MCIMETRO ACCESS TRANSMISSION SERVICES LLC WSNGTNZN11 Landline 236 active
240-834 ONVOY, LLC - MD KITZMILLER Landline 240 active
240-835 ONVOY SPECTRUM, LLC CLEAR SPG Wireless 240 active
240-836 ONVOY, LLC - MD MT SAVAGE Landline 240 active
240-837 MCIMETRO ACCESS TRANSMISSION SERVICES LLC HUGHESVL Landline 236 active
240-838 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN5 Wireless 236 active
240-839 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD WSHNGTNZN3 Wireless 236 active
240-840 ONVOY SPECTRUM, LLC FREDERICK Wireless 240 active
240-841 MCIMETRO ACCESS TRANSMISSION SERVICES LLC LAUREL238 Landline 238 active
240-842 MCIMETRO ACCESS TRANSMISSION SERVICES LLC WSNG238Z14 Landline 238 active
240-843 MCIMETRO ACCESS TRANSMISSION SERVICES LLC WSNG238Z13 Landline 238 active
240-844 ONVOY, LLC - MD RIDGE Landline 236 active
240-845 MCIMETRO ACCESS TRANSMISSION SERVICES LLC WSNG236Z13 Landline 236 active
240-846 MCIMETRO ACCESS TRANSMISSION SERVICES LLC WSNGTNZN16 Landline 236 active
240-847 ONVOY, LLC - MD WSHNGTNZN3 Landline 236 active
240-848 METROPCS, INC. GAITHERSBG Wireless 236 active
240-849 TELEPORT COMMUNICATIONS AMERICA, LLC - MD HAGERSTOWN VoIP 240 active
240-850 PEERLESS NETWORK OF MARYLAND, LLC HAGERSTOWN Landline 240 active
240-851 ONVOY, LLC - MD MCCOOLE Landline 240 active
240-852 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC MYERSVILLE Wireless 240 active
240-853 BANDWIDTH.COM CLEC, LLC - MD LAUREL236 VoIP 236 active
240-854 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN4 Wireless 236 active
240-855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN2 Wireless 236 active
240-856 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD LAUREL238 Wireless 238 active
240-857 LEVEL 3 TELECOM OF MARYLAND, LLC - MD WSHNGTNZN5 Landline 236 active
240-858 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD WSHNGTNZN2 Wireless 236 active
240-859 ONVOY, LLC - MD ASHTON238 Landline 238 active
240-860 PEERLESS NETWORK OF MARYLAND, LLC CUMBERLAND Landline 240 active
240-861 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ASHTON236 Wireless 236 active
240-862 ONVOY, LLC - MD MT SAVAGE Landline 240 active
240-863 LEVEL 3 TELECOM OF MARYLAND, LLC - MD WSHNGTNZN3 Landline 236 active
240-864 PAETEC ITEL, LLC WSNGTNZN10 VoIP 236 active
240-865 LEVEL 3 COMMUNICATIONS, LLC - MD WSNG238Z14 Landline 238 active
240-866 TERRA NOVA TELECOM INC. HAGERSTOWN VoIP 240 active
240-867 COMMIO, LLC WSHNGTNZN3 VoIP 236 active
240-868 PAETEC ITEL, LLC WSNGTNZN12 VoIP 236 active
240-869 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSNGTNZN10 Wireless 236 active
240-870 ONVOY, LLC - MD MIDDLETOWN Landline 240 active
240-871 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC LXTNPKGRML Wireless 236 active
240-872 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN6 Wireless 236 active
240-873 ONVOY, LLC - MD BUCKEYSTN Landline 240 active
240-874 ONVOY, LLC - MD THURMONT Landline 240 active
240-875 ONVOY, LLC - MD MOUNT AIRY Landline 240 active
240-876 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN2 Wireless 236 active
240-877 ONVOY, LLC - MD FREDERICK Landline 240 active
240-878 COMMIO, LLC HAGERSTOWN VoIP 240 active
240-879 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN4 Wireless 236 active
240-880 LEVEL 3 COMMUNICATIONS, LLC - MD WSNGTNZN11 Landline 236 active
240-881 BANDWIDTH.COM CLEC, LLC - MD WSNG238Z13 VoIP 238 active
240-882 METROPCS, INC. WSHNGTNZN5 Wireless 236 active
240-883 LEVEL 3 COMMUNICATIONS, LLC - MD ASHTON236 Landline 236 active
240-884 ONVOY SPECTRUM, LLC TOMPKINSVL Wireless 236 active
240-885 ONVOY, LLC - MD WSNGTNZN10 Landline 236 active
240-886 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN4 Wireless 236 active
240-887 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ASHTON236 Wireless 236 active
240-888 NEW CINGULAR WIRELESS PCS, LLC - DC WSNGTNZN10 Wireless 236 active
240-889 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSNGTNZN10 Wireless 236 active
240-890 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD WSHNGTNZN5 Wireless 236 active
240-891 LEVEL 3 COMMUNICATIONS, LLC - MD DAMASCS240 Landline 240 active
240-892 LEVEL 3 COMMUNICATIONS, LLC - MD WSNG236Z15 Landline 236 active
240-893 NEW CINGULAR WIRELESS PCS, LLC - DC WSHNGTNZN3 Wireless 236 active
240-894 BOOST SUBSCRIBERCO L.L.C. LXTNPKGRML Wireless 236 active
240-895 VERIZON MARYLAND, INC. LXTNPKGRML Landline 236 active
240-896 BOOST SUBSCRIBERCO L.L.C. HAGERSTOWN Wireless 240 active
240-897 LEVEL 3 COMMUNICATIONS, LLC - MD WSNGTNZN16 Landline 236 active
240-898 LEVEL 3 COMMUNICATIONS, LLC - MD WSHNGTNZN4 Landline 236 active
240-899 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN2 Wireless 236 active
240-900 ONVOY, LLC - MD WSHNGTNZN4 Landline 236 active
240-901 CENTURYLINK COMMUNICATIONS, LLC LA PLATA VoIP 236 active
240-902 TWILIO INTERNATIONAL, INC. DAMASCS240 VoIP 240 active
240-903 COMCAST IP PHONE, LLC INDIANHEAD VoIP 236 active
240-904 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD LAUREL238 Wireless 238 active
240-905 METROPCS, INC. BRANDYWINE Wireless 236 active
240-906 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN4 Wireless 236 active
240-907 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD WSNGTNZN10 Wireless 236 active
240-908 ONVOY, LLC - MD WALKERSVL Landline 240 active
240-909 METROPCS, INC. LAUREL236 Wireless 236 active
240-910 ONVOY, LLC - MD FREDERICK Landline 240 active
240-912 PAETEC ITEL, LLC GAITHERSBG VoIP 236 active
240-913 ONVOY, LLC - MD DAMASCS240 Landline 240 active
240-914 BOOST SUBSCRIBERCO L.L.C. HIGHFIELD Wireless 240 active
240-915 TELNYX LLC NEW MARKET VoIP 240 active
240-916 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC CUMBERLAND Wireless 240 active
240-917 NEW CINGULAR WIRELESS PCS, LLC - DC LAUREL236 Wireless 236 active
240-918 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ASHTON236 Wireless 236 active
240-919 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ASHTON236 Wireless 236 active
240-920 LEVEL 3 COMMUNICATIONS, LLC - MD CUMBERLAND Landline 240 active
240-921 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSNGTNZN10 Wireless 236 active
240-922 FRACTEL, LLC WSNGTNZN11 VoIP 236 active
240-923 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN6 Wireless 236 active
240-924 BANDWIDTH.COM CLEC, LLC - MD MOUNT AIRY VoIP 240 active
240-925 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD LEONARDTN Wireless 236 active
240-926 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC HUGHESVL Wireless 236 active
240-927 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN4 Wireless 236 active
240-928 NEW CINGULAR WIRELESS PCS, LLC - DC MYERSVILLE Wireless 240 active
240-929 PAETEC ITEL, LLC WSNG236Z14 VoIP 236 active
240-930 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD LAUREL238 Wireless 238 active
240-931 NUSO, LLC FREDERICK VoIP 240 active
240-932 BANDWIDTH.COM CLEC, LLC - MD WSNG236Z14 VoIP 236 active
240-933 TON80 COMMUNICATIONS, LLC BUCKEYSTN VoIP 240 active
240-934 TON80 COMMUNICATIONS, LLC MIDDLETOWN VoIP 240 active
240-935 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD LAUREL236 Wireless 236 active
240-936 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ASHTON236 Wireless 236 active
240-937 BANDWIDTH.COM CLEC, LLC - MD GAITHERSBG VoIP 236 active
240-938 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ASHTON236 Wireless 236 active
240-939 BANDWIDTH.COM CLEC, LLC - MD WSNGTNZN11 VoIP 236 active
240-940 BANDWIDTH.COM CLEC, LLC - MD WSHNGTNZN4 VoIP 236 active
240-941 BANDWIDTH.COM CLEC, LLC - MD WSHNGTNZN2 VoIP 236 active
240-942 ONVOY, LLC - MD BITTINGER Landline 240 active
240-943 COMCAST IP PHONE, LLC FROSTBURG VoIP 240 active
240-944 ONVOY, LLC - MD WESTERNPT Landline 240 active
240-945 ONVOY, LLC - MD WSHNGTNZN3 Landline 236 active
240-946 FRACTEL, LLC WSNG236Z14 VoIP 236 active
240-947 NEW CINGULAR WIRELESS PCS, LLC - DC MYERSVILLE Wireless 240 active
240-948 BANDWIDTH.COM CLEC, LLC - MD LEONARDTN VoIP 236 active
240-949 PAETEC ITEL, LLC WSNGTNZN16 VoIP 236 active
240-951 TELEPORT COMMUNICATIONS AMERICA, LLC - MD HAGERSTOWN VoIP 240 active
240-952 TELEPORT COMMUNICATIONS AMERICA, LLC - MD HAGERSTOWN VoIP 240 active
240-953 TELEPORT COMMUNICATIONS AMERICA, LLC - MD HAGERSTOWN VoIP 240 active
240-954 TELEPORT COMMUNICATIONS AMERICA, LLC - MD HAGERSTOWN VoIP 240 active
240-955 BANDWIDTH.COM CLEC, LLC - MD LA PLATA VoIP 236 active
240-956 ONVOY, LLC - MD WSHNGTNZN2 Landline 236 active
240-957 BANDWIDTH.COM CLEC, LLC - MD DAMASCS236 VoIP 236 active
240-960 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN4 Wireless 236 active
240-961 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD POOLESVL Wireless 236 active
240-962 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD LAUREL236 Wireless 236 active
240-963 BANDWIDTH.COM CLEC, LLC - MD WSHNGTNZN3 VoIP 236 active
240-964 VERIZON MARYLAND, INC. CUMBERLAND Landline 240 active
240-965 PAETEC ITEL, LLC WSNG236Z13 VoIP 236 active
240-966 TON80 COMMUNICATIONS, LLC WSNGTNZN16 VoIP 236 active
240-967 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD CUMBERLAND Wireless 240 active
240-968 NEW CINGULAR WIRELESS PCS, LLC - DC LAUREL236 Wireless 236 active
240-969 COMMIO, LLC WALKERSVL VoIP 240 active
240-970 ONVOY, LLC - MD WSNGTNZN12 Landline 236 active
240-971 CENTURYLINK COMMUNICATIONS, LLC FREDERICK VoIP 240 active
240-972 BALTIMORE-WASHINGTON TELEPHONE (BWT) LAUREL238 VoIP 238 active
240-973 METROPCS, INC. WSNGTNZN12 Wireless 236 active
240-974 NEW CINGULAR WIRELESS PCS, LLC - DC WSNGTNZN10 Wireless 236 active
240-975 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD LAUREL238 Wireless 238 active
240-977 ONVOY, LLC - MD WSHNGTNZN6 Landline 236 active
240-978 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ASHTON236 Wireless 236 active
240-979 LEVEL 3 COMMUNICATIONS, LLC - MD CUMBERLAND Landline 240 active
240-980 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD LEONARDTN Wireless 236 active
240-981 NUSO, LLC GAITHERSBG VoIP 236 active
240-982 ONVOY, LLC - MD GAITHERSBG Landline 236 active
240-983 NUSO, LLC HAGERSTOWN VoIP 240 active
240-984 TELEPORT COMMUNICATIONS AMERICA, LLC - MD NEW MARKET VoIP 240 active
240-985 CENTURYLINK COMMUNICATIONS, LLC WILLIAMSPT VoIP 240 active
240-986 ONVOY, LLC - MD NANJEMOY Landline 236 active
240-987 NEW CINGULAR WIRELESS PCS, LLC - DC WSNGTNZN10 Wireless 236 active
240-988 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSHNGTNZN3 Wireless 236 active
240-989 NEW CINGULAR WIRELESS PCS, LLC - DC MYERSVILLE Wireless 240 active
240-990 NEW CINGULAR WIRELESS PCS, LLC - DC LAUREL236 Wireless 236 active
240-991 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ASHTON236 Wireless 236 active
240-992 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC WSNGTNZN10 Wireless 236 active
240-993 MCIMETRO ACCESS TRANSMISSION SERVICES LLC INDIANHEAD Landline 236 active
240-994 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD WSNGTNZN10 Wireless 236 active
240-995 ONVOY, LLC - MD FLINTSTONE Landline 240 active
240-996 LEVEL 3 COMMUNICATIONS, LLC - MD BRUNSWICK Landline 240 active
240-997 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD WSHNGTNZN3 Wireless 236 active
240-998 CENTURYLINK COMMUNICATIONS, LLC HANCOCK VoIP 240 active

Area code 240 shares its geographic region with the following overlay area codes:

227 301