Reference Data
Area Code Directory
Area Code 667 — Baltimore, Salisbury, Columbia, Maryland

Area Code 667 — Baltimore, Salisbury, Columbia, Maryland

Active

Data last updated: March 10, 2026

State
Maryland
Country
US
Timezone
America/New_York
Assigned
February 8, 2012
Exchanges (NXX)
786
Carriers
49
Rate Centers
102
Overlay
Yes — 410, 443

Top Carriers

Carrier OCN NXX Count
ONVOY, LLC - MD 876D 81
OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 6855 57
NEW CINGULAR WIRELESS PCS, LLC - DC 4036 50
CORE COMMUNICATIONS, INC.- MD 2593 41
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 6395 23
TON80 COMMUNICATIONS, LLC 516J 21
BANDWIDTH.COM CLEC, LLC - MD 071F 16
ONVOY SPECTRUM, LLC 624H 15
BOOST SUBSCRIBERCO L.L.C. 490J 8
TELEPORT COMMUNICATIONS AMERICA, LLC - MD 7325 8

Rate Centers

COLUMBIA BEL AIR ELKTON BALTIMORE ANNAPOLIS TOWSON GREENSBORO SALISBURY ARGRGBSNIS STMICHAELS ABERDEEN CENTREVL GLENBURNIE PERRYVILLE WEST RIVER PRESTON RIDGELY ROCK HALL OXFORD STILL POND CECILTON CHESAPKECY DENTON GALENA CHESTERTN HILLSBORO REISTERSTN DUNDALK DELMAR VIENNA DARLINGTON WESTMINSTR PIKESVILLE ELKRIDGE SHERWD FOR BISHOPVL ELLICOTTCY TILGHMAN FORK HURLOCK BERLIN MILLINGTON SHARPTOWN CROFTON EDGEWOOD PRINCEFRCK ESSEX PARKVILLE PRINCEANNE COCKEYSVL WATERLO236 QUEENSTOWN RANDALLSTN CHURCHHILL CAMBRIDGE PARKTON NEWWINDSOR SYKESVILLE CHURCHVL CHASE CATONSVL FEDERALSBG WINGATE CARDIFF SEVERN EASTON ODENTON STEVENSVL HAMPSTEAD NORTHBEACH WATERLO238 SOLOMONS ARBUTUS MILLERSVL PT DEPOSIT UNION BDG TANEYTOWN HAVREGRACE NANTICOKE GLENWOOD DEALISLAND OCEAN CITY WOODLAWN SEVERNA PK RISING SUN WARWICK JARRETTSVL NORTH EAST BRYNPKLNCM MARION SNOW HILL SMITH IS TRAPPE FALLSTON SUDLERSVL WILLARDS SILVER RUN SPARKSGLNC SPARROWSPT POCOMOKE CRISFIELD WORTHINGTN

Exchange Listings (NXX)

NPA-NXX Carrier Rate Center Type LATA Status
667-200 ONVOY, LLC - MD COLUMBIA Landline 238 active
667-201 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD BEL AIR Wireless 238 active
667-202 ONVOY, LLC - MD ELKTON Landline 238 active
667-203 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD BALTIMORE Wireless 238 active
667-204 PAETEC ITEL, LLC ANNAPOLIS VoIP 238 active
667-205 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD BALTIMORE Wireless 238 active
667-206 METROPCS, INC. TOWSON Wireless 238 active
667-207 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD BALTIMORE Wireless 238 active
667-208 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD BALTIMORE Wireless 238 active
667-209 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD BALTIMORE Wireless 238 active
667-210 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD BALTIMORE Wireless 238 active
667-212 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD BALTIMORE Wireless 238 active
667-213 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD BALTIMORE Wireless 238 active
667-214 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD BALTIMORE Wireless 238 active
667-215 COMCAST IP PHONE, LLC ELKTON VoIP 238 active
667-216 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD BALTIMORE Wireless 238 active
667-217 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD BALTIMORE Wireless 238 active
667-218 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD BALTIMORE Wireless 238 active
667-219 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD BALTIMORE Wireless 238 active
667-220 ONVOY, LLC - MD GREENSBORO Landline 242 active
667-221 TELNYX LLC SALISBURY VoIP 242 active
667-222 ONVOY, LLC - MD ARGRGBSNIS Landline 238 active
667-223 VONAGE AMERICA LLC BALTIMORE VoIP 238 active
667-224 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD BALTIMORE Wireless 238 active
667-225 NEW CINGULAR WIRELESS PCS, LLC - DC ANNAPOLIS Wireless 238 active
667-226 ONVOY, LLC - MD STMICHAELS Landline 242 active
667-227 ATLANTECH ONLINE, INC. - MD SALISBURY VoIP 242 active
667-228 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ABERDEEN Wireless 238 active
667-229 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ABERDEEN Wireless 238 active
667-230 PEERLESS NETWORK OF MARYLAND, LLC CENTREVL Landline 242 active
667-231 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ABERDEEN Wireless 238 active
667-232 TELEPORT COMMUNICATIONS AMERICA, LLC - MD GLENBURNIE VoIP 238 active
667-233 VERIZON MARYLAND, INC. BALTIMORE Landline 238 active
667-234 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD BALTIMORE Wireless 238 active
667-235 VONAGE AMERICA LLC SALISBURY VoIP 242 active
667-236 CORE COMMUNICATIONS, INC.- MD PERRYVILLE Landline 238 active
667-237 CORE COMMUNICATIONS, INC.- MD WEST RIVER Landline 238 active
667-238 CORE COMMUNICATIONS, INC.- MD PRESTON Landline 242 active
667-239 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD BALTIMORE Wireless 238 active
667-240 BARR TELL USA, INC. COLUMBIA Landline 238 active
667-241 CORE COMMUNICATIONS, INC.- MD RIDGELY Landline 242 active
667-242 CORE COMMUNICATIONS, INC.- MD ROCK HALL Landline 242 active
667-243 CORE COMMUNICATIONS, INC.- MD OXFORD Landline 242 active
667-244 CORE COMMUNICATIONS, INC.- MD STILL POND Landline 242 active
667-245 CORE COMMUNICATIONS, INC.- MD CECILTON Landline 242 active
667-246 CORE COMMUNICATIONS, INC.- MD CENTREVL Landline 242 active
667-247 CORE COMMUNICATIONS, INC.- MD CHESAPKECY Landline 242 active
667-248 CORE COMMUNICATIONS, INC.- MD DENTON Landline 242 active
667-249 CORE COMMUNICATIONS, INC.- MD GALENA Landline 242 active
667-250 ONVOY SPECTRUM, LLC BALTIMORE Wireless 238 active
667-251 LEVEL 3 COMMUNICATIONS, LLC - MD TOWSON Landline 238 active
667-252 ONVOY SPECTRUM, LLC SALISBURY Wireless 242 active
667-253 NUSO, LLC SALISBURY Wireless 242 active
667-254 CORE COMMUNICATIONS, INC.- MD CHESTERTN Landline 242 active
667-255 ONVOY, LLC - MD HILLSBORO Landline 242 active
667-256 EXIANT COMMUNICATIONS LLC ABERDEEN VoIP 238 active
667-257 VONAGE AMERICA LLC COLUMBIA VoIP 238 active
667-258 AIRESPRING, INC. BALTIMORE VoIP 238 active
667-259 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD REISTERSTN Landline 238 active
667-260 ONVOY, LLC - MD BALTIMORE Landline 238 active
667-261 NEW CINGULAR WIRELESS PCS, LLC - DC COLUMBIA Wireless 238 active
667-262 ONVOY SPECTRUM, LLC BALTIMORE Wireless 238 active
667-263 NEW CINGULAR WIRELESS PCS, LLC - DC DUNDALK Wireless 238 active
667-264 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD DELMAR Landline 242 active
667-265 MCIMETRO ACCESS TRANSMISSION SERVICES LLC VIENNA Landline 242 active
667-266 COMMIO, LLC SALISBURY VoIP 242 active
667-267 CORE COMMUNICATIONS, INC.- MD ANNAPOLIS Landline 238 active
667-268 BANDWIDTH.COM CLEC, LLC - MD DARLINGTON VoIP 238 active
667-269 CORE COMMUNICATIONS, INC.- MD ELKTON Landline 238 active
667-270 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD ANNAPOLIS Wireless 238 active
667-271 EXIANT COMMUNICATIONS LLC SALISBURY VoIP 242 active
667-272 NEW CINGULAR WIRELESS PCS, LLC - DC WESTMINSTR Wireless 238 active
667-273 CSC WIRELESS, LLC PIKESVILLE Wireless 238 active
667-274 NEW CINGULAR WIRELESS PCS, LLC - DC ELKRIDGE Wireless 238 active
667-275 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD TOWSON Wireless 238 active
667-276 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD BEL AIR Landline 238 active
667-277 CORE COMMUNICATIONS, INC.- MD SHERWD FOR Landline 238 active
667-278 NEW CINGULAR WIRELESS PCS, LLC - DC TOWSON Wireless 238 active
667-279 ONVOY, LLC - MD BISHOPVL Landline 242 active
667-280 VONAGE AMERICA LLC ELLICOTTCY VoIP 238 active
667-281 PEERLESS NETWORK OF MARYLAND, LLC SALISBURY Landline 242 active
667-282 ONVOY, LLC - MD TILGHMAN Landline 242 active
667-283 AT&T - LOCAL FORK Landline 238 active
667-284 LEVEL 3 COMMUNICATIONS, LLC - MD BALTIMORE Landline 238 active
667-285 ONVOY, LLC - MD HURLOCK Landline 242 active
667-286 HD CARRIER LLC SALISBURY VoIP 242 active
667-287 NUSO, LLC BISHOPVL VoIP 242 active
667-288 LEVEL 3 COMMUNICATIONS, LLC - MD BERLIN Landline 242 active
667-289 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ABERDEEN Wireless 238 active
667-290 IP HORIZON LLC BALTIMORE VoIP 238 active
667-291 ONVOY, LLC - MD MILLINGTON Landline 242 active
667-292 IP HORIZON LLC SALISBURY VoIP 242 active
667-293 ONVOY, LLC - MD SHARPTOWN Landline 242 active
667-294 NEW CINGULAR WIRELESS PCS, LLC - DC TOWSON Wireless 238 active
667-295 CORE COMMUNICATIONS, INC.- MD CROFTON Landline 238 active
667-296 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD REISTERSTN Landline 238 active
667-297 METROPCS, INC. EDGEWOOD Wireless 238 active
667-298 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ABERDEEN Wireless 238 active
667-299 HD CARRIER LLC ANNAPOLIS VoIP 238 active
667-300 CORE COMMUNICATIONS, INC.- MD COLUMBIA Landline 238 active
667-301 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD PRINCEFRCK Wireless 238 active
667-302 TELNYX LLC CECILTON VoIP 242 active
667-303 NUSO, LLC BALTIMORE Wireless 238 active
667-304 BANDWIDTH.COM CLEC, LLC - MD ESSEX VoIP 238 active
667-305 NUSO, LLC PIKESVILLE Wireless 238 active
667-306 LEVEL 3 COMMUNICATIONS, LLC - MD BALTIMORE Landline 238 active
667-307 PEERLESS NETWORK OF MARYLAND, LLC CROFTON Landline 238 active
667-308 PEERLESS NETWORK OF MARYLAND, LLC TOWSON Landline 238 active
667-309 ONVOY, LLC - MD BALTIMORE Landline 238 active
667-310 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC PARKVILLE Wireless 238 active
667-312 ATLANTECH ONLINE, INC. - MD BALTIMORE VoIP 238 active
667-313 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD PIKESVILLE Landline 238 active
667-314 BARR TELL USA, INC. WESTMINSTR Landline 238 active
667-315 BANDWIDTH.COM CLEC, LLC - MD BEL AIR VoIP 238 active
667-316 TELNYX LLC OXFORD VoIP 242 active
667-317 LEVEL 3 COMMUNICATIONS, LLC - MD PRINCEANNE Landline 242 active
667-318 BANDWIDTH.COM CLEC, LLC - MD COCKEYSVL VoIP 238 active
667-319 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC CHESTERTN Wireless 242 active
667-320 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ABERDEEN Wireless 238 active
667-321 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC PRINCEFRCK Wireless 238 active
667-322 ONVOY, LLC - MD WATERLO236 Landline 236 active
667-323 LEVEL 3 COMMUNICATIONS, LLC - MD QUEENSTOWN Landline 242 active
667-324 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC RANDALLSTN Wireless 238 active
667-325 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC GLENBURNIE Wireless 238 active
667-326 CORE COMMUNICATIONS, INC.- MD CHURCHHILL Landline 242 active
667-327 ONVOY, LLC - MD CAMBRIDGE Landline 242 active
667-328 NEW CINGULAR WIRELESS PCS, LLC - DC ESSEX Wireless 238 active
667-329 TELNYX LLC PARKTON VoIP 238 active
667-330 PAETEC ITEL, LLC SALISBURY VoIP 242 active
667-331 NEW CINGULAR WIRELESS PCS, LLC - DC TOWSON Wireless 238 active
667-332 CORE COMMUNICATIONS, INC.- MD NEWWINDSOR Landline 238 active
667-333 BALTIMORE-WASHINGTON TELEPHONE (BWT) ARGRGBSNIS VoIP 238 active
667-334 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ABERDEEN Wireless 238 active
667-335 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC BALTIMORE Wireless 238 active
667-336 CORE COMMUNICATIONS, INC.- MD BEL AIR Landline 238 active
667-337 ONVOY, LLC - MD CENTREVL Landline 242 active
667-338 ONVOY, LLC - MD CROFTON Landline 238 active
667-339 ONVOY, LLC - MD SYKESVILLE Landline 238 active
667-340 ONVOY, LLC - MD CHURCHVL Landline 238 active
667-341 ONVOY, LLC - MD DELMAR Landline 242 active
667-342 ONVOY, LLC - MD PRESTON Landline 242 active
667-343 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD CAMBRIDGE Landline 242 active
667-344 TELNYX LLC CHASE VoIP 238 active
667-345 CORE COMMUNICATIONS, INC.- MD CATONSVL Landline 238 active
667-346 CSC WIRELESS, LLC SALISBURY Wireless 242 active
667-347 ONVOY, LLC - MD FEDERALSBG Landline 242 active
667-348 ONVOY, LLC - MD RIDGELY Landline 242 active
667-349 ONVOY, LLC - MD STILL POND Landline 242 active
667-350 ONVOY, LLC - MD WINGATE Landline 242 active
667-351 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC BALTIMORE Wireless 238 active
667-352 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ABERDEEN Wireless 238 active
667-353 CORETEL MARYLAND, INC. - MD CARDIFF Landline 238 active
667-354 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC BALTIMORE Wireless 238 active
667-355 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ABERDEEN Wireless 238 active
667-356 ONVOY, LLC - MD SEVERN Landline 238 active
667-357 ONVOY, LLC - MD GREENSBORO Landline 242 active
667-358 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC EASTON Wireless 242 active
667-359 BANDWIDTH.COM CLEC, LLC - MD COLUMBIA VoIP 238 active
667-360 ONVOY, LLC - MD ODENTON Landline 238 active
667-361 ONVOY SPECTRUM, LLC CHURCHHILL Wireless 242 active
667-362 CORE COMMUNICATIONS, INC.- MD ANNAPOLIS Landline 238 active
667-363 ONVOY, LLC - MD SHERWD FOR Landline 238 active
667-364 CORE COMMUNICATIONS, INC.- MD STEVENSVL Landline 242 active
667-365 TON80 COMMUNICATIONS, LLC CHESAPKECY VoIP 242 active
667-366 CORE COMMUNICATIONS, INC.- MD HAMPSTEAD Landline 238 active
667-367 BALTIMORE-WASHINGTON TELEPHONE (BWT) WESTMINSTR VoIP 238 active
667-368 OMNIPOINT COMMUNICATIONS ENTERPRISES, LP ELKTON Wireless 238 active
667-369 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC CATONSVL Wireless 238 active
667-370 ONVOY, LLC - MD PARKTON Landline 238 active
667-371 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ELLICOTTCY Wireless 238 active
667-372 CORE COMMUNICATIONS, INC.- MD CAMBRIDGE Landline 242 active
667-373 CORE COMMUNICATIONS, INC.- MD NORTHBEACH Landline 238 active
667-374 BANDWIDTH.COM CLEC, LLC - MD WATERLO238 VoIP 238 active
667-375 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC CHASE Wireless 238 active
667-376 ONVOY, LLC - MD OXFORD Landline 242 active
667-377 ONVOY, LLC - MD ROCK HALL Landline 242 active
667-378 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ESSEX Wireless 238 active
667-379 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC BALTIMORE Wireless 238 active
667-380 ONVOY, LLC - MD ANNAPOLIS Landline 238 active
667-381 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC PARKVILLE Wireless 238 active
667-382 CORE COMMUNICATIONS, INC.- MD WINGATE Landline 242 active
667-383 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC TOWSON Wireless 238 active
667-384 BOOST SUBSCRIBERCO L.L.C. SALISBURY Wireless 242 active
667-385 BOOST SUBSCRIBERCO L.L.C. SOLOMONS Wireless 238 active
667-386 METROPCS, INC. ARBUTUS Wireless 238 active
667-387 ONVOY, LLC - MD PERRYVILLE Landline 238 active
667-388 NEW CINGULAR WIRELESS PCS, LLC - DC SEVERN Wireless 238 active
667-389 COMMIO, LLC CAMBRIDGE VoIP 242 active
667-390 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC RANDALLSTN Wireless 238 active
667-391 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC BALTIMORE Wireless 238 active
667-392 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ABERDEEN Wireless 238 active
667-393 BANDWIDTH.COM CLEC, LLC - MD MILLERSVL VoIP 238 active
667-394 BANDWIDTH.COM CLEC, LLC - MD NEWWINDSOR VoIP 238 active
667-395 BANDWIDTH.COM CLEC, LLC - MD CARDIFF VoIP 238 active
667-396 ONVOY, LLC - MD PT DEPOSIT Landline 238 active
667-397 ONVOY, LLC - MD SOLOMONS Landline 238 active
667-398 BANDWIDTH.COM CLEC, LLC - MD PT DEPOSIT VoIP 238 active
667-399 HD CARRIER LLC UNION BDG VoIP 238 active
667-400 BARR TELL USA, INC. BALTIMORE Landline 238 active
667-401 LEVEL 3 COMMUNICATIONS, LLC - MD BALTIMORE Landline 238 active
667-402 TELNYX LLC BALTIMORE VoIP 238 active
667-403 ONVOY, LLC - MD TOWSON Landline 238 active
667-404 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC PRINCEFRCK Wireless 238 active
667-405 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC GLENBURNIE Wireless 238 active
667-406 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC BALTIMORE Wireless 238 active
667-407 ONVOY, LLC - MD BALTIMORE Landline 238 active
667-408 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD ANNAPOLIS Wireless 238 active
667-409 BANDWIDTH.COM CLEC, LLC - MD PARKVILLE VoIP 238 active
667-410 NEW CINGULAR WIRELESS PCS, LLC - DC SEVERN Wireless 238 active
667-412 NUSO, LLC EASTON VoIP 242 active
667-413 NUSO, LLC ARGRGBSNIS VoIP 238 active
667-414 BANDWIDTH.COM CLEC, LLC - MD BALTIMORE VoIP 238 active
667-415 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ABERDEEN Wireless 238 active
667-416 BANDWIDTH.COM CLEC, LLC - MD ESSEX VoIP 238 active
667-417 BANDWIDTH.COM CLEC, LLC - MD GLENBURNIE VoIP 238 active
667-418 COMCAST IP PHONE, LLC GREENSBORO VoIP 242 active
667-419 NEW CINGULAR WIRELESS PCS, LLC - DC CATONSVL Wireless 238 active
667-420 BOOST SUBSCRIBERCO L.L.C. FEDERALSBG Wireless 242 active
667-421 TELNYX LLC COLUMBIA VoIP 238 active
667-422 CENTURYLINK COMMUNICATIONS, LLC BALTIMORE VoIP 238 active
667-423 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ANNAPOLIS Wireless 238 active
667-424 MCIMETRO ACCESS TRANSMISSION SERVICES LLC ODENTON Landline 238 active
667-425 NUSO, LLC BALTIMORE VoIP 238 active
667-426 ONVOY, LLC - MD TANEYTOWN Landline 238 active
667-427 ONVOY, LLC - MD WEST RIVER Landline 238 active
667-428 NUSO, LLC SALISBURY VoIP 242 active
667-429 NEW CINGULAR WIRELESS PCS, LLC - DC PIKESVILLE Wireless 238 active
667-430 NEW CINGULAR WIRELESS PCS, LLC - DC PIKESVILLE Wireless 238 active
667-431 METROPCS, INC. ARBUTUS Wireless 238 active
667-432 NEW CINGULAR WIRELESS PCS, LLC - DC CATONSVL Wireless 238 active
667-433 NEW CINGULAR WIRELESS PCS, LLC - DC CATONSVL Wireless 238 active
667-434 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC BALTIMORE Wireless 238 active
667-435 ONVOY, LLC - MD BALTIMORE Landline 238 active
667-436 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC TOWSON Wireless 238 active
667-437 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC BALTIMORE Wireless 238 active
667-438 NEW CINGULAR WIRELESS PCS, LLC - DC CATONSVL Wireless 238 active
667-439 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC PIKESVILLE Wireless 238 active
667-440 ONVOY, LLC - MD BALTIMORE Landline 238 active
667-441 NEW CINGULAR WIRELESS PCS, LLC - DC PARKVILLE Wireless 238 active
667-442 NEW CINGULAR WIRELESS PCS, LLC - DC ESSEX Wireless 238 active
667-443 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC CHASE Wireless 238 active
667-444 ONVOY, LLC - MD BALTIMORE Landline 238 active
667-445 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC CATONSVL Wireless 238 active
667-446 TON80 COMMUNICATIONS, LLC ELKRIDGE VoIP 238 active
667-447 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC COLUMBIA Wireless 238 active
667-448 NEW CINGULAR WIRELESS PCS, LLC - DC REISTERSTN Wireless 238 active
667-449 COMMIO, LLC PRESTON VoIP 242 active
667-450 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ABERDEEN Wireless 238 active
667-451 NEW CINGULAR WIRELESS PCS, LLC - DC FORK Wireless 238 active
667-452 NEW CINGULAR WIRELESS PCS, LLC - DC CATONSVL Wireless 238 active
667-453 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC PRINCEFRCK Wireless 238 active
667-454 VONAGE AMERICA LLC BEL AIR VoIP 238 active
667-455 VONAGE AMERICA LLC EDGEWOOD VoIP 238 active
667-456 NEW CINGULAR WIRELESS PCS, LLC - DC DUNDALK Wireless 238 active
667-457 COMMIO, LLC CHURCHHILL VoIP 242 active
667-458 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD ANNAPOLIS Wireless 238 active
667-459 COMMIO, LLC OXFORD VoIP 242 active
667-460 NEW CINGULAR WIRELESS PCS, LLC - DC PIKESVILLE Wireless 238 active
667-461 FIVE9, INC. BALTIMORE VoIP 238 active
667-462 BOOST SUBSCRIBERCO L.L.C. ELKTON Wireless 238 active
667-463 FIVE9, INC. DARLINGTON VoIP 238 active
667-464 TON80 COMMUNICATIONS, LLC BALTIMORE VoIP 238 active
667-465 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ABERDEEN Wireless 238 active
667-466 TON80 COMMUNICATIONS, LLC HAVREGRACE VoIP 238 active
667-467 ONVOY SPECTRUM, LLC DENTON Wireless 242 active
667-468 TON80 COMMUNICATIONS, LLC NANTICOKE VoIP 242 active
667-469 ONVOY, LLC - MD BEL AIR Landline 238 active
667-470 NEW CINGULAR WIRELESS PCS, LLC - DC GLENBURNIE Wireless 238 active
667-471 NEW CINGULAR WIRELESS PCS, LLC - DC PIKESVILLE Wireless 238 active
667-472 ONVOY, LLC - MD PRINCEANNE Landline 242 active
667-473 CORE COMMUNICATIONS, INC.- MD SOLOMONS Landline 238 active
667-474 ONVOY, LLC - MD ARGRGBSNIS Landline 238 active
667-475 ONVOY, LLC - MD CROFTON Landline 238 active
667-476 ONVOY, LLC - MD GLENWOOD Landline 238 active
667-477 ONVOY, LLC - MD HAMPSTEAD Landline 238 active
667-478 ONVOY, LLC - MD SYKESVILLE Landline 238 active
667-479 ONVOY, LLC - MD ELLICOTTCY Landline 238 active
667-480 ONVOY, LLC - MD WATERLO236 Landline 236 active
667-481 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ABERDEEN Wireless 238 active
667-482 NEW CINGULAR WIRELESS PCS, LLC - DC CATONSVL Wireless 238 active
667-483 TON80 COMMUNICATIONS, LLC DEALISLAND VoIP 242 active
667-484 BOOST SUBSCRIBERCO L.L.C. WESTMINSTR Wireless 238 active
667-485 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD CAMBRIDGE Wireless 242 active
667-486 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC PRINCEFRCK Wireless 238 active
667-487 CALLWORKS CORPORATION BALTIMORE VoIP 238 active
667-488 CALLWORKS CORPORATION SALISBURY VoIP 242 active
667-489 ONVOY, LLC - MD HAMPSTEAD Landline 238 active
667-490 NEW CINGULAR WIRELESS PCS, LLC - DC PIKESVILLE Wireless 238 active
667-491 NEW CINGULAR WIRELESS PCS, LLC - DC PIKESVILLE Wireless 238 active
667-492 MCIMETRO ACCESS TRANSMISSION SERVICES LLC SEVERN Landline 238 active
667-493 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ANNAPOLIS Wireless 238 active
667-494 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ABERDEEN Wireless 238 active
667-495 LEAP TELECOM, LLC BALTIMORE VoIP 238 active
667-496 LEAP TELECOM, LLC SALISBURY VoIP 242 active
667-497 AT&T - LOCAL OCEAN CITY Landline 242 active
667-498 AT&T - LOCAL ARBUTUS Landline 238 active
667-499 NEW CINGULAR WIRELESS PCS, LLC - DC PIKESVILLE Wireless 238 active
667-500 CORE COMMUNICATIONS, INC.- MD ANNAPOLIS Landline 238 active
667-501 NEW CINGULAR WIRELESS PCS, LLC - DC DUNDALK Wireless 238 active
667-502 NEW CINGULAR WIRELESS PCS, LLC - DC COLUMBIA Wireless 238 active
667-503 ONVOY SPECTRUM, LLC BALTIMORE Wireless 238 active
667-504 NEW CINGULAR WIRELESS PCS, LLC - DC BALTIMORE Wireless 238 active
667-505 NEW CINGULAR WIRELESS PCS, LLC - DC PIKESVILLE Wireless 238 active
667-506 NEW CINGULAR WIRELESS PCS, LLC - DC BALTIMORE Wireless 238 active
667-507 NEW CINGULAR WIRELESS PCS, LLC - DC SEVERN Wireless 238 active
667-508 NEW CINGULAR WIRELESS PCS, LLC - DC WOODLAWN Wireless 238 active
667-509 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC SEVERNA PK Wireless 238 active
667-510 NEW CINGULAR WIRELESS PCS, LLC - DC PIKESVILLE Wireless 238 active
667-512 NEW CINGULAR WIRELESS PCS, LLC - DC PIKESVILLE Wireless 238 active
667-513 LEAP TELECOM, LLC BALTIMORE VoIP 238 active
667-514 NEW CINGULAR WIRELESS PCS, LLC - DC BALTIMORE Wireless 238 active
667-515 NEW CINGULAR WIRELESS PCS, LLC - DC BALTIMORE Wireless 238 active
667-516 NEW CINGULAR WIRELESS PCS, LLC - DC BALTIMORE Wireless 238 active
667-517 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC CATONSVL Wireless 238 active
667-518 NEW CINGULAR WIRELESS PCS, LLC - DC BALTIMORE Wireless 238 active
667-519 NEW CINGULAR WIRELESS PCS, LLC - DC BALTIMORE Wireless 238 active
667-520 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ABERDEEN Wireless 238 active
667-521 NEW CINGULAR WIRELESS PCS, LLC - DC PIKESVILLE Wireless 238 active
667-522 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ABERDEEN Wireless 238 active
667-523 TELEPORT COMMUNICATIONS AMERICA, LLC - MD ODENTON VoIP 238 active
667-524 BANDWIDTH.COM CLEC, LLC - MD SALISBURY VoIP 242 active
667-525 ONVOY, LLC - MD BALTIMORE Landline 238 active
667-526 TON80 COMMUNICATIONS, LLC CENTREVL VoIP 242 active
667-527 BOOST SUBSCRIBERCO L.L.C. GLENBURNIE Wireless 238 active
667-528 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ABERDEEN Wireless 238 active
667-529 FRACTEL, LLC HURLOCK VoIP 242 active
667-530 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ABERDEEN Landline active
667-531 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ABERDEEN Landline active
667-532 ONVOY, LLC - MD PARKVILLE Landline active
667-533 WAVENATION, LLC PIKESVILLE Landline active
667-534 WAVENATION, LLC SALISBURY Landline active
667-535 BOOST SUBSCRIBERCO L.L.C. RISING SUN Landline active
667-536 BOOST SUBSCRIBERCO L.L.C. STILL POND Landline active
667-537 NEW CINGULAR WIRELESS PCS, LLC - DC ESSEX Landline active
667-538 ONVOY, LLC - MD CHURCHVL Landline active
667-539 NEW CINGULAR WIRELESS PCS, LLC - DC BALTIMORE Landline active
667-540 NEW CINGULAR WIRELESS PCS, LLC - DC PIKESVILLE Landline active
667-541 Landline active
667-542 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ABERDEEN Landline active
667-543 Landline active
667-544 Landline active
667-545 CORE COMMUNICATIONS, INC.- MD WARWICK Landline 242 active
667-546 Landline active
667-547 Landline active
667-548 Landline active
667-549 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC ANNAPOLIS Landline active
667-550 Landline active
667-551 Landline active
667-552 Landline active
667-553 Landline active
667-554 Landline active
667-556 Landline active
667-557 Landline active
667-558 Landline active
667-559 Landline active
667-560 Landline active
667-561 Landline active
667-562 Landline active
667-563 Landline active
667-564 Landline active
667-565 Landline active
667-566 COMMIO, LLC STEVENSVL VoIP 242 active
667-567 ONVOY, LLC - MD HAVREGRACE Landline 238 active
667-568 Landline active
667-569 Landline active
667-570 Landline active
667-571 Landline active
667-572 Landline active
667-573 Landline active
667-574 Landline active
667-575 Landline active
667-576 ONVOY, LLC - MD JARRETTSVL Landline 238 active
667-577 FRACTEL, LLC ELKTON VoIP 238 active
667-578 Landline active
667-579 Landline active
667-580 Landline active
667-581 Landline active
667-582 Landline active
667-583 Landline active
667-584 Landline active
667-585 Landline active
667-586 Landline active
667-587 Landline active
667-588 Landline active
667-589 Landline active
667-590 Landline active
667-591 Landline active
667-592 Landline active
667-593 Landline active
667-594 Landline active
667-595 Landline active
667-596 NEW CINGULAR WIRELESS PCS, LLC - DC PIKESVILLE Wireless 238 active
667-597 Landline active
667-598 Landline active
667-599 Landline active
667-600 EVOLVE CELLULAR, INC. BALTIMORE Wireless 238 active
667-601 Landline active
667-602 Landline active
667-603 Landline active
667-604 Landline active
667-605 Landline active
667-606 Landline active
667-607 Landline active
667-608 Landline active
667-609 Landline active
667-610 Landline active
667-612 Landline active
667-613 Landline active
667-614 Landline active
667-615 Landline active
667-616 Landline active
667-617 Landline active
667-618 Landline active
667-619 Landline active
667-620 Landline active
667-621 Landline active
667-622 TON80 COMMUNICATIONS, LLC PIKESVILLE VoIP 238 active
667-623 Landline active
667-624 Landline active
667-625 Landline active
667-626 TON80 COMMUNICATIONS, LLC CATONSVL VoIP 238 active
667-627 CORE COMMUNICATIONS, INC.- MD ANNAPOLIS Landline 238 active
667-628 Landline active
667-629 Landline active
667-630 Landline active
667-631 Landline active
667-632 Landline active
667-633 Landline active
667-634 Landline active
667-635 Landline active
667-636 Landline active
667-637 Landline active
667-638 Landline active
667-639 Landline active
667-640 Landline active
667-641 Landline active
667-642 Landline active
667-643 Landline active
667-644 ONVOY SPECTRUM, LLC SEVERNA PK Wireless 238 active
667-645 Landline active
667-646 TON80 COMMUNICATIONS, LLC ANNAPOLIS VoIP 238 active
667-647 ONVOY SPECTRUM, LLC NORTH EAST Wireless 238 active
667-648 Landline active
667-649 Landline active
667-650 Landline active
667-651 Landline active
667-652 Landline active
667-653 CORE COMMUNICATIONS, INC.- MD BRYNPKLNCM Landline 238 active
667-654 Landline active
667-655 Landline active
667-656 ONVOY SPECTRUM, LLC EDGEWOOD Wireless 238 active
667-657 ONVOY, LLC - MD CHASE Landline 238 active
667-658 Landline active
667-659 Landline active
667-660 ONVOY, LLC - MD MARION Landline 242 active
667-661 ONVOY, LLC - MD SNOW HILL Landline 242 active
667-662 ONVOY, LLC - MD SMITH IS Landline 242 active
667-663 ONVOY, LLC - MD OCEAN CITY Landline 242 active
667-664 ONVOY, LLC - MD TRAPPE Landline 242 active
667-665 ONVOY SPECTRUM, LLC HILLSBORO Wireless 242 active
667-666 ONVOY, LLC - MD WEST RIVER Landline 238 active
667-667 ONVOY, LLC - MD PIKESVILLE Landline 238 active
667-668 ONVOY SPECTRUM, LLC FALLSTON Wireless 238 active
667-669 ONVOY SPECTRUM, LLC GALENA Wireless 242 active
667-670 ONVOY, LLC - MD SUDLERSVL Landline 242 active
667-671 Landline active
667-672 Landline active
667-673 Landline active
667-674 Landline active
667-675 Landline active
667-676 ONVOY, LLC - MD WILLARDS Landline 242 active
667-677 ONVOY, LLC - MD BALTIMORE Landline 238 active
667-678 ONVOY, LLC - MD COLUMBIA Landline 238 active
667-679 Landline active
667-680 Landline active
667-681 Landline active
667-682 Landline active
667-683 Landline active
667-684 Landline active
667-685 Landline active
667-686 CORE COMMUNICATIONS, INC.- MD ELLICOTTCY Landline 238 active
667-687 ONVOY, LLC - MD WARWICK Landline 242 active
667-688 FRACTEL, LLC PARKVILLE VoIP 238 active
667-689 Landline active
667-690 Landline active
667-691 Landline active
667-692 Landline active
667-693 TON80 COMMUNICATIONS, LLC VIENNA VoIP 242 active
667-694 Landline active
667-695 Landline active
667-696 Landline active
667-697 Landline active
667-698 Landline active
667-699 Landline active
667-701 NEW CINGULAR WIRELESS PCS, LLC - DC ELKRIDGE Wireless 238 active
667-702 Landline active
667-703 Landline active
667-704 Landline active
667-705 Landline active
667-706 OMNIPOINT COMMUNICATIONS ENTERPRISES, LP ELKTON Wireless 238 active
667-707 Landline active
667-708 Landline active
667-709 Landline active
667-710 Landline active
667-712 Landline active
667-713 Landline active
667-714 Landline active
667-715 Landline active
667-716 Landline active
667-717 Landline active
667-718 Landline active
667-719 Landline active
667-720 Landline active
667-721 Landline active
667-722 CORE COMMUNICATIONS, INC.- MD GLENWOOD Landline 238 active
667-723 Landline active
667-724 Landline active
667-725 Landline active
667-726 Landline active
667-727 CORE COMMUNICATIONS, INC.- MD SUDLERSVL Landline 242 active
667-728 Landline active
667-729 Landline active
667-730 Landline active
667-731 Landline active
667-732 Landline active
667-733 Landline active
667-734 Landline active
667-735 Landline active
667-736 Landline active
667-737 TON80 COMMUNICATIONS, LLC PERRYVILLE VoIP 238 active
667-738 Landline active
667-739 Landline active
667-740 Landline active
667-741 Landline active
667-742 Landline active
667-743 TON80 COMMUNICATIONS, LLC QUEENSTOWN VoIP 242 active
667-744 Landline active
667-745 Landline active
667-746 TON80 COMMUNICATIONS, LLC GLENWOOD VoIP 238 active
667-747 Landline active
667-748 Landline active
667-749 Landline active
667-750 Landline active
667-751 Landline active
667-752 Landline active
667-753 Landline active
667-754 Landline active
667-755 QUANTUM TELECOMMUNICATIONS, INC. - MD PIKESVILLE Landline 238 active
667-756 Landline active
667-757 Landline active
667-758 FRACTEL, LLC SILVER RUN VoIP 238 active
667-759 Landline active
667-760 Landline active
667-761 Landline active
667-762 Landline active
667-763 Landline active
667-764 Landline active
667-765 Landline active
667-766 ONVOY, LLC - MD STEVENSVL Landline 242 active
667-767 ONVOY, LLC - MD STMICHAELS Landline 242 active
667-768 Landline active
667-769 Landline active
667-770 AIRUS, INC. - MD BALTIMORE Landline 238 active
667-771 WIDE VOICE, LLC - MD BALTIMORE Landline 238 active
667-772 ONVOY SPECTRUM, LLC SPARKSGLNC Wireless 238 active
667-773 Landline active
667-774 Landline active
667-775 ONVOY SPECTRUM, LLC MILLINGTON Wireless 242 active
667-776 HD CARRIER LLC BALTIMORE VoIP 238 active
667-777 PEERLESS NETWORK OF MARYLAND, LLC SEVERNA PK Landline 238 active
667-778 ONVOY SPECTRUM, LLC SPARROWSPT Wireless 238 active
667-779 Landline active
667-780 Landline active
667-781 Landline active
667-782 Landline active
667-783 Landline active
667-784 Landline active
667-785 Landline active
667-786 TELEPORT COMMUNICATIONS AMERICA, LLC - MD COLUMBIA Landline 238 active
667-787 Landline active
667-788 QUANTUM TELECOMMUNICATIONS, INC. - MD WESTMINSTR Landline 238 active
667-789 Landline active
667-790 Landline active
667-791 Landline active
667-792 Landline active
667-793 Landline active
667-794 Landline active
667-795 Landline active
667-796 Landline active
667-797 Landline active
667-798 Landline active
667-799 Landline active
667-800 ONVOY, LLC - MD SALISBURY Landline 242 active
667-801 Landline active
667-802 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC CATONSVL Wireless 238 active
667-803 BANDWIDTH.COM CLEC, LLC - MD SOLOMONS VoIP 238 active
667-804 Landline active
667-805 Landline active
667-806 Landline active
667-807 Landline active
667-808 PEERLESS NETWORK OF MARYLAND, LLC EASTON Landline 242 active
667-809 Landline active
667-810 ONVOY, LLC - MD SALISBURY Landline 242 active
667-812 VERIZON MARYLAND, INC. WATERLO236 Landline 236 active
667-813 Landline active
667-814 Landline active
667-815 Landline active
667-816 Landline active
667-817 Landline active
667-818 Landline active
667-819 Landline active
667-820 Landline active
667-821 Landline active
667-822 Landline active
667-823 Landline active
667-824 TON80 COMMUNICATIONS, LLC EDGEWOOD VoIP 238 active
667-825 Landline active
667-826 Landline active
667-827 TON80 COMMUNICATIONS, LLC BERLIN VoIP 242 active
667-828 Landline active
667-829 Landline active
667-830 Landline active
667-831 Landline active
667-832 TON80 COMMUNICATIONS, LLC BRYNPKLNCM VoIP 238 active
667-833 Landline active
667-834 Landline active
667-835 Landline active
667-836 Landline active
667-837 CORE COMMUNICATIONS, INC.- MD PT DEPOSIT Landline 238 active
667-838 Landline active
667-839 Landline active
667-840 Landline active
667-841 Landline active
667-842 FRACTEL, LLC WOODLAWN VoIP 238 active
667-843 CORE COMMUNICATIONS, INC.- MD DEALISLAND Landline 242 active
667-844 Landline active
667-845 Landline active
667-846 TON80 COMMUNICATIONS, LLC COCKEYSVL VoIP 238 active
667-847 Landline active
667-848 TON80 COMMUNICATIONS, LLC ABERDEEN VoIP 238 active
667-849 Landline active
667-850 Landline active
667-851 Landline active
667-852 Landline active
667-853 CORETEL MARYLAND, INC. - MD POCOMOKE Landline 242 active
667-854 Landline active
667-855 TERRA NOVA TELECOM INC. SALISBURY VoIP 242 active
667-856 TON80 COMMUNICATIONS, LLC DUNDALK VoIP 238 active
667-857 Landline active
667-858 Landline active
667-859 Landline active
667-860 Landline active
667-861 Landline active
667-862 Landline active
667-863 Landline active
667-864 Landline active
667-865 Landline active
667-866 CORE COMMUNICATIONS, INC.- MD DARLINGTON Landline 238 active
667-867 COMMIO, LLC BALTIMORE VoIP 238 active
667-868 CHARTER IP ENABLED SERVICES, LLC CRISFIELD VoIP 242 active
667-869 Landline active
667-870 Landline active
667-871 Landline active
667-872 Landline active
667-873 Landline active
667-874 Landline active
667-875 Landline active
667-876 CORE COMMUNICATIONS, INC.- MD ANNAPOLIS Landline 238 active
667-877 COMMIO, LLC PIKESVILLE VoIP 238 active
667-878 Landline active
667-879 Landline active
667-880 Landline active
667-881 Landline active
667-882 Landline active
667-883 Landline active
667-884 Landline active
667-885 Landline active
667-886 Landline active
667-887 ONVOY, LLC - MD WORTHINGTN Landline 238 active
667-888 ONVOY, LLC - MD BALTIMORE Landline 238 active
667-889 Landline active
667-890 TELEPORT COMMUNICATIONS AMERICA, LLC - MD ODENTON VoIP 238 active
667-891 TELEPORT COMMUNICATIONS AMERICA, LLC - MD ODENTON VoIP 238 active
667-892 TELEPORT COMMUNICATIONS AMERICA, LLC - MD ODENTON VoIP 238 active
667-893 TELEPORT COMMUNICATIONS AMERICA, LLC - MD ODENTON VoIP 238 active
667-894 TELEPORT COMMUNICATIONS AMERICA, LLC - MD ODENTON VoIP 238 active
667-895 TWILIO INTERNATIONAL, INC. BALTIMORE VoIP 238 active
667-896 Landline active
667-897 TWILIO INTERNATIONAL, INC. CHESAPKECY VoIP 242 active
667-898 Landline active
667-899 FRACTEL, LLC BALTIMORE VoIP 238 active
667-900 TERRA NOVA TELECOM INC. BALTIMORE VoIP 238 active
667-901 Landline active
667-902 Landline active
667-903 Landline active
667-904 Landline active
667-905 Landline active
667-906 Landline active
667-907 Landline active
667-908 Landline active
667-909 Landline active
667-910 ONVOY, LLC - MD BALTIMORE Landline 238 active
667-912 Landline active
667-913 Landline active
667-914 Landline active
667-915 Landline active
667-916 Landline active
667-917 Landline active
667-918 Landline active
667-919 Landline active
667-920 Landline active
667-921 Landline active
667-922 Landline active
667-923 Landline active
667-924 Landline active
667-925 CORETEL MARYLAND, INC. - MD BEL AIR Landline 238 active
667-926 Landline active
667-927 Landline active
667-928 Landline active
667-929 Landline active
667-930 RCLEC, INC. BALTIMORE VoIP 238 active
667-931 Landline active
667-932 Landline active
667-933 Landline active
667-934 Landline active
667-935 Landline active
667-936 Landline active
667-937 Landline active
667-938 Landline active
667-939 Landline active
667-940 Landline active
667-941 Landline active
667-942 TON80 COMMUNICATIONS, LLC ABERDEEN VoIP 238 active
667-943 Landline active
667-944 Landline active
667-945 Landline active
667-946 CORE COMMUNICATIONS, INC.- MD CHURCHVL Landline 238 active
667-947 Landline active
667-948 Landline active
667-949 Landline active
667-951 Landline active
667-952 Landline active
667-953 Landline active
667-954 Landline active
667-955 Landline active
667-956 Landline active
667-957 Landline active
667-960 Landline active
667-961 Landline active
667-962 ONVOY, LLC - MD NORTHBEACH Landline 238 active
667-963 Landline active
667-964 Landline active
667-965 Landline active
667-966 ONVOY, LLC - MD NEWWINDSOR Landline 238 active
667-967 BARR TELL USA, INC. GLENBURNIE Landline 238 active
667-968 Landline active
667-969 Landline active
667-970 Landline active
667-971 Landline active
667-972 Landline active
667-973 Landline active
667-974 Landline active
667-975 Landline active
667-977 FRACTEL, LLC SALISBURY VoIP 242 active
667-978 Landline active
667-979 Landline active
667-980 Landline active
667-981 Landline active
667-982 Landline active
667-983 Landline active
667-984 Landline active
667-985 Landline active
667-986 Landline active
667-987 Landline active
667-988 Landline active
667-989 Landline active
667-990 Landline active
667-991 Landline active
667-992 Landline active
667-993 Landline active
667-994 Landline active
667-995 Landline active
667-996 Landline active
667-997 Landline active
667-998 Landline active
667-999 ONVOY, LLC - MD ELKRIDGE Landline 238 active

Area code 667 shares its geographic region with the following overlay area codes:

410 443