| NPA NXX | Location | Company | | 443-200 | WOODLAWN, MD | XO COMMUNICATIONS | | 443-203 | WEST RIVER, MD | VERIZON MARYLAND | | 443-204 | PIKESVILLE, MD | AT&T MOBILITY | | 443-205 | CAMBRIDGE, MD | SPRINT NEXTEL | | 443-206 | PERRYVILLE, MD | VERIZON WIRELESS | | 443-207 | ELKTON, MD | T-MOBILE | | 443-208 | ESSEX, MD | VERIZON MARYLAND | | 443-209 | HAVRE DE GRACE, MD | CAVALIER TELEPHONE | | 443-211 | COMMUNITY SUPPORT AND REFERRAL SERVICES, MD | MULTIPLE OCN LISTING | | 443-212 | SPARKS-GLENCOE, MD | US LEC | | 443-213 | PIKESVILLE, MD | VERIZON MARYLAND | | 443-215 | CHESTERTOWN, MD | CORETEL - MD | | 443-216 | DUNDALK, MD | CAVALIER TELEPHONE | | 443-217 | ANNAPOLIS, MD | CORETEL - MD | | 443-218 | WORTHINGTON, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-219 | PARKVILLE, MD | LEVEL 3 | | 443-220 | BALTIMORE, MD | VERIZON MARYLAND | | 443-221 | ANNAPOLIS, MD | LEVEL 3 | | 443-222 | WORTHINGTON, MD | GLOBAL NAPS | | 443-223 | ANNAPOLIS, MD | VERIZON WIRELESS | | 443-224 | BALTIMORE, MD | VERIZON BUSINESS | | 443-225 | CAMBRIDGE, MD | SPRINT NEXTEL | | 443-226 | BALTIMORE, MD | SPRINT PCS | | 443-227 | PORT DEPOSIT, MD | GLOBAL NAPS | | 443-228 | CHASE, MD | US LEC | | 443-229 | SEVERNA PARK, MD | CAVALIER TELEPHONE | | 443-230 | ODENTON, MD | GLOBAL NAPS | | 443-231 | ESSEX, MD | AT&T LOCAL | | 443-232 | WILLARDS, MD | CAVALIER TELEPHONE | | 443-233 | VIENNA, MD | CAVALIER TELEPHONE | | 443-234 | SNOW HILL, MD | CAVALIER TELEPHONE | | 443-235 | SALISBURY, MD | VERIZON WIRELESS | | 443-236 | CARDIFF, MD | CORETEL - MD | | 443-237 | NORTH BEACH, MD | CORETEL - MD | | 443-238 | PARKTON, MD | GLOBAL NAPS | | 443-239 | EASTON, MD | AT&T MOBILITY | | 443-241 | WESTMINSTER, MD | GLOBAL NAPS | | 443-242 | SPARROWS POINT, MD | CAVALIER TELEPHONE | | 443-243 | FALLSTON, MD | VERIZON WIRELESS | | 443-244 | WESTMINSTER, MD | LEVEL 3 | | 443-245 | ELKTON, MD | CAVALIER TELEPHONE | | 443-246 | ELKTON, MD | CORETEL - MD | | 443-247 | UNION BRIDGE, MD | GLOBAL NAPS | | 443-248 | BALTIMORE, MD | VERIZON WIRELESS | | 443-249 | STEVENSVILLE, MD | VERIZON MARYLAND | | 443-250 | BALTIMORE, MD | SPRINT NEXTEL | | 443-252 | PERRYVILLE, MD | VERIZON WIRELESS | | 443-253 | BALTIMORE, MD | AT&T MOBILITY | | 443-254 | ANNAPOLIS, MD | T-MOBILE | | 443-255 | BALTIMORE, MD | AT&T MOBILITY | | 443-256 | NORTH EAST, MD | GLOBAL NAPS | | 443-257 | BALTIMORE, MD | VERIZON WIRELESS | | 443-258 | EASTON, MD | AT&T MOBILITY | | 443-259 | COLUMBIA, MD | VERIZON MARYLAND | | 443-260 | SALISBURY, MD | VERIZON MARYLAND | | 443-261 | SEVERNA PARK, MD | VERIZON BUSINESS | | 443-262 | CENTREVILLE, MD | VERIZON MARYLAND | | 443-263 | BALTIMORE, MD | VERIZON MARYLAND | | 443-264 | PIKESVILLE, MD | GLOBAL NAPS | | 443-265 | FORK, MD | CAVALIER TELEPHONE | | 443-266 | GLENWOOD, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-267 | DARLINGTON, MD | TCG | | 443-268 | BALTIMORE, MD | CORETEL - MD | | 443-269 | TOWSON, MD | GLOBAL NAPS | | 443-270 | GLEN BURNIE, MD | PAETEC COMMUNICATIONS | | 443-271 | BALTIMORE, MD | SPRINT NEXTEL | | 443-272 | RANDALLSTOWN, MD | TCG | | 443-273 | REISTERSTOWN, MD | TCG | | 443-274 | SEVERN, MD | VERIZON MARYLAND | | 443-275 | TOWSON, MD | COMCAST DIGITAL PHONE | | 443-276 | COLUMBIA, MD | XO COMMUNICATIONS | | 443-277 | SYKESVILLE, MD | SPRINT NEXTEL | | 443-278 | BALTIMORE, MD | GLOBAL TELECOM BROKERS | | 443-279 | TOWSON, MD | XO COMMUNICATIONS | | 443-280 | SYKESVILLE, MD | AT&T MOBILITY | | 443-281 | COCKEYSVILLE, MD | XO COMMUNICATIONS | | 443-282 | CHESTERTOWN, MD | SPRINT NEXTEL | | 443-283 | COLUMBIA, MD | PAETEC COMMUNICATIONS | | 443-284 | WATERLOO 238, MD | GLOBAL NAPS | | 443-285 | COLUMBIA, MD | VERIZON MARYLAND | | 443-286 | BALTIMORE, MD | VERIZON WIRELESS | | 443-287 | BALTIMORE, MD | VERIZON MARYLAND | | 443-288 | ELLICOTT CITY, MD | XO COMMUNICATIONS | | 443-290 | PARKVILLE, MD | TW TELECOM | | 443-291 | HAMPSTEAD, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-292 | CROFTON, MD | LEVEL 3 | | 443-293 | WESTMINSTER, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-294 | WEST RIVER, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-295 | PRINCE FREDERICK, MD | LEVEL 3 | | 443-296 | WATERLOO 238, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-297 | ARBUTUS, MD | TCG | | 443-298 | EASTON, MD | AT&T MOBILITY | | 443-299 | FALLSTON, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-300 | SYKESVILLE, MD | LEVEL 3 | | 443-302 | CROFTON, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-303 | ABERDEEN, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-304 | ARBUTUS, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-305 | ARMIGER-GIBSON ISLAND, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-306 | SEVERNA PARK, MD | SPRINT PCS | | 443-307 | BEL AIR, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-308 | SEVERN, MD | XO COMMUNICATIONS | | 443-309 | ELKTON, MD | SPRINT NEXTEL | | 443-310 | BALTIMORE, MD | AT&T MOBILITY | | 443-311 | NON EMERGENCY POLICE AND OTHER GOVERNMENTAL SERVICES, MD | MULTIPLE OCN LISTING | | 443-312 | BROOKLYN PARK-LINTHICUM, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-313 | FORK, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-315 | CATONSVILLE, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-316 | WOODLAWN, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-317 | CHASE, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-318 | COCKEYSVILLE, MD | CAVALIER TELEPHONE | | 443-319 | COLUMBIA, MD | CAVALIER TELEPHONE | | 443-320 | BALTIMORE, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-321 | ANNAPOLIS, MD | PAETEC COMMUNICATIONS | | 443-322 | TOWSON, MD | CAVALIER TELEPHONE | | 443-323 | SHARPTOWN, MD | CAVALIER TELEPHONE | | 443-324 | BALTIMORE, MD | SPRINT NEXTEL | | 443-325 | ELLICOTT CITY, MD | CAVALIER TELEPHONE | | 443-326 | BALTIMORE, MD | AT&T MOBILITY | | 443-327 | ABERDEEN, MD | CAVALIER TELEPHONE | | 443-328 | SYKESVILLE, MD | GLOBAL NAPS | | 443-329 | WATERLOO 236, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-330 | COCKEYSVILLE, MD | CAVALIER TELEPHONE | | 443-331 | TANEYTOWN, MD | GLOBAL NAPS | | 443-332 | CROFTON, MD | CAVALIER TELEPHONE | | 443-333 | ANNAPOLIS, MD | CRICKET COMMUNICATIONS | | 443-334 | PIKESVILLE, MD | XO COMMUNICATIONS | | 443-335 | BROOKLYN PARK-LINTHICUM, MD | GLOBAL NAPS | | 443-336 | ANNAPOLIS, MD | SPRINT NEXTEL | | 443-337 | SPARROWS POINT, MD | GLOBAL NAPS | | 443-338 | SPARKS-GLENCOE, MD | GLOBAL NAPS | | 443-339 | SHERWOOD FOREST, MD | GLOBAL NAPS | | 443-340 | WESTMINSTER, MD | VERIZON WIRELESS | | 443-341 | CATONSVILLE, MD | LEVEL 3 | | 443-342 | SOLOMONS, MD | GLOBAL NAPS | | 443-343 | MILLERSVILLE, MD | TCG | | 443-344 | SEVERNA PARK, MD | CORETEL - MD | | 443-345 | ABERDEEN, MD | LEVEL 3 | | 443-346 | SEVERNA PARK, MD | GLOBAL NAPS | | 443-347 | CARDIFF, MD | GLOBAL NAPS | | 443-348 | WOODLAWN, MD | TCG | | 443-349 | SILVER RUN, MD | CORETEL - MD | | 443-350 | ELKTON, MD | VERIZON WIRELESS | | 443-351 | ODENTON, MD | US LEC | | 443-352 | PIKESVILLE, MD | AT&T LOCAL | | 443-353 | COCKEYSVILLE, MD | VERIZON MARYLAND | | 443-354 | GLEN BURNIE, MD | LEVEL 3 | | 443-355 | ELLICOTT CITY, MD | LEVEL 3 | | 443-356 | BEL AIR, MD | LEVEL 3 | | 443-357 | PIKESVILLE, MD | VERIZON MARYLAND | | 443-359 | DELMAR, MD | VERIZON WIRELESS | | 443-360 | ABERDEEN, MD | TCG | | 443-361 | SYKESVILLE, MD | CORETEL - MD | | 443-362 | EASTON, MD | T-MOBILE | | 443-363 | SEVERN, MD | GLOBAL NAPS | | 443-364 | ELLICOTT CITY, MD | TCG | | 443-365 | SALISBURY, MD | T-MOBILE | | 443-366 | SALISBURY, MD | SPRINT PCS | | 443-367 | COLUMBIA, MD | VERIZON MARYLAND | | 443-368 | WESTMINSTER, MD | CORETEL - MD | | 443-369 | BEL AIR, MD | CORETEL - MD | | 443-370 | ANNAPOLIS, MD | AT&T MOBILITY | | 443-371 | BEL AIR, MD | LEVEL 3 | | 443-372 | EDGEWOOD, MD | US LEC | | 443-373 | OCEAN CITY, MD | SPRINT PCS | | 443-374 | ABERDEEN, MD | CAVALIER TELEPHONE | | 443-375 | HAMPSTEAD, MD | SPRINT NEXTEL | | 443-376 | DUNDALK, MD | TCG | | 443-377 | TOWSON, MD | VERIZON WIRELESS | | 443-378 | BALTIMORE, MD | SPRINT NEXTEL | | 443-379 | PIKESVILLE, MD | COMCAST DIGITAL PHONE | | 443-380 | WOODLAWN, MD | LEVEL 3 | | 443-381 | REISTERSTOWN, MD | GLOBAL NAPS | | 443-382 | CAMBRIDGE, MD | CORETEL - MD | | 443-383 | SILVER RUN, MD | GLOBAL NAPS | | 443-384 | PARKVILLE, MD | CAVALIER TELEPHONE | | 443-385 | EASTON, MD | CORETEL - MD | | 443-386 | BALTIMORE, MD | VERIZON WIRELESS | | 443-387 | POCOMOKE, MD | CORETEL - MD | | 443-388 | BALTIMORE, MD | VERIZON WIRELESS | | 443-389 | SALISBURY, MD | CORETEL - MD | | 443-390 | CHURCHVILLE, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-391 | COCKEYSVILLE, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-392 | BALTIMORE, MD | AT&T LOCAL | | 443-393 | COLUMBIA, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-394 | PIKESVILLE, MD | VERIZON MARYLAND | | 443-395 | ABERDEEN, MD | VERIZON MARYLAND | | 443-396 | ODENTON, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-397 | SALISBURY, MD | VERIZON WIRELESS | | 443-398 | SYKESVILLE, MD | SPRINT NEXTEL | | 443-399 | DUNDALK, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-400 | BROOKLYN PARK-LINTHICUM, MD | XO COMMUNICATIONS INC | | 443-402 | EDGEWOOD, MD | TCG | | 443-403 | ABERDEEN, MD | LEVEL 3 | | 443-404 | SOLOMONS, MD | SPRINT PCS | | 443-405 | RANDALLSTOWN, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-406 | ELKTON, MD | TCG | | 443-407 | DUNDALK, MD | XO COMMUNICATIONS | | 443-408 | SPARROWS POINT, MD | XO COMMUNICATIONS INC | | 443-409 | EDGEWOOD, MD | CAVALIER TELEPHONE | | 443-411 | 411 LOCAL DIRECTORY ASSISTANCE, MD | MULTIPLE OCN LISTING | | 443-412 | CHURCHVILLE, MD | TCG | | 443-413 | BALTIMORE, MD | SPRINT PCS | | 443-414 | BALTIMORE, MD | SPRINT PCS | | 443-415 | BALTIMORE, MD | SPRINT PCS | | 443-416 | BALTIMORE, MD | SPRINT PCS | | 443-417 | FALLSTON, MD | TCG | | 443-418 | BALTIMORE, MD | SPRINT PCS | | 443-419 | GLENWOOD, MD | CAVALIER TELEPHONE | | 443-420 | ELLICOTT CITY, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-421 | FORK, MD | AT&T MOBILITY | | 443-422 | GLEN BURNIE, MD | CRICKET COMMUNICATIONS | | 443-423 | BALTIMORE, MD | LEVEL 3 | | 443-424 | CARDIFF, MD | TCG | | 443-425 | PARKVILLE, MD | AT&T LOCAL | | 443-426 | RANDALLSTOWN, MD | PAETEC COMMUNICATIONS | | 443-427 | PRINCESS ANNE, MD | CORETEL - MD | | 443-428 | COCKEYSVILLE, MD | CORETEL - MD | | 443-429 | WOODLAWN, MD | CAVALIER TELEPHONE | | 443-430 | COLUMBIA, MD | XO COMMUNICATIONS INC | | 443-431 | RANDALLSTOWN, MD | GLOBAL NAPS | | 443-432 | PRINCE FREDERICK, MD | GLOBAL NAPS | | 443-433 | ANNAPOLIS, MD | XO COMMUNICATIONS INC | | 443-434 | FEDERALSBURG, MD | NATIONSLINE | | 443-436 | WOODLAWN, MD | VERIZON MARYLAND | | 443-437 | POCOMOKE, MD | NATIONSLINE | | 443-438 | BALTIMORE, MD | VERIZON WIRELESS | | 443-439 | TRAPPE, MD | NATIONSLINE | | 443-440 | ANNAPOLIS, MD | VERIZON MARYLAND | | 443-441 | GLENWOOD, MD | TCG | | 443-442 | PARKVILLE, MD | CAVALIER TELEPHONE | | 443-444 | BALTIMORE, MD | VERIZON MARYLAND | | 443-445 | ELKRIDGE, MD | VERIZON MARYLAND | | 443-446 | QUEENSTOWN, MD | NATIONSLINE | | 443-447 | BALTIMORE, MD | CRICKET COMMUNICATIONS | | 443-448 | DENTON, MD | NATIONSLINE | | 443-449 | BALTIMORE, MD | BROADVIEW NETWORKS | | 443-450 | PIKESVILLE, MD | LEVEL 3 | | 443-451 | BALTIMORE, MD | PAETEC COMMUNICATIONS | | 443-452 | BALTIMORE, MD | US LEC | | 443-453 | BALTIMORE, MD | NEUTRAL TANDEM | | 443-454 | ANNAPOLIS, MD | T-MOBILE | | 443-455 | BALTIMORE, MD | VERIZON MARYLAND | | 443-456 | EDGEWOOD, MD | AT&T LOCAL | | 443-457 | BROOKLYN PARK-LINTHICUM, MD | TCG | | 443-458 | ANNAPOLIS, MD | XO COMMUNICATIONS | | 443-459 | ELKRIDGE, MD | PAETEC COMMUNICATIONS | | 443-460 | ESSEX, MD | XO COMMUNICATIONS | | 443-461 | PARKVILLE, MD | US LEC | | 443-462 | BALTIMORE, MD | VERIZON WIRELESS | | 443-463 | BALTIMORE, MD | SPRINT NEXTEL | | 443-464 | CHURCHVILLE, MD | BROADVIEW NETWORKS | | 443-465 | TOWSON, MD | VERIZON WIRELESS | | 443-466 | ELKTON, MD | SPRINT PCS | | 443-467 | BALTIMORE, MD | CRICKET COMMUNICATIONS | | 443-468 | BALTIMORE, MD | SPRINT PCS | | 443-469 | BALTIMORE, MD | CRICKET COMMUNICATIONS | | 443-470 | TOWSON, MD | US LEC | | 443-471 | PIKESVILLE, MD | US LEC | | 443-472 | COLUMBIA, MD | LEVEL 3 | | 443-473 | BALTIMORE, MD | SPRINT PCS | | 443-474 | CATONSVILLE, MD | AT&T MOBILITY | | 443-476 | ANNAPOLIS, MD | VERIZON MARYLAND | | 443-477 | CAMBRIDGE, MD | VERIZON WIRELESS | | 443-478 | BALTIMORE, MD | VERIZON WIRELESS | | 443-479 | WATERLOO 236, MD | VERIZON MARYLAND | | 443-480 | CHESTERTOWN, MD | VERIZON WIRELESS | | 443-481 | ANNAPOLIS, MD | VERIZON MARYLAND | | 443-482 | ANNAPOLIS, MD | VERIZON MARYLAND | | 443-483 | CARDIFF, MD | LEVEL 3 | | 443-484 | EDGEWOOD, MD | LEVEL 3 | | 443-485 | ELKTON, MD | LEVEL 3 | | 443-486 | PRINCE FREDERICK, MD | LEVEL 3 | | 443-487 | WESTMINSTER, MD | LEVEL 3 | | 443-488 | BALTIMORE, MD | CRICKET COMMUNICATIONS | | 443-489 | CHASE, MD | TCG | | 443-490 | EDGEWOOD, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-491 | PARKTON, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-492 | ELKRIDGE, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-493 | DELMAR, MD | VERIZON WIRELESS | | 443-494 | MILLERSVILLE, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-495 | PARKVILLE, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-496 | EASTON, MD | SPRINT NEXTEL | | 443-497 | SALISBURY, MD | SPRINT NEXTEL | | 443-498 | CATONSVILLE, MD | XO COMMUNICATIONS | | 443-499 | JARRETTSVILLE, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-500 | BALTIMORE, MD | CRICKET COMMUNICATIONS | | 443-501 | PIKESVILLE, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-502 | HAVRE DE GRACE, MD | TCG | | 443-503 | DUNDALK, MD | XO COMMUNICATIONS INC | | 443-504 | FALLSTON, MD | CAVALIER TELEPHONE | | 443-505 | ESSEX, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-506 | BALTIMORE, MD | SPRINT NEXTEL | | 443-507 | HAMPSTEAD, MD | TCG | | 443-508 | HAMPSTEAD, MD | CAVALIER TELEPHONE | | 443-509 | BALTIMORE, MD | VERIZON WIRELESS | | 443-510 | ANNAPOLIS, MD | VERIZON WIRELESS | | 443-511 | TRAVEL INFORMATION SERVICES, MD | MULTIPLE OCN LISTING | | 443-512 | EDGEWOOD, MD | VERIZON MARYLAND | | 443-513 | BERLIN, MD | AT&T MOBILITY | | 443-514 | CATONSVILLE, MD | US LEC | | 443-515 | CAMBRIDGE, MD | VERIZON WIRELESS | | 443-516 | SYKESVILLE, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-517 | GLEN BURNIE, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-518 | COLUMBIA, MD | VERIZON MARYLAND | | 443-519 | TOWSON, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-520 | CATONSVILLE, MD | AT&T MOBILITY | | 443-521 | CAMBRIDGE, MD | VERIZON WIRELESS | | 443-522 | REISTERSTOWN, MD | PAETEC COMMUNICATIONS | | 443-523 | SALISBURY, MD | VERIZON MARYLAND | | 443-524 | BALTIMORE, MD | XO COMMUNICATIONS | | 443-525 | BALTIMORE, MD | CRICKET COMMUNICATIONS | | 443-526 | HAVRE DE GRACE, MD | GLOBAL NAPS | | 443-527 | BALTIMORE, MD | T-MOBILE | | 443-528 | BEL AIR, MD | SPRINT PCS | | 443-529 | BALTIMORE, MD | T-MOBILE | | 443-530 | DUNDALK, MD | PAETEC COMMUNICATIONS | | 443-531 | BALTIMORE, MD | CRICKET COMMUNICATIONS | | 443-532 | PRINCE FREDERICK, MD | SPRINT NEXTEL | | 443-533 | JARRETTSVILLE, MD | TCG | | 443-534 | ANNAPOLIS, MD | VERIZON WIRELESS | | 443-535 | COLUMBIA, MD | VERIZON MARYLAND | | 443-536 | WESTMINSTER, MD | SPRINT PCS | | 443-537 | COLUMBIA, MD | VERIZON MARYLAND | | 443-538 | COLUMBIA, MD | T-MOBILE | | 443-539 | COLUMBIA, MD | US LEC | | 443-540 | BALTIMORE, MD | AT&T MOBILITY | | 443-541 | COCKEYSVILLE, MD | PAETEC COMMUNICATIONS | | 443-542 | COLUMBIA, MD | COMCAST DIGITAL PHONE | | 443-543 | ARBUTUS, MD | VERIZON MARYLAND | | 443-544 | PIKESVILLE, MD | CAVALIER TELEPHONE | | 443-545 | COLUMBIA, MD | LEVEL 3 | | 443-546 | COLUMBIA, MD | VERIZON MARYLAND | | 443-547 | WESTMINSTER, MD | VERIZON WIRELESS | | 443-548 | PIKESVILLE, MD | XO COMMUNICATIONS | | 443-549 | DUNDALK, MD | US LEC | | 443-550 | NORTH BEACH, MD | CAVALIER TELEPHONE | | 443-551 | WOODLAWN, MD | LEVEL 3 | | 443-552 | BALTIMORE, MD | VERIZON MARYLAND | | 443-553 | ELKTON, MD | VERIZON WIRELESS | | 443-554 | CHASE, MD | T-MOBILE | | 443-555 | DIRECTORY ASSISTANCE, MD | MULTIPLE OCN LISTING | | 443-556 | COCKEYSVILLE, MD | VERIZON MARYLAND | | 443-557 | GLEN BURNIE, MD | XO COMMUNICATIONS | | 443-558 | ABERDEEN, MD | XO COMMUNICATIONS INC | | 443-559 | ESSEX, MD | COMCAST DIGITAL PHONE | | 443-561 | ELKRIDGE, MD | US LEC | | 443-562 | BALTIMORE, MD | AT&T MOBILITY | | 443-563 | BALTIMORE, MD | SPRINT NEXTEL | | 443-564 | TOWSON, MD | LEVEL 3 | | 443-565 | RANDALLSTOWN, MD | CAVALIER TELEPHONE | | 443-566 | CHESAPEAKE CITY, MD | VERIZON WIRELESS | | 443-567 | BEL AIR, MD | LEVEL 3 | | 443-568 | ARBUTUS, MD | XO COMMUNICATIONS | | 443-569 | ANNAPOLIS, MD | LEVEL 3 | | 443-570 | BALTIMORE, MD | T-MOBILE | | 443-572 | GLEN BURNIE, MD | VERIZON MARYLAND | | 443-573 | BALTIMORE, MD | US LEC | | 443-574 | ELLICOTT CITY, MD | US LEC | | 443-575 | ARBUTUS, MD | CAVALIER TELEPHONE | | 443-576 | RANDALLSTOWN, MD | XO COMMUNICATIONS | | 443-577 | GLEN BURNIE, MD | US LEC | | 443-578 | COCKEYSVILLE, MD | XO COMMUNICATIONS INC | | 443-579 | ESSEX, MD | US LEC | | 443-581 | CHASE, MD | GLOBAL NAPS | | 443-582 | CHURCHVILLE, MD | GLOBAL NAPS |
| | NPA NXX | Location | Company | | 443-583 | COLUMBIA, MD | GLOBAL NAPS | | 443-584 | CROFTON, MD | GLOBAL NAPS | | 443-585 | DARLINGTON, MD | GLOBAL NAPS | | 443-586 | DUNDALK, MD | GLOBAL NAPS | | 443-587 | EDGEWOOD, MD | GLOBAL NAPS | | 443-588 | PARKVILLE, MD | XO COMMUNICATIONS | | 443-589 | COCKEYSVILLE, MD | US LEC | | 443-590 | REISTERSTOWN, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-591 | GLEN BURNIE, MD | VERIZON WIRELESS | | 443-592 | ELKRIDGE, MD | GLOBAL NAPS | | 443-593 | ELKTON, MD | GLOBAL NAPS | | 443-594 | SPARROWS POINT, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-595 | SPARKS-GLENCOE, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-596 | ESSEX, MD | GLOBAL NAPS | | 443-597 | SEVERNA PARK, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-598 | SHERWOOD FOREST, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-599 | SEVERN, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-600 | ESSEX, MD | T-MOBILE | | 443-601 | FALLSTON, MD | GLOBAL NAPS | | 443-602 | BALTIMORE, MD | VERIZON WIRELESS | | 443-603 | ANNAPOLIS, MD | PAETEC COMMUNICATIONS | | 443-604 | BALTIMORE, MD | VERIZON WIRELESS | | 443-605 | WESTMINSTER, MD | CAVALIER TELEPHONE | | 443-606 | FORK, MD | GLOBAL NAPS | | 443-607 | WEST RIVER, MD | CAVALIER TELEPHONE | | 443-608 | TOWSON, MD | CRICKET COMMUNICATIONS | | 443-609 | SYKESVILLE, MD | CAVALIER TELEPHONE | | 443-610 | BALTIMORE, MD | VERIZON WIRELESS | | 443-611 | TELCO REPAIR SERVICE, MD | MULTIPLE OCN LISTING | | 443-612 | CATONSVILLE, MD | VERIZON MARYLAND | | 443-613 | TOWSON, MD | CRICKET COMMUNICATIONS | | 443-614 | SALISBURY, MD | VERIZON WIRELESS | | 443-615 | BALTIMORE, MD | VERIZON WIRELESS | | 443-616 | BEL AIR, MD | CAVALIER TELEPHONE | | 443-617 | FALLSTON, MD | VERIZON WIRELESS | | 443-618 | GLEN BURNIE, MD | VERIZON WIRELESS | | 443-619 | BEL AIR, MD | VERIZON WIRELESS | | 443-620 | WATERLOO 238, MD | TCG | | 443-621 | BALTIMORE, MD | SPRINT PCS | | 443-622 | BALTIMORE, MD | SPRINT PCS | | 443-623 | GLEN BURNIE, MD | SPRINT NEXTEL | | 443-624 | PRINCE FREDERICK, MD | VERIZON WIRELESS | | 443-625 | FORK, MD | LEVEL 3 | | 443-626 | CHASE, MD | CAVALIER TELEPHONE | | 443-627 | BALTIMORE, MD | VERIZON MARYLAND | | 443-628 | GLEN BURNIE, MD | GLOBAL NAPS | | 443-629 | BALTIMORE, MD | SPRINT PCS | | 443-630 | BALTIMORE, MD | VERIZON WIRELESS | | 443-631 | CATONSVILLE, MD | AT&T MOBILITY | | 443-632 | TOWSON, MD | US LEC | | 443-635 | BALTIMORE, MD | CRICKET COMMUNICATIONS | | 443-636 | CATONSVILLE, MD | T-MOBILE | | 443-637 | ARMIGER-GIBSON ISLAND, MD | XO COMMUNICATIONS INC | | 443-638 | ELLICOTT CITY, MD | GLOBAL NAPS | | 443-639 | HAMPSTEAD, MD | GLOBAL NAPS | | 443-640 | BEL AIR, MD | US LEC | | 443-641 | PIKESVILLE, MD | LEVEL 3 | | 443-642 | BALTIMORE, MD | VERIZON WIRELESS | | 443-643 | BEL AIR, MD | VERIZON MARYLAND | | 443-644 | JARRETTSVILLE, MD | GLOBAL NAPS | | 443-645 | MILLERSVILLE, MD | GLOBAL NAPS | | 443-646 | NORTH BEACH, MD | GLOBAL NAPS | | 443-647 | NEW WINDSOR, MD | GLOBAL NAPS | | 443-648 | ESSEX, MD | TCG | | 443-649 | SPARROWS POINT, MD | US LEC | | 443-650 | REISTERSTOWN, MD | XO COMMUNICATIONS | | 443-652 | TOWSON, MD | VERIZON MARYLAND | | 443-653 | PARKVILLE, MD | T-MOBILE | | 443-654 | WATERLOO 236, MD | VERIZON MARYLAND | | 443-655 | BEL AIR, MD | AT&T MOBILITY | | 443-656 | COLUMBIA, MD | CAVALIER TELEPHONE | | 443-657 | RANDALLSTOWN, MD | TW TELECOM | | 443-658 | WOODLAWN, MD | GLOBAL NAPS | | 443-659 | WEST RIVER, MD | GLOBAL NAPS | | 443-660 | PIKESVILLE, MD | COMCAST DIGITAL PHONE | | 443-661 | WATERLOO 238, MD | CAVALIER TELEPHONE | | 443-662 | SPARKS-GLENCOE, MD | CAVALIER TELEPHONE | | 443-663 | WOODLAWN, MD | VERIZON MARYLAND | | 443-664 | OCEAN CITY, MD | CAVALIER TELEPHONE | | 443-665 | NANTICOKE, MD | CAVALIER TELEPHONE | | 443-668 | CATONSVILLE, MD | AT&T MOBILITY | | 443-669 | DELMAR, MD | CAVALIER TELEPHONE | | 443-670 | CATONSVILLE, MD | CAVALIER TELEPHONE | | 443-671 | NEW WINDSOR, MD | TCG | | 443-672 | PARKTON, MD | TCG | | 443-673 | BROOKLYN PARK-LINTHICUM, MD | CAVALIER TELEPHONE | | 443-674 | NORTH EAST, MD | TCG | | 443-675 | RANDALLSTOWN, MD | CAVALIER TELEPHONE | | 443-676 | BALTIMORE, MD | AT&T MOBILITY | | 443-677 | BALTIMORE, MD | SPRINT NEXTEL | | 443-678 | PARKVILLE, MD | VERIZON MARYLAND | | 443-679 | SEVERN, MD | TCG | | 443-681 | BALTIMORE, MD | VERIZON WIRELESS | | 443-682 | BALTIMORE, MD | VERIZON WIRELESS | | 443-683 | BALTIMORE, MD | VERIZON WIRELESS | | 443-684 | PRINCE FREDERICK, MD | VERIZON WIRELESS | | 443-685 | SEVERN, MD | CAVALIER TELEPHONE | | 443-686 | FALLSTON, MD | SPRINT NEXTEL | | 443-687 | BALTIMORE, MD | VERIZON WIRELESS | | 443-688 | SEVERN, MD | CAVALIER TELEPHONE | | 443-689 | COCKEYSVILLE, MD | CAVALIER TELEPHONE | | 443-690 | BALTIMORE, MD | VERIZON WIRELESS | | 443-691 | BALTIMORE, MD | AT&T MOBILITY | | 443-692 | BALTIMORE, MD | XO COMMUNICATIONS | | 443-693 | PERRYVILLE, MD | TCG | | 443-694 | SEVERNA PARK, MD | SPRINT PCS | | 443-695 | BALTIMORE, MD | VERIZON WIRELESS | | 443-696 | DUNDALK, MD | CAVALIER TELEPHONE | | 443-697 | CATONSVILLE, MD | GLOBAL NAPS | | 443-698 | ODENTON, MD | TCG | | 443-699 | CHESTERTOWN, MD | VERIZON WIRELESS | | 443-700 | INTRALATA PIC VALIDATION, MD | MULTIPLE OCN LISTING | | 443-701 | ARBUTUS, MD | XO COMMUNICATIONS INC | | 443-702 | ARMIGER-GIBSON ISLAND, MD | CAVALIER TELEPHONE | | 443-703 | BALTIMORE, MD | XO COMMUNICATIONS INC | | 443-704 | ODENTON, MD | CAVALIER TELEPHONE | | 443-705 | COCKEYSVILLE, MD | GLOBAL NAPS | | 443-706 | CRISFIELD, MD | CAVALIER TELEPHONE | | 443-707 | BALTIMORE, MD | GLOBAL NAPS | | 443-708 | BALTIMORE, MD | TW TELECOM | | 443-709 | ARBUTUS, MD | CAVALIER TELEPHONE | | 443-710 | CATONSVILLE, MD | XO COMMUNICATIONS INC | | 443-711 | TELECOMMUNICATIONS RELAY SERVICE, MD | MULTIPLE OCN LISTING | | 443-712 | REISTERSTOWN, MD | CAVALIER TELEPHONE | | 443-715 | NORTH EAST, MD | CAVALIER TELEPHONE | | 443-716 | ANNAPOLIS, MD | CAVALIER TELEPHONE | | 443-717 | BALTIMORE, MD | VERIZON WIRELESS | | 443-718 | COLUMBIA, MD | US LEC | | 443-719 | JARRETTSVILLE, MD | CAVALIER TELEPHONE | | 443-721 | BALTIMORE, MD | VERIZON WIRELESS | | 443-722 | BALTIMORE, MD | T-MOBILE | | 443-724 | EASTON, MD | CAVALIER TELEPHONE | | 443-725 | PARKVILLE, MD | PAETEC COMMUNICATIONS | | 443-727 | BISHOPVILLE, MD | CAVALIER TELEPHONE | | 443-728 | BERLIN, MD | CAVALIER TELEPHONE | | 443-729 | WOODLAWN, MD | PAETEC COMMUNICATIONS | | 443-730 | ESSEX, MD | PAETEC COMMUNICATIONS | | 443-731 | PORT DEPOSIT, MD | TCG | | 443-732 | SILVER RUN, MD | TCG | | 443-733 | WATERLOO 238, MD | AT&T LOCAL | | 443-734 | SEVERN, MD | VERIZON MARYLAND | | 443-735 | SALISBURY, MD | AT&T MOBILITY | | 443-736 | SALISBURY, MD | AT&T MOBILITY | | 443-737 | WATERLOO 238, MD | PAETEC COMMUNICATIONS | | 443-738 | PIKESVILLE, MD | PAETEC COMMUNICATIONS | | 443-739 | BALTIMORE, MD | T-MOBILE | | 443-740 | BALTIMORE, MD | LEVEL 3 | | 443-742 | BALTIMORE, MD | AT&T MOBILITY | | 443-743 | BALTIMORE, MD | VERIZON WIRELESS | | 443-744 | REISTERSTOWN, MD | SPRINT NEXTEL | | 443-745 | COLUMBIA, MD | VERIZON WIRELESS | | 443-746 | EASTON, MD | LEVEL 3 | | 443-747 | PORT DEPOSIT, MD | CORETEL - MD | | 443-748 | MILLERSVILLE, MD | CAVALIER TELEPHONE | | 443-749 | GLEN BURNIE, MD | CAVALIER TELEPHONE | | 443-750 | BALTIMORE, MD | VERIZON WIRELESS | | 443-751 | WOODLAWN, MD | CAVALIER TELEPHONE | | 443-752 | BEL AIR, MD | GLOBAL NAPS | | 443-753 | WATERLOO 236, MD | XO COMMUNICATIONS | | 443-754 | SALISBURY, MD | VERIZON WIRELESS | | 443-755 | WATERLOO 238, MD | VERIZON MARYLAND | | 443-756 | BALTIMORE, MD | AT&T MOBILITY | | 443-757 | ELKRIDGE, MD | CAVALIER TELEPHONE | | 443-758 | ANNAPOLIS, MD | AT&T LOCAL | | 443-759 | BALTIMORE, MD | VERIZON WIRELESS | | 443-760 | ABERDEEN, MD | AT&T LOCAL | | 443-761 | TOWSON, MD | T-MOBILE | | 443-762 | BALTIMORE, MD | SPRINT PCS | | 443-763 | GLEN BURNIE, MD | T-MOBILE | | 443-764 | GLEN BURNIE, MD | T-MOBILE | | 443-765 | CATONSVILLE, MD | AT&T MOBILITY | | 443-766 | COLUMBIA, MD | US LEC | | 443-767 | WORTHINGTON, MD | CAVALIER TELEPHONE | | 443-768 | BALTIMORE, MD | SPRINT PCS | | 443-769 | BALTIMORE, MD | T-MOBILE | | 443-770 | ARMIGER-GIBSON ISLAND, MD | VERIZON MARYLAND | | 443-772 | ESSEX, MD | CAVALIER TELEPHONE | | 443-773 | BROOKLYN PARK-LINTHICUM, MD | XO COMMUNICATIONS | | 443-774 | BALTIMORE, MD | GLOBAL NAPS | | 443-775 | BALTIMORE, MD | GLOBAL NAPS | | 443-776 | BALTIMORE, MD | GLOBAL NAPS | | 443-777 | ESSEX, MD | VERIZON MARYLAND | | 443-778 | WATERLOO 236, MD | VERIZON MARYLAND | | 443-779 | ABERDEEN, MD | GLOBAL NAPS | | 443-780 | WOODLAWN, MD | US LEC | | 443-781 | ARMIGER-GIBSON ISLAND, MD | GLOBAL NAPS | | 443-782 | ANNAPOLIS, MD | GLOBAL NAPS | | 443-783 | SALISBURY, MD | VERIZON WIRELESS | | 443-784 | ARMIGER-GIBSON ISLAND, MD | TCG | | 443-785 | ARBUTUS, MD | GLOBAL NAPS | | 443-786 | EASTON, MD | VERIZON WIRELESS | | 443-787 | BEL AIR, MD | GLOBAL NAPS | | 443-788 | ABERDEEN, MD | GLOBAL NAPS | | 443-789 | WESTMINSTER, MD | AT&T MOBILITY | | 443-790 | GLEN BURNIE, MD | SPRINT NEXTEL | | 443-791 | TOWSON, MD | AT&T MOBILITY | | 443-792 | BROOKLYN PARK-LINTHICUM, MD | VERIZON MARYLAND | | 443-793 | PARKVILLE, MD | XO COMMUNICATIONS INC | | 443-794 | BALTIMORE, MD | AT&T MOBILITY | | 443-795 | SEVERN, MD | XO COMMUNICATIONS INC | | 443-796 | PIKESVILLE, MD | XO COMMUNICATIONS INC | | 443-797 | TOWSON, MD | XO COMMUNICATIONS INC | | 443-798 | TOWSON, MD | TW TELECOM | | 443-799 | BALTIMORE, MD | AT&T MOBILITY | | 443-801 | BALTIMORE, MD | SPRINT PCS | | 443-802 | BALTIMORE, MD | SPRINT PCS | | 443-803 | BALTIMORE, MD | SPRINT PCS | | 443-804 | BALTIMORE, MD | SPRINT PCS | | 443-805 | GLEN BURNIE, MD | T-MOBILE | | 443-806 | BALTIMORE, MD | SPRINT NEXTEL | | 443-807 | FALLSTON, MD | SPRINT NEXTEL | | 443-808 | BALTIMORE, MD | GLOBAL NAPS | | 443-809 | BALTIMORE, MD | GLOBAL NAPS | | 443-810 | BALTIMORE, MD | SPRINT PCS | | 443-811 | ONE CALL SERVICES-PIPELINE AND UTILITY SAFETY, MD | MULTIPLE OCN LISTING | | 443-812 | COLUMBIA, MD | VERIZON WIRELESS | | 443-813 | BALTIMORE, MD | VERIZON WIRELESS | | 443-814 | BALTIMORE, MD | VERIZON WIRELESS | | 443-815 | ESSEX, MD | XO COMMUNICATIONS INC | | 443-816 | SEVERNA PARK, MD | XO COMMUNICATIONS | | 443-817 | ARMIGER-GIBSON ISLAND, MD | XO COMMUNICATIONS | | 443-818 | ARMIGER-GIBSON ISLAND, MD | LEVEL 3 | | 443-819 | BALTIMORE, MD | GLOBAL NAPS | | 443-820 | ELKRIDGE, MD | PAETEC COMMUNICATIONS | | 443-821 | WESTMINSTER, MD | SPRINT PCS | | 443-822 | ANNAPOLIS, MD | SPRINT PCS | | 443-823 | TOWSON, MD | VERIZON WIRELESS | | 443-824 | TOWSON, MD | T-MOBILE | | 443-825 | BALTIMORE, MD | T-MOBILE | | 443-826 | BALTIMORE, MD | VERIZON WIRELESS | | 443-827 | BALTIMORE, MD | VERIZON WIRELESS | | 443-828 | ELLICOTT CITY, MD | CAVALIER TELEPHONE | | 443-829 | BALTIMORE, MD | SPRINT NEXTEL | | 443-830 | CATONSVILLE, MD | CAVALIER TELEPHONE | | 443-831 | BALTIMORE, MD | AT&T MOBILITY | | 443-832 | COLUMBIA, MD | LEVEL 3 | | 443-833 | ARBUTUS, MD | US LEC | | 443-834 | TOWSON, MD | CAVALIER TELEPHONE | | 443-835 | BALTIMORE, MD | VERIZON WIRELESS | | 443-836 | BALTIMORE, MD | GLOBAL NAPS | | 443-837 | ANNAPOLIS, MD | US LEC | | 443-838 | BALTIMORE, MD | AT&T MOBILITY | | 443-839 | BALTIMORE, MD | T-MOBILE | | 443-840 | CATONSVILLE, MD | AT&T MOBILITY | | 443-841 | TOWSON, MD | VERIZON MARYLAND | | 443-843 | HAVRE DE GRACE, MD | VERIZON MARYLAND | | 443-844 | BALTIMORE, MD | VERIZON WIRELESS | | 443-845 | BALTIMORE, MD | VERIZON WIRELESS | | 443-846 | TOWSON, MD | AT&T MOBILITY | | 443-847 | TOWSON, MD | VERIZON WIRELESS | | 443-848 | GLEN BURNIE, MD | SPRINT NEXTEL | | 443-849 | TOWSON, MD | VERIZON MARYLAND | | 443-850 | BALTIMORE, MD | T-MOBILE | | 443-851 | CATONSVILLE, MD | T-MOBILE | | 443-852 | ANNAPOLIS, MD | AT&T MOBILITY | | 443-853 | BALTIMORE, MD | VERIZON WIRELESS | | 443-854 | BALTIMORE, MD | T-MOBILE | | 443-855 | ABERDEEN, MD | BROADVIEW NETWORKS | | 443-856 | OCEAN CITY, MD | CORETEL - MD | | 443-857 | BALTIMORE, MD | T-MOBILE | | 443-858 | BALTIMORE, MD | T-MOBILE | | 443-859 | SALISBURY, MD | T-MOBILE | | 443-860 | CATONSVILLE, MD | AT&T MOBILITY | | 443-861 | ABERDEEN, MD | VERIZON MARYLAND | | 443-864 | COLUMBIA, MD | SPRINT NEXTEL | | 443-865 | BALTIMORE, MD | SPRINT NEXTEL | | 443-866 | BEL AIR, MD | SPRINT PCS | | 443-867 | GLEN BURNIE, MD | PAETEC COMMUNICATIONS | | 443-868 | ESSEX, MD | VERIZON MARYLAND | | 443-869 | BALTIMORE, MD | VERIZON WIRELESS | | 443-870 | PIKESVILLE, MD | TW TELECOM | | 443-871 | ANNAPOLIS, MD | SPRINT NEXTEL | | 443-872 | BALTIMORE, MD | CAVALIER TELEPHONE | | 443-873 | BALTIMORE, MD | INFOTELECOM | | 443-874 | BALTIMORE, MD | CAVALIER TELEPHONE | | 443-875 | ANNAPOLIS, MD | AT&T MOBILITY | | 443-876 | BEL AIR, MD | SPRINT PCS | | 443-877 | NORTH EAST, MD | LEVEL 3 | | 443-878 | COLUMBIA, MD | VERIZON WIRELESS | | 443-879 | DUNDALK, MD | VERIZON MARYLAND | | 443-880 | SALISBURY, MD | AT&T LOCAL | | 443-881 | REISTERSTOWN, MD | SPRINT NEXTEL | | 443-883 | GLEN BURNIE, MD | AT&T LOCAL | | 443-884 | BALTIMORE, MD | CAVALIER TELEPHONE | | 443-885 | BALTIMORE, MD | VERIZON MARYLAND | | 443-886 | COCKEYSVILLE, MD | AT&T LOCAL | | 443-887 | CATONSVILLE, MD | CAVALIER TELEPHONE | | 443-889 | GLEN BURNIE, MD | T-MOBILE | | 443-891 | GLEN BURNIE, MD | XO COMMUNICATIONS INC | | 443-893 | WOODLAWN, MD | XO COMMUNICATIONS INC | | 443-895 | TOWSON, MD | VERIZON WIRELESS | | 443-896 | COLUMBIA, MD | AT&T LOCAL | | 443-898 | PIKESVILLE, MD | LEVEL 3 | | 443-899 | WATERLOO 238, MD | LEVEL 3 | | 443-901 | TOWSON, MD | CAVALIER TELEPHONE | | 443-904 | BALTIMORE, MD | VERIZON WIRELESS | | 443-907 | ELKTON, MD | VERIZON WIRELESS | | 443-909 | BALTIMORE, MD | VERIZON WIRELESS | | 443-910 | BEL AIR, MD | AT&T MOBILITY | | 443-911 | EMERGENCY SERVICES, MD | MULTIPLE OCN LISTING | | 443-912 | TOWSON, MD | CORETEL - MD | | 443-914 | WORTHINGTON, MD | TCG | | 443-918 | TANEYTOWN, MD | TCG | | 443-919 | BALTIMORE, MD | CAVALIER TELEPHONE | | 443-920 | SYKESVILLE, MD | TCG | | 443-921 | TOWSON, MD | PAETEC COMMUNICATIONS | | 443-922 | EDGEWOOD, MD | ATX TELECOMMUNICATIONS SERVICES | | 443-923 | BALTIMORE, MD | CAVALIER TELEPHONE | | 443-924 | ANNAPOLIS, MD | VERIZON WIRELESS | | 443-925 | BALTIMORE, MD | T-MOBILE | | 443-926 | ANNAPOLIS, MD | LEVEL 3 | | 443-927 | BALTIMORE, MD | LEVEL 3 | | 443-928 | BALTIMORE, MD | VERIZON WIRELESS | | 443-929 | PIKESVILLE, MD | T-MOBILE | | 443-933 | COCKEYSVILLE, MD | TCG | | 443-934 | BALTIMORE, MD | VERIZON WIRELESS | | 443-935 | TOWSON, MD | AT&T MOBILITY | | 443-936 | BALTIMORE, MD | VERIZON MARYLAND | | 443-937 | UNION BRIDGE, MD | TCG | | 443-938 | BALTIMORE, MD | VERIZON WIRELESS | | 443-939 | BALTIMORE, MD | T-MOBILE | | 443-940 | PIKESVILLE, MD | CAVALIER TELEPHONE | | 443-942 | SEVERNA PARK, MD | TCG | | 443-943 | SPARROWS POINT, MD | TCG | | 443-944 | SALISBURY, MD | COMCAST DIGITAL PHONE | | 443-945 | ELKTON, MD | AT&T MOBILITY | | 443-946 | PARKVILLE, MD | GLOBAL NAPS | | 443-947 | PERRYVILLE, MD | GLOBAL NAPS | | 443-949 | ANNAPOLIS, MD | COMCAST DIGITAL PHONE | | 443-951 | ANNAPOLIS, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 443-954 | BALTIMORE, MD | PAETEC COMMUNICATIONS | | 443-955 | BALTIMORE, MD | VERIZON WIRELESS | | 443-956 | BALTIMORE, MD | AT&T MOBILITY | | 443-957 | BALTIMORE, MD | AT&T LOCAL | | 443-958 | STANDARD PLANT TEST CODE, MD | MULTIPLE OCN LISTING | | 443-959 | STANDARD PLANT TEST CODE, MD | MULTIPLE OCN LISTING | | 443-962 | GLEN BURNIE, MD | VERIZON WIRELESS | | 443-964 | NORTH BEACH, MD | LEVEL 3 | | 443-965 | BALTIMORE, MD | SPRINT NEXTEL | | 443-966 | FALLSTON, MD | VERIZON WIRELESS | | 443-967 | NORTH EAST, MD | VERIZON MARYLAND | | 443-968 | PRINCE FREDERICK, MD | AT&T MOBILITY | | 443-969 | ESSEX, MD | CAVALIER TELEPHONE | | 443-973 | ELLICOTT CITY, MD | XO COMMUNICATIONS INC | | 443-974 | WESTMINSTER, MD | TCG | | 443-975 | PRINCE FREDERICK, MD | AT&T MOBILITY | | 443-976 | CROFTON, MD | BALTIMORE-WASHINGTON TELEPHONE COMPANY | | 443-977 | BALTIMORE, MD | VERIZON WIRELESS | | 443-980 | CATONSVILLE, MD | AT&T MOBILITY | | 443-982 | BALTIMORE, MD | YMAX COMMUNICATIONS | | 443-983 | BALTIMORE, MD | T-MOBILE | | 443-984 | BALTIMORE, MD | VERIZON MARYLAND | | 443-985 | RANDALLSTOWN, MD | T-MOBILE | | 443-986 | BALTIMORE, MD | VERIZON WIRELESS | | 443-987 | BEL AIR, MD | AT&T LOCAL | | 443-988 | CENTREVILLE, MD | LEVEL 3 | | 443-989 | GLEN BURNIE, MD | CAVALIER TELEPHONE | | 443-992 | BALTIMORE, MD | LEVEL 3 | | 443-994 | ANNAPOLIS, MD | AT&T MOBILITY | | 443-995 | ANNAPOLIS, MD | AT&T MOBILITY | | 443-996 | CATONSVILLE, MD | AT&T MOBILITY | | 443-997 | BALTIMORE, MD | VERIZON MARYLAND | | 443-998 | PARKVILLE, MD | VERIZON MARYLAND | | 443-999 | STANDARD PLANT TEST CODE, MD | VERIZON MARYLAND |
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