| NPA NXX | Location | Company | | 240-201 | RIDGE, MD | GLOBAL NAPS | | 240-205 | WASHINGTON ZONE 10, MD | AT&T MOBILITY | | 240-206 | WASHINGTON ZONE 14, MD | XO COMMUNICATIONS INC | | 240-207 | DAMASCUS 236, MD | CAVALIER TELEPHONE | | 240-208 | LA PLATA, MD | GLOBAL NAPS | | 240-209 | INDIAN HEAD, MD | GLOBAL NAPS | | 240-210 | WALDORF, MD | AT&T MOBILITY | | 240-211 | COMMUNITY SUPPORT AND REFERRAL SERVICES, MD | MULTIPLE OCN LISTING | | 240-212 | OAKLAND, MD | CORETEL - MD | | 240-213 | WALDORF, MD | GLOBAL NAPS | | 240-214 | MECHANICSVILLE, MD | GLOBAL NAPS | | 240-215 | FREDERICK, MD | LEVEL 3 | | 240-216 | WALDORF, MD | SPRINT NEXTEL | | 240-217 | HAGERSTOWN, MD | T-MOBILE | | 240-218 | NANJEMOY, MD | GLOBAL NAPS | | 240-219 | TOMPKINSVILLE, MD | GLOBAL NAPS | | 240-220 | POOLESVILLE, MD | GLOBAL NAPS | | 240-221 | WASHINGTON ZONE 11, MD | VERIZON MARYLAND | | 240-222 | WALDORF, MD | CAVALIER TELEPHONE | | 240-223 | WASHINGTON ZONE 2, MD | XO COMMUNICATIONS | | 240-225 | FREDERICK, MD | CORETEL - MD | | 240-228 | WASHINGTON ZONE 13, MD | VERIZON MARYLAND | | 240-229 | WALDORF, MD | LEVEL 3 | | 240-230 | HUGHESVILLE, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 240-231 | HAGERSTOWN, MD | CORETEL - MD | | 240-232 | WASHINGTON ZONE 14, MD | LEVEL 3 | | 240-233 | TOMPKINSVILLE, MD | TELEPORT COMMUNICATIONS GROUP | | 240-235 | WASHINGTON ZONE 2, MD | PAETEC COMMUNICATIONS | | 240-236 | FREDERICK, MD | VERIZON MARYLAND | | 240-237 | LEXINGTON PARK-GREAT MILLS, MD | TELEPORT COMMUNICATIONS GROUP | | 240-238 | WASHINGTON ZONE 10, MD | PAETEC COMMUNICATIONS | | 240-239 | LEONARDTOWN, MD | CORETEL - MD | | 240-241 | WASHINGTON ZONE 13, MD | STARPOWER COMMUNICATIONS LLC | | 240-242 | WASHINGTON ZONE 11, MD | STARPOWER COMMUNICATIONS LLC | | 240-243 | GAITHERSBURG, MD | XO COMMUNICATIONS | | 240-244 | WASHINGTON ZONE 16, MD | STARPOWER COMMUNICATIONS LLC | | 240-245 | WASHINGTON ZONE 14, MD | STARPOWER COMMUNICATIONS LLC | | 240-246 | GAITHERSBURG, MD | STARPOWER COMMUNICATIONS LLC | | 240-247 | WASHINGTON ZONE 3, MD | XO COMMUNICATIONS | | 240-248 | RIDGE, MD | GLOBAL NAPS | | 240-249 | MECHANICSVILLE, MD | TELEPORT COMMUNICATIONS GROUP | | 240-250 | BRANDYWINE, MD | GLOBAL NAPS | | 240-251 | HIGHFIELD, MD | CORETEL - MD | | 240-252 | GAITHERSBURG, MD | LEVEL 3 | | 240-253 | WASHINGTON ZONE 6, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 240-254 | HUGHESVILLE, MD | TELEPORT COMMUNICATIONS GROUP | | 240-255 | POOLESVILLE, MD | GLOBAL NAPS | | 240-256 | LEONARDTOWN, MD | TELEPORT COMMUNICATIONS GROUP | | 240-257 | NANJEMOY, MD | TELEPORT COMMUNICATIONS GROUP | | 240-258 | RIDGE, MD | TELEPORT COMMUNICATIONS GROUP | | 240-260 | WASHINGTON ZONE 14, MD | XO COMMUNICATIONS | | 240-261 | WASHINGTON ZONE 10, MD | GLOBAL NAPS | | 240-264 | LAUREL 236, MD | VERIZON MARYLAND | | 240-266 | WASHINGTON ZONE 14, MD | GLOBAL NAPS | | 240-268 | WASHINGTON ZONE 10, MD | XO COMMUNICATIONS | | 240-269 | WASHINGTON ZONE 16, MD | GLOBAL NAPS | | 240-271 | WASHINGTON ZONE 2, MD | AT&T MOBILITY | | 240-273 | WASHINGTON ZONE 6, MD | LEVEL 3 | | 240-274 | WASHINGTON ZONE 2, MD | AT&T MOBILITY | | 240-275 | GRANTSVILLE, MD | CORETEL - MD | | 240-276 | WASHINGTON ZONE 10, MD | VERIZON MARYLAND | | 240-277 | WASHINGTON ZONE 2, MD | SPRINT PCS | | 240-279 | WALDORF, MD | CORETEL - MD | | 240-280 | LAUREL 236, MD | COMCAST DIGITAL PHONE | | 240-281 | WASHINGTON ZONE 2, MD | AT&T MOBILITY | | 240-282 | MECHANICSVILLE, MD | GLOBAL NAPS | | 240-283 | WASHINGTON ZONE 11, MD | PAETEC COMMUNICATIONS | | 240-284 | FROSTBURG, MD | NATIONSLINE | | 240-285 | FREDERICK, MD | VERIZON WIRELESS | | 240-286 | WASHINGTON ZONE 2, MD | SPRINT NEXTEL | | 240-287 | HANCOCK, MD | CORETEL - MD | | 240-288 | THURMONT, MD | NATIONSLINE | | 240-289 | WASHINGTON ZONE 6, MD | CAVALIER TELEPHONE | | 240-290 | WASHINGTON ZONE 11, MD | XO COMMUNICATIONS | | 240-291 | HAGERSTOWN, MD | AT&T MOBILITY | | 240-292 | WASHINGTON ZONE 11, MD | VERIZON MARYLAND | | 240-293 | WASHINGTON ZONE 12, MD | STARPOWER COMMUNICATIONS LLC | | 240-294 | LAUREL 236, MD | XO COMMUNICATIONS INC | | 240-295 | LAUREL 236, MD | CAVALIER TELEPHONE | | 240-296 | WASHINGTON ZONE 4, MD | CAVALIER TELEPHONE | | 240-297 | WASHINGTON ZONE 13, MD | LEVEL 3 | | 240-298 | LEONARDTOWN, MD | VERIZON WIRELESS | | 240-299 | WALDORF, MD | SPRINT NEXTEL | | 240-303 | WASHINGTON ZONE 16, MD | CAVALIER TELEPHONE | | 240-304 | WASHINGTON ZONE 5, MD | SPRINT NEXTEL | | 240-305 | WASHINGTON ZONE 3, MD | SPRINT PCS | | 240-306 | GAITHERSBURG, MD | XO COMMUNICATIONS | | 240-307 | EMMITSBURG, MD | AT&T LOCAL | | 240-308 | DAMASCUS 236, MD | AT&T MOBILITY | | 240-310 | HAGERSTOWN, MD | U.S. CELLULAR | | 240-311 | NON EMERGENCY POLICE AND OTHER GOVERNMENTAL SERVICES, MD | MULTIPLE OCN LISTING | | 240-312 | WASHINGTON ZONE 5, MD | CAVALIER TELEPHONE | | 240-313 | HAGERSTOWN, MD | VERIZON MARYLAND | | 240-314 | WASHINGTON ZONE 10, MD | VERIZON MARYLAND | | 240-315 | FREDERICK, MD | VERIZON MARYLAND | | 240-316 | WASHINGTON ZONE 2, MD | SPRINT PCS | | 240-317 | LEXINGTON PARK-GREAT MILLS, MD | STARPOWER COMMUNICATIONS LLC | | 240-318 | WASHINGTON ZONE 16, MD | VERIZON MARYLAND | | 240-319 | LAUREL 238, MD | VERIZON WIRELESS | | 240-320 | WALDORF, MD | CAVALIER TELEPHONE | | 240-321 | OAKLAND, MD | U.S. CELLULAR | | 240-322 | MCCOOLE, MD | CORETEL - MD | | 240-323 | EMMITSBURG, MD | CORETEL - MD | | 240-324 | ASHTON 238, MD | YMAX COMMUNICATIONS | | 240-325 | DAMASCUS 236, MD | CORETEL - MD | | 240-326 | WASHINGTON ZONE 15, MD | CAVALIER TELEPHONE | | 240-327 | GAITHERSBURG, MD | CORETEL - MD | | 240-328 | WASHINGTON ZONE 10, MD | VERIZON MARYLAND | | 240-329 | HAGERSTOWN, MD | LEVEL 3 | | 240-330 | WASHINGTON ZONE 2, MD | SPRINT PCS | | 240-331 | WASHINGTON ZONE 3, MD | GLOBAL NAPS | | 240-332 | TOMPKINSVILLE, MD | GLOBAL NAPS | | 240-333 | WASHINGTON ZONE 2, MD | CAVALIER TELEPHONE | | 240-334 | WASHINGTON ZONE 14, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 240-335 | WASHINGTON ZONE 14, MD | CAVALIER TELEPHONE | | 240-336 | WASHINGTON ZONE 2, MD | CORETEL - MD | | 240-337 | WASHINGTON ZONE 5, MD | GLOBAL NAPS | | 240-338 | WASHINGTON ZONE 3, MD | VERIZON WIRELESS | | 240-339 | WASHINGTON ZONE 15, MD | CAVALIER TELEPHONE | | 240-341 | BUCKEYSTOWN, MD | VERIZON BUSINESS | | 240-342 | ASHTON 236, MD | STARPOWER COMMUNICATIONS LLC | | 240-344 | FREDERICK, MD | AT&T MOBILITY | | 240-345 | ASHTON 238, MD | LEVEL 3 | | 240-346 | WALDORF, MD | SPRINT PCS | | 240-347 | HAGERSTOWN, MD | BANDWIDTH.COM | | 240-348 | WASHINGTON ZONE 16, MD | LEVEL 3 | | 240-349 | LA PLATA, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 240-350 | WASHINGTON ZONE 3, MD | SPRINT PCS | | 240-351 | WASHINGTON ZONE 3, MD | SPRINT PCS | | 240-352 | LA PLATA, MD | GLOBAL NAPS | | 240-353 | WASHINGTON ZONE 3, MD | SPRINT PCS | | 240-354 | WASHINGTON ZONE 3, MD | SPRINT PCS | | 240-355 | WASHINGTON ZONE 3, MD | SPRINT PCS | | 240-356 | MYERSVILLE, MD | LEVEL 3 | | 240-357 | FREDERICK, MD | VERIZON WIRELESS | | 240-358 | DAMASCUS 236, MD | GLOBAL NAPS | | 240-359 | INDIAN HEAD, MD | GLOBAL NAPS | | 240-361 | GAITHERSBURG, MD | CAVALIER TELEPHONE | | 240-362 | CUMBERLAND, MD | VERIZON MARYLAND | | 240-363 | WASHINGTON ZONE 11, MD | GLOBAL NAPS | | 240-364 | GAITHERSBURG, MD | CAVALIER TELEPHONE | | 240-365 | DAMASCUS 236, MD | BALTIMORE-WASHINGTON TELEPHONE COMPANY | | 240-366 | WILLIAMSPORT, MD | AT&T LOCAL | | 240-367 | FREDERICK, MD | SPRINT NEXTEL | | 240-368 | WALDORF, MD | GLOBAL NAPS | | 240-369 | MOUNT AIRY, MD | CORETEL - MD | | 240-370 | WASHINGTON ZONE 2, MD | SPRINT PCS | | 240-371 | WASHINGTON ZONE 12, MD | GLOBAL NAPS | | 240-372 | GAITHERSBURG, MD | SPRINT NEXTEL | | 240-373 | WASHINGTON ZONE 13, MD | VERIZON MARYLAND | | 240-374 | LAUREL 236, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 240-375 | WASHINGTON ZONE 5, MD | SPRINT NEXTEL | | 240-376 | HUGHESVILLE, MD | GLOBAL NAPS | | 240-377 | INDIAN HEAD, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 240-378 | CUMBERLAND, MD | CORETEL - MD | | 240-379 | FREDERICK, MD | VERIZON MARYLAND | | 240-380 | WASHINGTON ZONE 2, MD | VERIZON WIRELESS | | 240-381 | WASHINGTON ZONE 3, MD | AT&T MOBILITY | | 240-382 | HAGERSTOWN, MD | TCG | | 240-383 | WASHINGTON ZONE 2, MD | AT&T MOBILITY | | 240-384 | LEXINGTON PARK-GREAT MILLS, MD | GLOBAL NAPS | | 240-385 | MYERSVILLE, MD | VERIZON MARYLAND | | 240-386 | WASHINGTON ZONE 10, MD | VERIZON MARYLAND | | 240-387 | WASHINGTON ZONE 13, MD | CAVALIER TELEPHONE | | 240-388 | GAITHERSBURG, MD | SPRINT NEXTEL | | 240-389 | ASHTON 236, MD | ATX TELECOMMUNICATIONS SERVICES | | 240-390 | ASHTON 236, MD | CAVALIER TELEPHONE | | 240-391 | WASHINGTON ZONE 13, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 240-392 | WASHINGTON ZONE 5, MD | STARPOWER COMMUNICATIONS LLC | | 240-393 | WASHINGTON ZONE 3, MD | VERIZON WIRELESS | | 240-394 | MOUNT AIRY, MD | AT&T MOBILITY | | 240-395 | WASHINGTON ZONE 2, MD | CAVALIER TELEPHONE | | 240-396 | WASHINGTON ZONE 2, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 240-397 | FREDERICK, MD | VERIZON WIRELESS | | 240-398 | WASHINGTON ZONE 3, MD | SPRINT NEXTEL | | 240-399 | WASHINGTON ZONE 10, MD | XO COMMUNICATIONS INC | | 240-401 | WASHINGTON ZONE 10, MD | AT&T MOBILITY | | 240-403 | WASHINGTON ZONE 10, MD | CAVALIER TELEPHONE | | 240-404 | GAITHERSBURG, MD | XO COMMUNICATIONS INC | | 240-405 | FREDERICK, MD | US LEC | | 240-406 | WASHINGTON ZONE 10, MD | CRICKET COMMUNICATIONS | | 240-407 | WASHINGTON ZONE 16, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 240-408 | WASHINGTON ZONE 10, MD | CRICKET COMMUNICATIONS | | 240-409 | FREDERICK, MD | AT&T MOBILITY | | 240-411 | 411 LOCAL DIRECTORY ASSISTANCE, MD | MULTIPLE OCN LISTING | | 240-412 | WALDORF, MD | SPRINT PCS | | 240-413 | WASHINGTON ZONE 4, MD | T-MOBILE | | 240-414 | WASHINGTON ZONE 6, MD | GLOBAL NAPS | | 240-415 | FREDERICK, MD | YMAX COMMUNICATIONS | | 240-416 | WALDORF, MD | AT&T MOBILITY | | 240-417 | WASHINGTON ZONE 5, MD | SPRINT NEXTEL | | 240-418 | WASHINGTON ZONE 2, MD | SPRINT PCS | | 240-419 | WALDORF, MD | VERIZON WIRELESS | | 240-420 | HAGERSTOWN, MD | VERIZON MARYLAND | | 240-421 | WASHINGTON ZONE 10, MD | T-MOBILE | | 240-422 | FREDERICK, MD | T-MOBILE | | 240-423 | WASHINGTON ZONE 3, MD | T-MOBILE | | 240-424 | WASHINGTON ZONE 3, MD | SPRINT PCS | | 240-425 | WASHINGTON ZONE 2, MD | DSL.NET | | 240-426 | WASHINGTON ZONE 2, MD | SPRINT PCS | | 240-427 | WALDORF, MD | XO COMMUNICATIONS INC | | 240-428 | WASHINGTON ZONE 10, MD | CRICKET COMMUNICATIONS | | 240-429 | WASHINGTON ZONE 3, MD | VERIZON WIRELESS | | 240-430 | WASHINGTON ZONE 11, MD | CAVALIER TELEPHONE | | 240-431 | LEXINGTON PARK-GREAT MILLS, MD | SPRINT PCS | | 240-432 | WASHINGTON ZONE 3, MD | SPRINT PCS | | 240-433 | WASHINGTON ZONE 12, MD | CAVALIER TELEPHONE | | 240-434 | LEONARDTOWN, MD | LEVEL 3 | | 240-435 | WALDORF, MD | VERIZON WIRELESS | | 240-436 | BUCKEYSTOWN, MD | LEVEL 3 | | 240-437 | ASHTON 236, MD | XO COMMUNICATIONS INC | | 240-439 | FREDERICK, MD | VERIZON WIRELESS | | 240-440 | FREDERICK, MD | CRICKET COMMUNICATIONS | | 240-441 | WASHINGTON ZONE 6, MD | T-MOBILE | | 240-442 | OAKLAND, MD | VERIZON MARYLAND | | 240-446 | FREDERICK, MD | VERIZON WIRELESS | | 240-447 | WASHINGTON ZONE 10, MD | AT&T MOBILITY | | 240-449 | GAITHERSBURG, MD | AT&T MOBILITY | | 240-450 | WASHINGTON ZONE 3, MD | CAVALIER TELEPHONE | | 240-452 | HAGERSTOWN, MD | NTELOS NETWORK | | 240-453 | WASHINGTON ZONE 10, MD | VERIZON MARYLAND | | 240-454 | GAITHERSBURG, MD | PAETEC COMMUNICATIONS | | 240-455 | WASHINGTON ZONE 5, MD | PAETEC COMMUNICATIONS | | 240-456 | LAUREL 236, MD | VERIZON MARYLAND | | 240-457 | FREDERICK, MD | VERIZON WIRELESS | | 240-459 | LAUREL 236, MD | VERIZON WIRELESS | | 240-460 | WASHINGTON ZONE 3, MD | AT&T MOBILITY | | 240-461 | WASHINGTON ZONE 3, MD | AT&T MOBILITY | | 240-462 | WASHINGTON ZONE 3, MD | SPRINT PCS | | 240-463 | WASHINGTON ZONE 3, MD | AT&T MOBILITY | | 240-464 | WASHINGTON ZONE 2, MD | SPRINT NEXTEL | | 240-465 | WASHINGTON ZONE 2, MD | GLOBAL NAPS | | 240-466 | MECHANICSVILLE, MD | GLOBAL NAPS | | 240-468 | WASHINGTON ZONE 3, MD | SPRINT PCS | | 240-469 | HAGERSTOWN, MD | SPRINT PCS | | 240-471 | WASHINGTON ZONE 12, MD | GLOBAL CROSSING LOCAL SERVICES INC |
| | NPA NXX | Location | Company | | 240-472 | WASHINGTON ZONE 3, MD | AT&T MOBILITY | | 240-473 | WASHINGTON ZONE 13, MD | CAVALIER TELEPHONE | | 240-475 | WASHINGTON ZONE 3, MD | AT&T MOBILITY | | 240-476 | WASHINGTON ZONE 3, MD | T-MOBILE | | 240-477 | GAITHERSBURG, MD | BROADVIEW NETWORKS | | 240-478 | WASHINGTON ZONE 3, MD | AT&T MOBILITY | | 240-479 | WASHINGTON ZONE 2, MD | VERIZON WIRELESS | | 240-481 | WASHINGTON ZONE 3, MD | T-MOBILE | | 240-482 | WASHINGTON ZONE 2, MD | US LEC | | 240-483 | WASHINGTON ZONE 2, MD | COMCAST DIGITAL PHONE | | 240-485 | WASHINGTON ZONE 3, MD | US LEC | | 240-486 | WASHINGTON ZONE 14, MD | T-MOBILE | | 240-487 | WASHINGTON ZONE 4, MD | US LEC | | 240-489 | POOLESVILLE, MD | XO COMMUNICATIONS INC | | 240-490 | MIDDLETOWN, MD | T-MOBILE | | 240-491 | WASHINGTON ZONE 3, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 240-492 | WASHINGTON ZONE 5, MD | US LEC | | 240-493 | WASHINGTON ZONE 6, MD | US LEC | | 240-494 | WASHINGTON ZONE 3, MD | CAVALIER TELEPHONE | | 240-497 | WASHINGTON ZONE 2, MD | VERIZON MARYLAND | | 240-498 | WASHINGTON ZONE 2, MD | SPRINT PCS | | 240-499 | WASHINGTON ZONE 10, MD | US LEC | | 240-501 | WASHINGTON ZONE 3, MD | SPRINT PCS | | 240-505 | WASHINGTON ZONE 3, MD | T-MOBILE | | 240-506 | WASHINGTON ZONE 10, MD | AT&T MOBILITY | | 240-507 | WASHINGTON ZONE 2, MD | VERIZON WIRELESS | | 240-508 | WASHINGTON ZONE 5, MD | SPRINT NEXTEL | | 240-509 | WASHINGTON ZONE 14, MD | BANDWIDTH.COM | | 240-510 | WASHINGTON ZONE 15, MD | XO COMMUNICATIONS INC | | 240-511 | TRAVEL INFORMATION SERVICES, MD | MULTIPLE OCN LISTING | | 240-512 | WASHINGTON ZONE 13, MD | CORETEL - MD | | 240-514 | WASHINGTON ZONE 11, MD | US LEC | | 240-515 | WASHINGTON ZONE 2, MD | AT&T MOBILITY | | 240-516 | WASHINGTON ZONE 12, MD | US LEC | | 240-520 | HAGERSTOWN, MD | SPRINT PCS | | 240-522 | CUMBERLAND, MD | SPRINT PCS | | 240-523 | LA PLATA, MD | XO COMMUNICATIONS INC | | 240-524 | LAUREL 236, MD | GLOBAL NAPS | | 240-525 | WASHINGTON ZONE 15, MD | GLOBAL NAPS | | 240-526 | LEONARDTOWN, MD | GLOBAL NAPS | | 240-527 | HAGERSTOWN, MD | VERIZON MARYLAND | | 240-528 | HUGHESVILLE, MD | LEVEL 3 | | 240-529 | FREDERICK, MD | VERIZON MARYLAND | | 240-533 | WASHINGTON ZONE 3, MD | TELEPORT COMMUNICATIONS GROUP | | 240-535 | WASHINGTON ZONE 3, MD | AT&T MOBILITY | | 240-536 | ASHTON 236, MD | GLOBAL NAPS | | 240-538 | LEONARDTOWN, MD | XO COMMUNICATIONS INC | | 240-539 | WASHINGTON ZONE 4, MD | GLOBAL NAPS | | 240-542 | WASHINGTON ZONE 13, MD | US LEC | | 240-543 | WASHINGTON ZONE 2, MD | SPRINT PCS | | 240-544 | WASHINGTON ZONE 14, MD | US LEC | | 240-545 | WASHINGTON ZONE 15, MD | US LEC | | 240-546 | WASHINGTON ZONE 16, MD | US LEC | | 240-547 | LAUREL 236, MD | LEVEL 3 | | 240-548 | WASHINGTON ZONE 14, MD | XO COMMUNICATIONS | | 240-550 | WASHINGTON ZONE 10, MD | CRICKET COMMUNICATIONS | | 240-551 | WASHINGTON ZONE 10, MD | CRICKET COMMUNICATIONS | | 240-552 | WASHINGTON ZONE 10, MD | CRICKET COMMUNICATIONS | | 240-553 | WASHINGTON ZONE 13, MD | XO COMMUNICATIONS | | 240-554 | LAUREL 236, MD | XO COMMUNICATIONS | | 240-555 | DIRECTORY ASSISTANCE, MD | MULTIPLE OCN LISTING | | 240-556 | WASHINGTON ZONE 14, MD | PAETEC COMMUNICATIONS | | 240-558 | WASHINGTON ZONE 11, MD | CAVALIER TELEPHONE | | 240-559 | ASHTON 236, MD | XO COMMUNICATIONS | | 240-560 | WASHINGTON ZONE 12, MD | XO COMMUNICATIONS INC | | 240-561 | LEONARDTOWN, MD | VERIZON WIRELESS | | 240-565 | LAUREL 238, MD | T-MOBILE | | 240-566 | FREDERICK, MD | VERIZON MARYLAND | | 240-567 | WASHINGTON ZONE 10, MD | VERIZON MARYLAND | | 240-568 | LAUREL 236, MD | VERIZON MARYLAND | | 240-573 | WASHINGTON ZONE 15, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 240-575 | FREDERICK, MD | LEVEL 3 | | 240-577 | LEONARDTOWN, MD | VERIZON WIRELESS | | 240-580 | CUMBERLAND, MD | SPRINT NEXTEL | | 240-581 | LAUREL 236, MD | PAETEC COMMUNICATIONS | | 240-582 | WASHINGTON ZONE 4, MD | VERIZON MARYLAND | | 240-583 | LAUREL 236, MD | VERIZON MARYLAND | | 240-586 | FREDERICK, MD | VERIZON MARYLAND | | 240-587 | LEONARDTOWN, MD | VERIZON WIRELESS | | 240-593 | LAUREL 238, MD | T-MOBILE | | 240-595 | WASHINGTON ZONE 3, MD | VERIZON WIRELESS | | 240-597 | GAITHERSBURG, MD | GLOBAL NAPS | | 240-599 | WASHINGTON ZONE 10, MD | LEVEL 3 | | 240-601 | WASHINGTON ZONE 3, MD | SPRINT PCS | | 240-602 | WASHINGTON ZONE 3, MD | SPRINT PCS | | 240-603 | WASHINGTON ZONE 3, MD | SPRINT PCS | | 240-604 | WASHINGTON ZONE 3, MD | SPRINT PCS | | 240-605 | WASHINGTON ZONE 3, MD | SPRINT PCS | | 240-606 | WASHINGTON ZONE 3, MD | SPRINT PCS | | 240-607 | WALDORF, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 240-611 | TELCO REPAIR SERVICE, MD | MULTIPLE OCN LISTING | | 240-616 | WASHINGTON ZONE 13, MD | VERIZON BUSINESS | | 240-619 | WASHINGTON ZONE 5, MD | VERIZON BUSINESS | | 240-620 | WASHINGTON ZONE 10, MD | VERIZON BUSINESS | | 240-621 | WASHINGTON ZONE 11, MD | VERIZON BUSINESS | | 240-624 | WASHINGTON ZONE 13, MD | VERIZON MARYLAND | | 240-625 | HAGERSTOWN, MD | SPRINT NEXTEL | | 240-626 | FREDERICK, MD | SPRINT PCS | | 240-627 | WASHINGTON ZONE 11, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 240-629 | FREDERICK, MD | VERIZON MARYLAND | | 240-631 | GAITHERSBURG, MD | VERIZON MARYLAND | | 240-632 | GAITHERSBURG, MD | VERIZON MARYLAND | | 240-638 | WASHINGTON ZONE 3, MD | LEVEL 3 | | 240-640 | WALDORF, MD | CRICKET COMMUNICATIONS | | 240-643 | WASHINGTON ZONE 3, MD | T-MOBILE | | 240-644 | WASHINGTON ZONE 2, MD | XO COMMUNICATIONS INC | | 240-645 | WASHINGTON ZONE 3, MD | XO COMMUNICATIONS INC | | 240-646 | LAUREL 236, MD | CAVALIER TELEPHONE | | 240-652 | MECHANICSVILLE, MD | XO COMMUNICATIONS INC | | 240-654 | GAITHERSBURG, MD | AT&T MOBILITY | | 240-662 | WASHINGTON ZONE 3, MD | VERIZON MARYLAND | | 240-667 | WASHINGTON ZONE 4, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 240-668 | DAMASCUS 236, MD | STARPOWER COMMUNICATIONS LLC | | 240-669 | WASHINGTON ZONE 11, MD | COMCAST DIGITAL PHONE | | 240-671 | WASHINGTON ZONE 2, MD | SPRINT PCS | | 240-672 | WASHINGTON ZONE 10, MD | VERIZON WIRELESS | | 240-674 | FREDERICK, MD | SPRINT NEXTEL | | 240-675 | MYERSVILLE, MD | AT&T MOBILITY | | 240-676 | WASHINGTON ZONE 3, MD | VERIZON WIRELESS | | 240-678 | WASHINGTON ZONE 3, MD | VERIZON WIRELESS | | 240-681 | BRANDYWINE, MD | ATX TELECOMMUNICATIONS SERVICES | | 240-682 | WALDORF, MD | STARPOWER COMMUNICATIONS LLC | | 240-683 | GAITHERSBURG, MD | VERIZON MARYLAND | | 240-684 | WASHINGTON ZONE 13, MD | VERIZON MARYLAND | | 240-685 | BRANDYWINE, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 240-686 | GAITHERSBURG, MD | VERIZON MARYLAND | | 240-687 | WASHINGTON ZONE 3, MD | VERIZON WIRELESS | | 240-688 | WASHINGTON ZONE 3, MD | VERIZON WIRELESS | | 240-691 | WASHINGTON ZONE 5, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 240-694 | WASHINGTON ZONE 2, MD | VERIZON MARYLAND | | 240-695 | WASHINGTON ZONE 5, MD | VERIZON MARYLAND | | 240-696 | WASHINGTON ZONE 4, MD | LEVEL 3 | | 240-699 | BUCKEYSTOWN, MD | VERIZON MARYLAND | | 240-700 | INTRALATA PIC VALIDATION, MD | MULTIPLE OCN LISTING | | 240-701 | WASHINGTON ZONE 3, MD | CRICKET COMMUNICATIONS | | 240-704 | WASHINGTON ZONE 3, MD | CRICKET COMMUNICATIONS | | 240-705 | WASHINGTON ZONE 3, MD | CRICKET COMMUNICATIONS | | 240-706 | WASHINGTON ZONE 3, MD | CRICKET COMMUNICATIONS | | 240-711 | TELECOMMUNICATIONS RELAY SERVICE, MD | MULTIPLE OCN LISTING | | 240-715 | WASHINGTON ZONE 10, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 240-718 | LEXINGTON PARK-GREAT MILLS, MD | XO COMMUNICATIONS INC | | 240-720 | GAITHERSBURG, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 240-722 | ASHTON 236, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 240-723 | WASHINGTON ZONE 3, MD | VERIZON WIRELESS | | 240-724 | WASHINGTON ZONE 6, MD | CAVALIER TELEPHONE | | 240-725 | LEXINGTON PARK-GREAT MILLS, MD | VERIZON MARYLAND | | 240-727 | CUMBERLAND, MD | AT&T MOBILITY | | 240-731 | WASHINGTON ZONE 10, MD | AT&T MOBILITY | | 240-737 | WASHINGTON ZONE 4, MD | CAVALIER TELEPHONE | | 240-743 | WASHINGTON ZONE 2, MD | AT&T MOBILITY | | 240-744 | WASHINGTON ZONE 2, MD | LEVEL 3 | | 240-745 | DAMASCUS 236, MD | XO COMMUNICATIONS INC | | 240-747 | WASHINGTON ZONE 11, MD | CAVALIER TELEPHONE | | 240-750 | GAITHERSBURG, MD | AT&T MOBILITY | | 240-751 | GAITHERSBURG, MD | LEVEL 3 | | 240-752 | WASHINGTON ZONE 2, MD | LEVEL 3 | | 240-753 | WASHINGTON ZONE 10, MD | LEVEL 3 | | 240-755 | LAUREL 238, MD | COMCAST DIGITAL PHONE | | 240-757 | WASHINGTON ZONE 13, MD | GLOBAL NAPS | | 240-764 | WASHINGTON ZONE 4, MD | XO COMMUNICATIONS INC | | 240-765 | WASHINGTON ZONE 5, MD | XO COMMUNICATIONS INC | | 240-766 | WASHINGTON ZONE 6, MD | XO COMMUNICATIONS INC | | 240-767 | WASHINGTON ZONE 5, MD | CAVALIER TELEPHONE | | 240-770 | WASHINGTON ZONE 4, MD | COMCAST DIGITAL PHONE | | 240-773 | WASHINGTON ZONE 10, MD | VERIZON MARYLAND | | 240-776 | LA PLATA, MD | LEVEL 3 | | 240-777 | WASHINGTON ZONE 10, MD | VERIZON MARYLAND | | 240-778 | WASHINGTON ZONE 10, MD | XO COMMUNICATIONS INC | | 240-779 | ASHTON 236, MD | CAVALIER TELEPHONE | | 240-780 | GAITHERSBURG, MD | LEVEL 3 | | 240-782 | DAMASCUS 236, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 240-783 | WASHINGTON ZONE 2, MD | MTE PAGING NETWORK | | 240-784 | MYERSVILLE, MD | T-MOBILE | | 240-786 | LAUREL 236, MD | LEVEL 3 | | 240-787 | BRANDYWINE, MD | LEVEL 3 | | 240-788 | WASHINGTON ZONE 5, MD | LEVEL 3 | | 240-790 | WASHINGTON ZONE 13, MD | LEVEL 3 | | 240-793 | GAITHERSBURG, MD | SPRINT NEXTEL | | 240-794 | LEXINGTON PARK-GREAT MILLS, MD | LEVEL 3 | | 240-804 | TOMPKINSVILLE, MD | XO COMMUNICATIONS INC | | 240-811 | ONE CALL SERVICES-PIPELINE AND UTILITY SAFETY, MD | MULTIPLE OCN LISTING | | 240-812 | POOLESVILLE, MD | GLOBAL CROSSING LOCAL SERVICES INC | | 240-813 | GAITHERSBURG, MD | ATX TELECOMMUNICATIONS SERVICES | | 240-818 | MYERSVILLE, MD | VERIZON MARYLAND | | 240-821 | WASHINGTON ZONE 3, MD | BROADVIEW NETWORKS | | 240-823 | BRANDYWINE, MD | XO COMMUNICATIONS INC | | 240-826 | WASHINGTON ZONE 10, MD | VERIZON MARYLAND | | 240-832 | WASHINGTON ZONE 2, MD | SPRINT NEXTEL | | 240-833 | WASHINGTON ZONE 11, MD | XO COMMUNICATIONS INC | | 240-837 | HUGHESVILLE, MD | XO COMMUNICATIONS INC | | 240-838 | WASHINGTON ZONE 5, MD | T-MOBILE | | 240-839 | WASHINGTON ZONE 3, MD | VERIZON WIRELESS | | 240-841 | LAUREL 238, MD | XO COMMUNICATIONS | | 240-842 | WASHINGTON ZONE 14, MD | XO COMMUNICATIONS | | 240-843 | WASHINGTON ZONE 13, MD | XO COMMUNICATIONS | | 240-844 | RIDGE, MD | XO COMMUNICATIONS INC | | 240-845 | WASHINGTON ZONE 13, MD | XO COMMUNICATIONS INC | | 240-846 | WASHINGTON ZONE 16, MD | XO COMMUNICATIONS INC | | 240-848 | GAITHERSBURG, MD | SPRINT NEXTEL | | 240-855 | WASHINGTON ZONE 2, MD | SPRINT PCS | | 240-857 | WASHINGTON ZONE 5, MD | LEVEL 3 | | 240-863 | WASHINGTON ZONE 3, MD | TW TELECOM | | 240-864 | WASHINGTON ZONE 10, MD | CAVALIER TELEPHONE | | 240-865 | WASHINGTON ZONE 14, MD | LEVEL 3 | | 240-868 | WASHINGTON ZONE 12, MD | CAVALIER TELEPHONE | | 240-876 | WASHINGTON ZONE 2, MD | SPRINT NEXTEL | | 240-880 | WASHINGTON ZONE 11, MD | LEVEL 3 | | 240-882 | WASHINGTON ZONE 5, MD | SPRINT NEXTEL | | 240-883 | ASHTON 236, MD | LEVEL 3 | | 240-888 | WASHINGTON ZONE 10, MD | AT&T MOBILITY | | 240-892 | WASHINGTON ZONE 15, MD | LEVEL 3 | | 240-893 | WASHINGTON ZONE 3, MD | AT&T MOBILITY | | 240-895 | LEXINGTON PARK-GREAT MILLS, MD | VERIZON MARYLAND | | 240-897 | WASHINGTON ZONE 16, MD | LEVEL 3 | | 240-898 | WASHINGTON ZONE 4, MD | LEVEL 3 | | 240-899 | WASHINGTON ZONE 2, MD | T-MOBILE | | 240-911 | EMERGENCY SERVICES, MD | MULTIPLE OCN LISTING | | 240-912 | GAITHERSBURG, MD | US LEC | | 240-920 | CUMBERLAND, MD | LEVEL 3 | | 240-925 | LEONARDTOWN, MD | VERIZON WIRELESS | | 240-929 | WASHINGTON ZONE 14, MD | CAVALIER TELEPHONE | | 240-936 | BROADBAND AND IP SERVICES, MD | VERIZON MARYLAND | | 240-938 | ASHTON 236, MD | T-MOBILE | | 240-949 | WASHINGTON ZONE 16, MD | CAVALIER TELEPHONE | | 240-958 | STANDARD PLANT TEST CODE, MD | MULTIPLE OCN LISTING | | 240-959 | STANDARD PLANT TEST CODE, MD | MULTIPLE OCN LISTING | | 240-964 | CUMBERLAND, MD | VERIZON MARYLAND | | 240-965 | WASHINGTON ZONE 13, MD | PAETEC COMMUNICATIONS | | 240-976 | DAMASCUS 236, MD | BALTIMORE-WASHINGTON TELEPHONE COMPANY | | 240-979 | CUMBERLAND, MD | LEVEL 3 | | 240-986 | NANJEMOY, MD | XO COMMUNICATIONS INC | | 240-988 | WASHINGTON ZONE 3, MD | SPRINT PCS | | 240-993 | INDIAN HEAD, MD | XO COMMUNICATIONS INC | | 240-994 | WASHINGTON ZONE 10, MD | VERIZON WIRELESS | | 240-997 | WASHINGTON ZONE 3, MD | VERIZON WIRELESS | | 240-999 | STANDARD PLANT TEST CODE, MD | VERIZON MARYLAND |
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