240 Area Code in Maryland, United States

Description

Area code 240 is an overlay for area code 301 in western and southern Maryland, including the suburbs of Washington, D.C., such as Rockville, Bethesda, Silver Spring, and Frederick. Introduced in 1997, it was the first overlay in Maryland and required the adoption of ten-digit dialing across the region. The 240 area code serves one of the most densely populated and economically important areas of the state, home to numerous federal agencies, biotech firms, and commuter communities. While 301 remains the legacy code, 240 is commonly assigned to mobile phones and new business lines. The 240/301 area is known for its affluence, diversity, and close proximity to the nation’s capital.

Time & Time Zone

Time zone:

Eastern (GMT -05:00)

Current time:

Map

Major Cities

City	Prefixes
Silver Spring	(240) 242 , (240) 247 , (240) 271 , (240) 283 , (240) 293 , (240) 309 , (240) 314 , (240) 331 , (240) 338 , (240) 350 , (240) 363 , (240) 371 , (240) 387 , (240) 393 , (240) 398 , (240) 423 , (240) 429 , (240) 430 , (240) 433 , (240) 438 , (240) 450 , (240) 460 , (240) 461 , (240) 463 , (240) 471 , (240) 472 , (240) 475 , (240) 476 , (240) 478 , (240) 481 , (240) 485 , (240) 491 , (240) 494 , (240) 501 , (240) 502 , (240) 504 , (240) 505 , (240) 514 , (240) 516 , (240) 560 , (240) 595 , (240) 627 , (240) 638 , (240) 643 , (240) 645 , (240) 662 , (240) 669 , (240) 676 , (240) 678 , (240) 688 , (240) 701 , (240) 723 , (240) 773 , (240) 777 , (240) 801 , (240) 821 , (240) 833 , (240) 868 , (240) 893 , (240) 997
Rockville	(240) 205 , (240) 221 , (240) 238 , (240) 276 , (240) 293 , (240) 314 , (240) 328 , (240) 368 , (240) 371 , (240) 383 , (240) 386 , (240) 399 , (240) 403 , (240) 406 , (240) 408 , (240) 421 , (240) 428 , (240) 433 , (240) 453 , (240) 462 , (240) 471 , (240) 499 , (240) 506 , (240) 516 , (240) 550 , (240) 551 , (240) 552 , (240) 558 , (240) 560 , (240) 567 , (240) 599 , (240) 620 , (240) 621 , (240) 631 , (240) 632 , (240) 641 , (240) 642 , (240) 672 , (240) 683 , (240) 694 , (240) 715 , (240) 731 , (240) 753 , (240) 773 , (240) 777 , (240) 778 , (240) 825 , (240) 826 , (240) 835 , (240) 864 , (240) 868 , (240) 888 , (240) 994
Bethesda	(240) 223 , (240) 235 , (240) 242 , (240) 264 , (240) 274 , (240) 277 , (240) 281 , (240) 283 , (240) 286 , (240) 316 , (240) 333 , (240) 336 , (240) 350 , (240) 354 , (240) 363 , (240) 395 , (240) 396 , (240) 425 , (240) 426 , (240) 430 , (240) 465 , (240) 482 , (240) 483 , (240) 497 , (240) 514 , (240) 515 , (240) 543 , (240) 601 , (240) 605 , (240) 627 , (240) 644 , (240) 669 , (240) 671 , (240) 694 , (240) 705 , (240) 706 , (240) 743 , (240) 747 , (240) 783 , (240) 800 , (240) 832 , (240) 833 , (240) 855 , (240) 899
Frederick	(240) 215 , (240) 225 , (240) 236 , (240) 285 , (240) 315 , (240) 341 , (240) 344 , (240) 351 , (240) 356 , (240) 357 , (240) 367 , (240) 379 , (240) 397 , (240) 405 , (240) 409 , (240) 415 , (240) 422 , (240) 439 , (240) 440 , (240) 446 , (240) 457 , (240) 529 , (240) 566 , (240) 575 , (240) 578 , (240) 586 , (240) 600 , (240) 608 , (240) 626 , (240) 629 , (240) 651 , (240) 661 , (240) 674 , (240) 699 , (240) 716 , (240) 772
Laurel	(240) 228 , (240) 264 , (240) 278 , (240) 294 , (240) 295 , (240) 353 , (240) 355 , (240) 374 , (240) 418 , (240) 432 , (240) 444 , (240) 447 , (240) 456 , (240) 459 , (240) 470 , (240) 498 , (240) 524 , (240) 547 , (240) 554 , (240) 565 , (240) 568 , (240) 581 , (240) 583 , (240) 593 , (240) 602 , (240) 603 , (240) 616 , (240) 618 , (240) 646 , (240) 713 , (240) 755 , (240) 786 , (240) 841 , (240) 988
Chevy Chase	(240) 204 , (240) 235 , (240) 274 , (240) 277 , (240) 281 , (240) 286 , (240) 333 , (240) 336 , (240) 340 , (240) 370 , (240) 395 , (240) 396 , (240) 400 , (240) 425 , (240) 426 , (240) 445 , (240) 464 , (240) 465 , (240) 480 , (240) 482 , (240) 483 , (240) 497 , (240) 515 , (240) 519 , (240) 541 , (240) 644 , (240) 671 , (240) 744 , (240) 752 , (240) 783 , (240) 832 , (240) 899
Gaithersburg	(240) 243 , (240) 246 , (240) 252 , (240) 306 , (240) 314 , (240) 327 , (240) 361 , (240) 364 , (240) 388 , (240) 404 , (240) 449 , (240) 453 , (240) 454 , (240) 477 , (240) 597 , (240) 631 , (240) 632 , (240) 654 , (240) 683 , (240) 686 , (240) 720 , (240) 750 , (240) 751 , (240) 780 , (240) 793 , (240) 813 , (240) 848 , (240) 876 , (240) 912
Brentwood	(240) 200 , (240) 232 , (240) 260 , (240) 268 , (240) 273 , (240) 290 , (240) 296 , (240) 413 , (240) 424 , (240) 468 , (240) 487 , (240) 533 , (240) 539 , (240) 612 , (240) 613 , (240) 630 , (240) 667 , (240) 670 , (240) 696 , (240) 704 , (240) 737 , (240) 762 , (240) 764 , (240) 770 , (240) 788 , (240) 790 , (240) 880 , (240) 897
Waldorf	(240) 210 , (240) 213 , (240) 216 , (240) 222 , (240) 229 , (240) 279 , (240) 299 , (240) 300 , (240) 320 , (240) 346 , (240) 375 , (240) 416 , (240) 419 , (240) 427 , (240) 435 , (240) 448 , (240) 458 , (240) 518 , (240) 585 , (240) 607 , (240) 638 , (240) 640 , (240) 682 , (240) 740 , (240) 754
Hagerstown	(240) 203 , (240) 217 , (240) 231 , (240) 291 , (240) 310 , (240) 313 , (240) 329 , (240) 347 , (240) 382 , (240) 420 , (240) 452 , (240) 469 , (240) 500 , (240) 513 , (240) 520 , (240) 527 , (240) 625 , (240) 707 , (240) 734 , (240) 818
Hyattsville	(240) 232 , (240) 268 , (240) 273 , (240) 290 , (240) 533 , (240) 582 , (240) 604 , (240) 606 , (240) 788 , (240) 790 , (240) 839 , (240) 843 , (240) 880 , (240) 897 , (240) 898
Bowie	(240) 206 , (240) 245 , (240) 266 , (240) 270 , (240) 272 , (240) 334 , (240) 335 , (240) 375 , (240) 486 , (240) 544 , (240) 548 , (240) 556 , (240) 842 , (240) 929

Counties

County	Prefixes
Montgomery	(240) 204 , (240) 205 , (240) 207 , (240) 220 , (240) 221 , (240) 223 , (240) 234 , (240) 235 , (240) 238 , (240) 242 , (240) 243 , (240) 246 , (240) 247 , (240) 252 , (240) 255 , (240) 261 , (240) 262 , (240) 263 , (240) 264 , (240) 271 , (240) 274 , (240) 276 , (240) 277 , (240) 281 , (240) 283 , (240) 286 , (240) 292 , (240) 293 , (240) 306 , (240) 308 , (240) 309 , (240) 314 , (240) 316 , (240) 325 , (240) 327 , (240) 328 , (240) 330 , (240) 331 , (240) 333 , (240) 336 , (240) 338 , (240) 340 , (240) 342 , (240) 345 , (240) 350 , (240) 354 , (240) 358 , (240) 361 , (240) 363 , (240) 364 , (240) 365 , (240) 368 , (240) 370 , (240) 371 , (240) 372 , (240) 380 , (240) 383 , (240) 386 , (240) 387 , (240) 388 , (240) 389 , (240) 390 , (240) 393 , (240) 395 , (240) 396 , (240) 398 , (240) 399 , (240) 400 , (240) 401 , (240) 403 , (240) 404 , (240) 406 , (240) 408 , (240) 421 , (240) 423 , (240) 425 , (240) 426 , (240) 428 , (240) 429 , (240) 430 , (240) 433 , (240) 437 , (240) 438 , (240) 445 , (240) 447 , (240) 449 , (240) 450 , (240) 453 , (240) 454 , (240) 460 , (240) 461 , (240) 462 , (240) 463 , (240) 464 , (240) 465 , (240) 471 , (240) 472 , (240) 475 , (240) 476 , (240) 477 , (240) 478 , (240) 480 , (240) 481 , (240) 482 , (240) 483 , (240) 485 , (240) 489 , (240) 491 , (240) 494 , (240) 497 , (240) 499 , (240) 501 , (240) 502 , (240) 504 , (240) 505 , (240) 506 , (240) 507 , (240) 514 , (240) 515 , (240) 516 , (240) 519 , (240) 536 , (240) 541 , (240) 543 , (240) 550 , (240) 551 , (240) 552 , (240) 558 , (240) 559 , (240) 560 , (240) 567 , (240) 595 , (240) 597 , (240) 599 , (240) 601 , (240) 605 , (240) 620 , (240) 621 , (240) 627 , (240) 631 , (240) 632 , (240) 638 , (240) 641 , (240) 642 , (240) 643 , (240) 644 , (240) 645 , (240) 650 , (240) 654 , (240) 662 , (240) 668 , (240) 669 , (240) 671 , (240) 672 , (240) 676 , (240) 678 , (240) 683 , (240) 686 , (240) 687 , (240) 688 , (240) 694 , (240) 701 , (240) 705 , (240) 706 , (240) 715 , (240) 720 , (240) 722 , (240) 723 , (240) 731 , (240) 743 , (240) 744 , (240) 745 , (240) 747 , (240) 750 , (240) 751 , (240) 752 , (240) 753 , (240) 773 , (240) 777 , (240) 778 , (240) 779 , (240) 780 , (240) 782 , (240) 783 , (240) 793 , (240) 800 , (240) 801 , (240) 812 , (240) 813 , (240) 821 , (240) 825 , (240) 826 , (240) 832 , (240) 833 , (240) 835 , (240) 848 , (240) 855 , (240) 864 , (240) 868 , (240) 876 , (240) 883 , (240) 888 , (240) 893 , (240) 899 , (240) 912 , (240) 938 , (240) 976 , (240) 994 , (240) 997
Prince Georges	(240) 200 , (240) 206 , (240) 224 , (240) 232 , (240) 241 , (240) 244 , (240) 245 , (240) 250 , (240) 253 , (240) 260 , (240) 261 , (240) 264 , (240) 265 , (240) 266 , (240) 267 , (240) 268 , (240) 269 , (240) 270 , (240) 272 , (240) 273 , (240) 289 , (240) 290 , (240) 296 , (240) 297 , (240) 303 , (240) 304 , (240) 305 , (240) 312 , (240) 318 , (240) 326 , (240) 334 , (240) 335 , (240) 337 , (240) 339 , (240) 348 , (240) 353 , (240) 355 , (240) 375 , (240) 381 , (240) 391 , (240) 392 , (240) 402 , (240) 407 , (240) 413 , (240) 414 , (240) 417 , (240) 418 , (240) 424 , (240) 432 , (240) 441 , (240) 447 , (240) 455 , (240) 456 , (240) 462 , (240) 467 , (240) 468 , (240) 473 , (240) 479 , (240) 486 , (240) 487 , (240) 492 , (240) 493 , (240) 498 , (240) 508 , (240) 510 , (240) 512 , (240) 525 , (240) 533 , (240) 539 , (240) 542 , (240) 544 , (240) 545 , (240) 546 , (240) 548 , (240) 553 , (240) 556 , (240) 568 , (240) 573 , (240) 582 , (240) 583 , (240) 602 , (240) 603 , (240) 604 , (240) 606 , (240) 612 , (240) 613 , (240) 619 , (240) 624 , (240) 630 , (240) 646 , (240) 667 , (240) 670 , (240) 681 , (240) 684 , (240) 685 , (240) 691 , (240) 695 , (240) 696 , (240) 704 , (240) 724 , (240) 737 , (240) 757 , (240) 762 , (240) 764 , (240) 765 , (240) 766 , (240) 767 , (240) 770 , (240) 787 , (240) 788 , (240) 790 , (240) 823 , (240) 838 , (240) 839 , (240) 842 , (240) 843 , (240) 845 , (240) 846 , (240) 857 , (240) 863 , (240) 864 , (240) 880 , (240) 882 , (240) 892 , (240) 897 , (240) 898 , (240) 929 , (240) 949 , (240) 965 , (240) 988
Frederick	(240) 207 , (240) 215 , (240) 225 , (240) 234 , (240) 236 , (240) 262 , (240) 263 , (240) 285 , (240) 288 , (240) 307 , (240) 308 , (240) 315 , (240) 323 , (240) 325 , (240) 341 , (240) 344 , (240) 351 , (240) 356 , (240) 357 , (240) 358 , (240) 365 , (240) 367 , (240) 369 , (240) 379 , (240) 385 , (240) 394 , (240) 397 , (240) 405 , (240) 409 , (240) 415 , (240) 422 , (240) 436 , (240) 439 , (240) 440 , (240) 446 , (240) 457 , (240) 490 , (240) 529 , (240) 566 , (240) 575 , (240) 578 , (240) 586 , (240) 600 , (240) 608 , (240) 626 , (240) 629 , (240) 651 , (240) 661 , (240) 668 , (240) 674 , (240) 675 , (240) 699 , (240) 716 , (240) 745 , (240) 772 , (240) 782 , (240) 784 , (240) 818
Charles	(240) 208 , (240) 209 , (240) 210 , (240) 213 , (240) 216 , (240) 218 , (240) 219 , (240) 222 , (240) 229 , (240) 230 , (240) 233 , (240) 254 , (240) 257 , (240) 279 , (240) 299 , (240) 300 , (240) 320 , (240) 332 , (240) 346 , (240) 349 , (240) 352 , (240) 359 , (240) 375 , (240) 376 , (240) 377 , (240) 412 , (240) 416 , (240) 419 , (240) 427 , (240) 435 , (240) 448 , (240) 458 , (240) 503 , (240) 518 , (240) 523 , (240) 528 , (240) 530 , (240) 540 , (240) 574 , (240) 585 , (240) 607 , (240) 638 , (240) 640 , (240) 682 , (240) 740 , (240) 754 , (240) 776 , (240) 804 , (240) 837 , (240) 986 , (240) 993
Howard	(240) 228 , (240) 278 , (240) 280 , (240) 294 , (240) 295 , (240) 319 , (240) 324 , (240) 374 , (240) 444 , (240) 456 , (240) 459 , (240) 470 , (240) 524 , (240) 547 , (240) 554 , (240) 565 , (240) 568 , (240) 581 , (240) 593 , (240) 616 , (240) 618 , (240) 708 , (240) 712 , (240) 713 , (240) 755 , (240) 786 , (240) 841 , (240) 865
Saint Marys	(240) 201 , (240) 214 , (240) 237 , (240) 239 , (240) 248 , (240) 249 , (240) 256 , (240) 258 , (240) 282 , (240) 298 , (240) 317 , (240) 384 , (240) 431 , (240) 434 , (240) 466 , (240) 526 , (240) 538 , (240) 561 , (240) 577 , (240) 587 , (240) 652 , (240) 718 , (240) 725 , (240) 794 , (240) 844 , (240) 895 , (240) 925
Anne Arundel	(240) 261 , (240) 265 , (240) 267 , (240) 294 , (240) 295 , (240) 326 , (240) 339 , (240) 373 , (240) 374 , (240) 509 , (240) 510 , (240) 524 , (240) 525 , (240) 545 , (240) 547 , (240) 554 , (240) 565 , (240) 568 , (240) 573 , (240) 581 , (240) 593 , (240) 616 , (240) 755 , (240) 786 , (240) 841 , (240) 892
Washington	(240) 203 , (240) 217 , (240) 231 , (240) 251 , (240) 287 , (240) 291 , (240) 310 , (240) 313 , (240) 329 , (240) 343 , (240) 347 , (240) 366 , (240) 382 , (240) 420 , (240) 452 , (240) 469 , (240) 500 , (240) 513 , (240) 517 , (240) 520 , (240) 527 , (240) 625 , (240) 707 , (240) 714 , (240) 734 , (240) 818
Allegany	(240) 284 , (240) 322 , (240) 362 , (240) 378 , (240) 522 , (240) 580 , (240) 727 , (240) 803 , (240) 920 , (240) 964 , (240) 979
Garrett	(240) 212 , (240) 275 , (240) 321 , (240) 442 , (240) 488
Baltimore	(240) 280 , (240) 865
Calvert	(240) 535

Telephone Carriers

Carrier	Type	Prefixes (%)
Verizon Maryland Inc	Landline	15%
Sprint Spectrum L P	Wireless	10%
Cellco Partnership Dba Verizon Wireless Md	Wireless	7%
New Cingular Wireless Pcs Llc Dc	Wireless	6%
Global Naps South Inc Md	Landline	6%
Xo Maryland Llc	Landline	5%
Cavalier Telephone Mid Atlantic Llc Md	Landline	4%
Global Crossing Local Services Inc Md	Landline	4%
Omnipoint Communications Cap Operations Llc	Wireless	4%
Broadwing Communications Llc Md	Landline	4%
Us Lec Of Maryland Inc	Landline	3%
Sprint Spectrum L P Md	Landline	3%
Allegiance Telecom Inc Md	Landline	3%
Cavalier East Llc Md	Landline	3%
Paetec Communications Inc Md	Landline	2%
Level 3 Communications Llc Md	Wireless	2%
Core Communications Inc Md	Landline	2%
Starpower Communications Llc Md	Landline	2%
Telcove Operations Inc Md	Landline	1%
Bandwidth Com Clec Llc Md	Landline	1%
Peerless Network Of Illinois Llc Il	Landline	1%
Comcast Phone Of Northern Maryland Inc Md	Landline	1%
Teleport Communications America Llc Dc	Landline	1%
Mci Worldcom Communications Inc Md	Landline	1%
Leap Wireless Intl Inc Dba Cricket Comm Inc	Wireless	1%
Paetec Communications Inc Dc	Landline	< 1%
Metro Pcs Inc		< 1%
Rnk Inc	Landline	< 1%
Shentel Communications Company Md	Landline	< 1%
Dslnet Communications Va Inc Md	Landline	< 1%
Lightwave Communications Llc Md	Landline	< 1%
Peerless Network Of Maryland Llc	Landline	< 1%
Tw Telecom Of Maryland Llc Md	Landline	< 1%
Mte Inc Dba Mte Paging Network	Wireless	< 1%
Atx Telecommunications Services Ltd	Landline	< 1%
At T Local	Landline	< 1%
Halo Wireless Services Inc	Wireless	< 1%
Tidalwave Telephone Inc	Landline	< 1%
Baltimore Washington Telephone Bwt	Landline	< 1%
Lumos Networks Inc Va	Landline	< 1%
Teleport Communications America Llc Md	Landline	< 1%
Infotelecom Llc Dc	Landline	< 1%
Uscoc Of Cumberland Inc Dba United States Cel Md	Wireless	< 1%
365 Wireless Llc		< 1%
Ymax Communications Corp Md	Landline	< 1%

Prefixes

Prefix	City	Carrier	Type
(240) 581	Laurel	Paetec Communications, Inc. - Dc	Landline
(240) 231	Hagerstown	Core Communications, Inc. - Md	Landline
(240) 602	Laurel	Sprint Spectrum L.p.	Wireless
(240) 715	Rockville	Global Crossing Local Services, Inc.-md	Landline
(240) 750	Montgomery Village	New Cingular Wireless Pcs, Llc - Dc	Wireless
(240) 780	Gaithersburg	Broadwing Communications. Llc - Md	Landline
(240) 214	Mechanicsville	Peerless Network of Illinois, Llc - Il	Landline
(240) 773	Rockville	Verizon Maryland, Inc.	Landline
(240) 755	Laurel	Comcast Phone of Northern Maryland, Inc. - Md	Landline
(240) 280	Halethorpe	Comcast Phone of Northern Maryland, Inc. - Md	Landline
(240) 434	Leonardtown	Broadwing Communications. Llc - Md	Landline
(240) 587	Leonardtown	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 492	District Heights	Us Lec of Maryland, Inc.	Landline
(240) 563
(240) 646	Laurel	Cavalier East Llc - Md	Landline
(240) 253	Temple Hills	Global Crossing Local Services, Inc.-md	Landline
(240) 688	Silver Spring	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 669	Silver Spring	Comcast Phone of Northern Maryland, Inc. - Md	Landline
(240) 223	Bethesda	Allegiance Telecom, Inc. - Md	Landline
(240) 359	Indian Head	Global Naps South, Inc. - Md	Landline
(240) 671	Chevy Chase	Sprint Spectrum L.p.	Landline
(240) 745	Clarksburg	Xo Maryland, Llc	Landline
(240) 200	Brentwood	Bandwidth.com Clec, Llc - Md	Landline
(240) 326	Upper Marlboro	Cavalier Telephone Mid-atlantic, Llc - Md	Landline
(240) 225	Frederick	Core Communications, Inc. - Md	Landline
(240) 379	Frederick	Verizon Maryland, Inc.	Landline
(240) 470	Laurel	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 479	Fort Washington	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 644	Chevy Chase	Xo Maryland, Llc	Landline
(240) 708	Columbia	Level 3 Communications, Llc - Md	Wireless
(240) 264	Laurel	Verizon Maryland, Inc.	Landline
(240) 365	Monrovia	Baltimore-washington Telephone Bwt	Landline
(240) 533	Brentwood	Teleport Communications America, Llc - Dc	Landline
(240) 582	Mount Rainier	Verizon Maryland, Inc.	Landline
(240) 691	District Heights	Global Crossing Local Services, Inc.-md	Landline
(240) 597	Gaithersburg	Global Naps South, Inc. - Md	Landline
(240) 266	Lanham	Global Naps South, Inc. - Md	Landline
(240) 486	Lanham	Omnipoint Communications Cap Operations, Llc	Wireless
(240) 232	Brentwood	Broadwing Communications. Llc - Md	Landline
(240) 722	Ashton	Global Crossing Local Services, Inc.-md	Landline
(240) 219	Issue	Global Naps South, Inc. - Md	Landline
(240) 423	Silver Spring	Omnipoint Communications Cap Operations, Llc	Wireless
(240) 237	Callaway	Teleport Communications America, Llc - Dc	Landline
(240) 672	Rockville	Cellco Partnership Dba Verizon Wireless - Md	Landline
(240) 727	Cumberland	New Cingular Wireless Pcs, Llc - Dc	Wireless
(240) 285	Frederick	Cellco Partnership Dba Verizon Wireless - Md	Landline
(240) 334	Bowie	Global Crossing Local Services, Inc.-md	Landline
(240) 615		Metro Pcs, Inc.
(240) 207	Clarksburg	Cavalier East Llc - Md	Landline
(240) 560	Silver Spring	Xo Maryland, Llc	Landline
(240) 625	Hagerstown	Sprint Spectrum L.p.	Landline
(240) 632	Gaithersburg	Verizon Maryland, Inc.	Landline
(240) 363	Silver Spring	Global Naps South, Inc. - Md	Landline
(240) 273	Brentwood	Broadwing Communications. Llc - Md	Landline
(240) 734	Hagerstown	Bandwidth.com Clec, Llc - Md	Landline
(240) 839	Hyattsville	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 577	Leonardtown	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 578	Frederick	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 779	Ashton	Cavalier East Llc - Md	Landline
(240) 794	Great Mills	Broadwing Communications. Llc - Md	Landline
(240) 876	Gaithersburg	Sprint Spectrum L.p.	Wireless
(240) 687	Kensington	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 529	Frederick	Verizon Maryland, Inc.	Landline
(240) 272	Bowie	Sprint Spectrum L.p.	Landline
(240) 384	Callaway	Global Naps South, Inc. - Md	Landline
(240) 464	Chevy Chase	Sprint Spectrum L.p.	Landline
(240) 696	Mount Rainier	Level 3 Communications, Llc - Md	Landline
(240) 239	Leonardtown	Core Communications, Inc. - Md	Landline
(240) 427	Waldorf	Xo Maryland, Llc	Landline
(240) 228	Laurel	Verizon Maryland, Inc.	Landline
(240) 800	Bethesda	Core Communications, Inc. - Md	Landline
(240) 236	Woodsboro	Verizon Maryland, Inc.	Landline
(240) 242	Bethesda	Starpower Communications, Llc - Md	Landline
(240) 374	Laurel	Global Crossing Local Services, Inc.-md	Landline
(240) 586	Frederick	Verizon Maryland, Inc.	Landline
(240) 788	Brentwood	Broadwing Communications. Llc - Md	Landline
(240) 258	Ridge	Teleport Communications America, Llc - Dc	Landline
(240) 552	Rockville	Leap Wireless Intl, Inc. Dba Cricket Comm, Inc.	Wireless
(240) 707	Hagerstown	New Cingular Wireless Pcs, Llc - Dc	Wireless
(240) 460	Silver Spring	New Cingular Wireless Pcs, Llc - Dc	Wireless
(240) 465	Bethesda	Global Naps South, Inc. - Md	Landline
(240) 503	Issue	Peerless Network of Maryland, Llc	Landline
(240) 848	Gaithersburg	Sprint Spectrum L.p. - Md	Landline
(240) 303	Andrews Air Force Base	Cavalier Telephone Mid-atlantic, Llc - Md	Landline
(240) 265	Lothian	Sprint Spectrum L.p.	Landline
(240) 444	Laurel	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 514	Bethesda	Us Lec of Maryland, Inc.	Landline
(240) 458	Waldorf	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 541	Chevy Chase	Sprint Spectrum L.p.	Wireless
(240) 654	Gaithersburg	New Cingular Wireless Pcs, Llc - Dc	Wireless
(240) 515	Bethesda	New Cingular Wireless Pcs, Llc - Dc	Wireless
(240) 744	Chevy Chase	Broadwing Communications. Llc - Md	Landline
(240) 623
(240) 401	Germantown	New Cingular Wireless Pcs, Llc - Dc	Wireless
(240) 770	Mount Rainier	Comcast Phone of Northern Maryland, Inc. - Md	Landline
(240) 314	Potomac	Verizon Maryland, Inc.	Landline
(240) 616	Laurel	Mci Worldcom Communications, Inc. - Md	Landline
(240) 467	Fort Washington	Comcast Phone of Northern Maryland, Inc. - Md	Landline
(240) 248	Ridge	Global Naps South, Inc. - Md	Landline
(240) 979	Cumberland	Level 3 Communications, Llc - Md	Landline
(240) 337	District Heights	Global Naps South, Inc. - Md	Landline
(240) 360
(240) 803	Cumberland	New Cingular Wireless Pcs, Llc - Dc	Wireless
(240) 262	Clarksburg	Sprint Spectrum L.p.	Landline
(240) 205	Rockville	New Cingular Wireless Pcs, Llc - Dc	Wireless
(240) 431	Great Mills	Sprint Spectrum L.p.	Wireless
(240) 525	Lothian	Global Naps South, Inc. - Md	Landline
(240) 684	College Park	Verizon Maryland, Inc.	Landline
(240) 539	Mount Rainier	Global Naps South, Inc. - Md	Landline
(240) 621	Rockville	Mci Worldcom Communications, Inc. - Md	Landline
(240) 383	Rockville	New Cingular Wireless Pcs, Llc - Dc	Wireless
(240) 765	Suitland	Xo Maryland, Llc	Landline
(240) 573	Lothian	Global Crossing Local Services, Inc.-md	Landline
(240) 290	Brentwood	Allegiance Telecom, Inc. - Md	Landline
(240) 657
(240) 501	Silver Spring	Sprint Spectrum L.p.	Wireless
(240) 471	Silver Spring	Global Crossing Local Services, Inc.-md	Landline
(240) 336	Chevy Chase	Core Communications, Inc. - Md	Landline
(240) 997	Silver Spring	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 440	Frederick	Leap Wireless Intl, Inc. Dba Cricket Comm, Inc.	Wireless
(240) 790	Brentwood	Broadwing Communications. Llc - Md	Landline
(240) 719
(240) 375	Indian Head	Sprint Spectrum L.p. - Md	Wireless
(240) 976	Damascus	Baltimore-washington Telephone Bwt
(240) 880	Hyattsville	Broadwing Communications. Llc - Md	Landline
(240) 607	Waldorf	Global Crossing Local Services, Inc.-md	Landline
(240) 685	Brandywine	Global Crossing Local Services, Inc.-md	Landline
(240) 215	Frederick	Telcove Operations, Inc. - Md	Landline
(240) 413	Mount Rainier	Omnipoint Communications Cap Operations, Llc	Wireless
(240) 882	Suitland	Sprint Spectrum L.p. - Md	Wireless
(240) 389	Ashton	Atx Telecommunications Services, Ltd	Landline
(240) 447	Montgomery Village	New Cingular Wireless Pcs, Llc - Dc	Wireless
(240) 751	Gaithersburg	Telcove Operations, Inc. - Md	Landline
(240) 757	Greenbelt	Global Naps South, Inc. - Md	Landline
(240) 312	Suitland	Cavalier Telephone Mid-atlantic, Llc - Md	Landline
(240) 506	Rockville	New Cingular Wireless Pcs, Llc - Dc	Wireless
(240) 522	Cumberland	Sprint Spectrum L.p.	Wireless
(240) 260	Brentwood	Allegiance Telecom, Inc. - Md	Landline
(240) 294	Laurel	Xo Maryland, Llc	Landline
(240) 441	Temple Hills	Omnipoint Communications Cap Operations, Llc	Wireless
(240) 550	Rockville	Leap Wireless Intl, Inc. Dba Cricket Comm, Inc.	Wireless
(240) 753	Rockville	Telcove Operations, Inc. - Md	Landline
(240) 949	Andrews Air Force Base	Cavalier East Llc - Md	Landline
(240) 234	Monrovia	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 524	Laurel	Global Naps South, Inc. - Md	Landline
(240) 453	Potomac	Verizon Maryland, Inc.	Landline
(240) 613	Brentwood	Us Lec of Maryland, Inc.	Landline
(240) 490	Middletown	Omnipoint Communications Cap Operations, Llc	Wireless
(240) 536	Ashton	Global Naps South, Inc. - Md	Landline
(240) 580	Cumberland	Sprint Spectrum L.p.	Wireless
(240) 546	Andrews Air Force Base	Us Lec of Maryland, Inc.	Landline
(240) 652	Mechanicsville	Xo Maryland, Llc	Landline
(240) 712	Columbia	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 683	Derwood	Verizon Maryland, Inc.	Landline
(240) 241	Riverdale	Starpower Communications, Llc - Md	Landline
(240) 347	Hagerstown	Bandwidth.com Clec, Llc - Md	Landline
(240) 372	Potomac	Sprint Spectrum L.p.	Wireless
(240) 321	Oakland	Uscoc of Cumberland, Inc. Dba United States Cel Md	Wireless
(240) 747	Bethesda	Cavalier East Llc - Md	Landline
(240) 483	Bethesda	Comcast Phone of Northern Maryland, Inc. - Md	Landline
(240) 297	Riverdale	Level 3 Communications, Llc - Md	Landline
(240) 892	Lothian	Broadwing Communications. Llc - Md	Landline
(240) 938	Ashton	Omnipoint Communications Cap Operations, Llc	Wireless
(240) 286	Bethesda	Sprint Spectrum L.p.	Wireless
(240) 682	Waldorf	Starpower Communications, Llc - Md	Landline
(240) 488	Oakland	Shentel Communications Company - Md	Landline
(240) 366	Williamsport	At&t Local	Landline
(240) 380	Glen Echo	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 313	Hagerstown	Verizon Maryland, Inc.	Landline
(240) 838	District Heights	Omnipoint Communications Cap Operations, Llc	Wireless
(240) 832	Bethesda	Sprint Spectrum L.p.	Wireless
(240) 382	Hagerstown	Teleport Communications America, Llc - Md	Landline
(240) 512	College Park	Core Communications, Inc. - Md	Landline
(240) 210	Waldorf	New Cingular Wireless Pcs, Llc - Dc	Wireless
(240) 547	Laurel	Level 3 Communications, Llc - Md	Landline
(240) 718	Callaway	Xo Maryland, Llc	Landline
(240) 737	Brentwood	Cavalier East Llc - Md	Landline
(240) 783	Chevy Chase	Mte, Inc. Dba Mte Paging Network	Wireless
(240) 238	Rockville	Paetec Communications, Inc. - Md	Landline
(240) 897	Brentwood	Broadwing Communications. Llc - Md	Landline
(240) 398	Silver Spring	Sprint Spectrum L.p.	Wireless
(240) 740	Waldorf	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 378	Cumberland	Core Communications, Inc. - Md	Landline
(240) 605	Bethesda	Sprint Spectrum L.p.	Wireless
(240) 787	Brandywine	Broadwing Communications. Llc - Md	Landline
(240) 497	Bethesda	Verizon Maryland, Inc.	Landline
(240) 706	Bethesda	Leap Wireless Intl, Inc. Dba Cricket Comm, Inc.	Wireless
(240) 324	Highland	Ymax Communications Corp. - Md	Landline
(240) 777	Germantown	Verizon Maryland, Inc.	Landline
(240) 724	Temple Hills	Cavalier East Llc - Md	Landline
(240) 837	Hughesville	Xo Maryland, Llc	Landline
(240) 209	Indian Head	Peerless Network of Illinois, Llc - Il	Landline
(240) 504	Silver Spring	Sprint Spectrum L.p.	Wireless
(240) 277	Chevy Chase	Sprint Spectrum L.p.	Wireless
(240) 436	Ijamsville	Telcove Operations, Inc. - Md	Landline
(240) 472	Silver Spring	New Cingular Wireless Pcs, Llc - Dc	Wireless
(240) 720	Gaithersburg	Global Crossing Local Services, Inc.-md	Landline
(240) 631	Gaithersburg	Verizon Maryland, Inc.	Landline
(240) 263	Clarksburg	Sprint Spectrum L.p.	Landline
(240) 493	Temple Hills	Us Lec of Maryland, Inc.	Landline
(240) 388	Montgomery Village	Sprint Spectrum L.p. - Md	Wireless
(240) 855	Bethesda	Sprint Spectrum L.p.	Wireless
(240) 305	Clinton	Sprint Spectrum L.p.	Wireless
(240) 764	Mount Rainier	Xo Maryland, Llc	Landline
(240) 284	Frostburg	Level 3 Communications, Llc - Md	Landline
(240) 395	Bethesda	Cavalier Telephone Mid-atlantic, Llc - Md	Landline
(240) 328	Rockville	Verizon Maryland, Inc.	Landline
(240) 235	Chevy Chase	Paetec Communications, Inc. - Md	Landline
(240) 462	Andrews Air Force Base	Sprint Spectrum L.p.	Wireless
(240) 274	Chevy Chase	New Cingular Wireless Pcs, Llc - Dc	Wireless
(240) 702
(240) 403	Rockville	Cavalier Telephone Mid-atlantic, Llc - Md	Landline
(240) 454	Gaithersburg	Paetec Communications, Inc. - Md	Wireless
(240) 508	District Heights	Sprint Spectrum L.p. - Md	Wireless
(240) 674	Frederick	Sprint Spectrum L.p.	Wireless
(240) 542	Riverdale	Us Lec of Maryland, Inc.	Landline
(240) 433	Rockville	Cavalier Telephone Mid-atlantic, Llc - Md	Landline
(240) 695	Temple Hills	Verizon Maryland, Inc.	Landline
(240) 562
(240) 339	Lothian	Cavalier East Llc - Md	Landline
(240) 298	Leonardtown	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 835	Rockville		Landline
(240) 278	Laurel	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 818	Hagerstown	Verizon Maryland, Inc.	Landline
(240) 865	Halethorpe	Level 3 Communications, Llc - Md	Landline
(240) 994	Rockville	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 776	Bel Alton	Broadwing Communications. Llc - Md	Landline
(240) 268	Hyattsville	Allegiance Telecom, Inc. - Md	Landline
(240) 841	Laurel	Allegiance Telecom, Inc. - Md	Landline
(240) 868	Rockville	Cavalier East Llc - Md	Landline
(240) 315	Frederick	Verizon Maryland, Inc.	Landline
(240) 888	Rockville	New Cingular Wireless Pcs, Llc - Dc	Wireless
(240) 345	Sandy Spring	Level 3 Communications, Llc - Md	Landline
(240) 373	Odenton	Verizon Maryland, Inc.	Landline
(240) 392	District Heights	Starpower Communications, Llc - Md	Landline
(240) 281	Bethesda	New Cingular Wireless Pcs, Llc - Dc	Wireless
(240) 863	Upper Marlboro	Tw Telecom of Maryland Llc - Md	Landline
(240) 554	Laurel	Allegiance Telecom, Inc. - Md	Landline
(240) 358	Monrovia	Global Naps South, Inc. - Md	Landline
(240) 369	Mount Airy	Core Communications, Inc. - Md	Landline
(240) 606	Hyattsville	Sprint Spectrum L.p.	Wireless
(240) 675	Myersville	New Cingular Wireless Pcs, Llc - Dc	Wireless
(240) 323	Emmitsburg	Core Communications, Inc. - Md	Landline
(240) 212	Oakland	Core Communications, Inc. - Md	Landline
(240) 477	Montgomery Village	Lightwave Communications, Llc - Md	Landline
(240) 415	Frederick	Ymax Communications Corp. - Md	Landline
(240) 455	Suitland	Paetec Communications, Inc. - Md	Landline
(240) 540	Charles
(240) 624	Riverdale	Verizon Maryland, Inc.	Landline
(240) 762	Brentwood	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 430	Silver Spring	Cavalier Telephone Mid-atlantic, Llc - Md	Landline
(240) 377	Indian Head	Global Crossing Local Services, Inc.-md	Landline
(240) 895	Patuxent River	Verizon Maryland, Inc.	Landline
(240) 289	Temple Hills	Cavalier Telephone Mid-atlantic, Llc - Md	Landline
(240) 254	Hughesville	Teleport Communications America, Llc - Dc	Landline
(240) 766	Temple Hills	Xo Maryland, Llc	Landline
(240) 510	Lothian	Xo Maryland, Llc	Landline
(240) 487	Mount Rainier	Us Lec of Maryland, Inc.	Landline
(240) 419	Waldorf	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 801	Silver Spring		Wireless
(240) 494	Silver Spring	Cavalier East Llc - Md	Landline
(240) 261	Crofton	Global Naps South, Inc. - Md	Landline
(240) 516	Silver Spring	Us Lec of Maryland, Inc.	Landline
(240) 833	Silver Spring	Xo Maryland, Llc	Landline
(240) 213	Waldorf	Peerless Network of Illinois, Llc - Il	Landline
(240) 566	Frederick	Verizon Maryland, Inc.	Landline
(240) 368	Rockville	Global Naps South, Inc. - Md	Landline
(240) 686	Gaithersburg	Verizon Maryland, Inc.	Landline
(240) 964	Cumberland	Verizon Maryland, Inc.	Landline
(240) 442	Oakland	Verizon Maryland, Inc.	Landline
(240) 826	Rockville	Verizon Maryland, Inc.	Landline
(240) 520	Hagerstown	Sprint Spectrum L.p. - Md	Wireless
(240) 463	Silver Spring	New Cingular Wireless Pcs, Llc - Dc	Wireless
(240) 296	Mount Rainier	Cavalier Telephone Mid-atlantic, Llc - Md	Landline
(240) 694	Bethesda	Verizon Maryland, Inc.	Landline
(240) 417	Suitland	Sprint Spectrum L.p. - Md	Wireless
(240) 371	Silver Spring	Global Naps South, Inc. - Md	Landline
(240) 843	Hyattsville	Allegiance Telecom, Inc. - Md	Landline
(240) 681	Brandywine	Atx Telecommunications Services, Ltd	Landline
(240) 568	Jessup	Verizon Maryland, Inc.	Landline
(240) 304	District Heights	Sprint Spectrum L.p. - Md	Wireless
(240) 844	Ridge	Xo Maryland, Llc	Landline
(240) 362	Rawlings	Verizon Maryland, Inc.	Landline
(240) 604	Hyattsville	Sprint Spectrum L.p.	Wireless
(240) 667	Mount Rainier	Global Crossing Local Services, Inc.-md	Landline
(240) 823	Brandywine	Xo Maryland, Llc	Landline
(240) 842	Lanham	Allegiance Telecom, Inc. - Md	Landline
(240) 629	Frederick	Verizon Maryland, Inc.	Landline
(240) 224	Fort Washington	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 585	Waldorf	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 812	Poolesville	Global Crossing Local Services, Inc.-md	Landline
(240) 333	Bethesda	Cavalier East Llc - Md	Landline
(240) 293	Rockville	Starpower Communications, Llc - Md	Landline
(240) 518	Waldorf	Sprint Spectrum L.p.	Wireless
(240) 421	Rockville	Omnipoint Communications Cap Operations, Llc	Wireless
(240) 341	Frederick	Mci Worldcom Communications, Inc. - Md	Landline
(240) 988	Laurel	Sprint Spectrum L.p.	Wireless
(240) 376	Hughesville	Global Naps South, Inc. - Md	Landline
(240) 481	Silver Spring	Omnipoint Communications Cap Operations, Llc	Wireless
(240) 255	Poolesville	Global Naps South, Inc. - Md	Landline
(240) 275	Grantsville	Core Communications, Inc. - Md	Landline
(240) 662	Takoma Park	Verizon Maryland, Inc.	Landline
(240) 387	Silver Spring	Cavalier East Llc - Md	Landline
(240) 883	Ashton	Broadwing Communications. Llc - Md	Landline
(240) 638	Silver Spring	Broadwing Communications. Llc - Md	Landline
(240) 412	Port Tobacco	Sprint Spectrum L.p.	Wireless
(240) 650	Glen Echo	Infotelecom, Llc - Dc	Landline
(240) 784	Myersville	Omnipoint Communications Cap Operations, Llc	Wireless
(240) 327	Gaithersburg	Core Communications, Inc. - Md	Landline
(240) 252	Gaithersburg	Level 3 Communications, Llc - Md	Landline
(240) 276	Rockville	Verizon Maryland, Inc.	Landline
(240) 233	Faulkner	Teleport Communications America, Llc - Dc	Landline
(240) 473	Greenbelt	Cavalier Telephone Mid-atlantic, Llc - Md	Landline
(240) 350	Silver Spring	Sprint Spectrum L.p.	Wireless
(240) 899	Bethesda	Omnipoint Communications Cap Operations, Llc	Wireless
(240) 778	Rockville	Xo Maryland, Llc	Landline
(240) 929	Lanham	Cavalier East Llc - Md	Landline
(240) 505	Silver Spring	Omnipoint Communications Cap Operations, Llc	Wireless
(240) 357	Frederick	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 725	California	Verizon Maryland, Inc.	Landline
(240) 317	Great Mills	Starpower Communications, Llc - Md	Landline
(240) 399	Rockville	Xo Maryland, Llc	Landline
(240) 500	Hagerstown	Us Lec of Maryland, Inc.	Landline
(240) 308	Monrovia	New Cingular Wireless Pcs, Llc - Dc	Wireless
(240) 802		365 Wireless, Llc
(240) 429	Silver Spring	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 267	Lothian		Landline
(240) 618	Laurel	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 543	Bethesda	Sprint Spectrum L.p.	Wireless
(240) 556	Lanham	Paetec Communications, Inc. - Md	Landline
(240) 319	Columbia	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 567	Rockville	Verizon Maryland, Inc.	Landline
(240) 619	Andrews Air Force Base	Mci Worldcom Communications, Inc. - Md	Landline
(240) 329	Hagerstown	Level 3 Communications, Llc - Md	Landline
(240) 342	Ashton	Starpower Communications, Llc - Md	Landline
(240) 243	Gaithersburg	Allegiance Telecom, Inc. - Md	Landline
(240) 414	Fort Washington	Global Naps South, Inc. - Md	Landline
(240) 325	Monrovia	Core Communications, Inc. - Md	Landline
(240) 351	Frederick	Sprint Spectrum L.p.	Wireless
(240) 353	Laurel	Sprint Spectrum L.p.	Wireless
(240) 466	Mechanicsville	Global Naps South, Inc. - Md	Landline
(240) 526	Leonardtown	Global Naps South, Inc. - Md	Landline
(240) 565	Laurel	Omnipoint Communications Cap Operations, Llc	Wireless
(240) 400	Chevy Chase	Sprint Spectrum L.p.	Wireless
(240) 920	Cumberland	Level 3 Communications, Llc - Md	Landline
(240) 551	Rockville	Leap Wireless Intl, Inc. Dba Cricket Comm, Inc.	Wireless
(240) 356	Frederick	Level 3 Communications, Llc - Md	Landline
(240) 898	Hyattsville	Broadwing Communications. Llc - Md	Landline
(240) 344	Frederick	New Cingular Wireless Pcs, Llc - Dc	Wireless
(240) 534
(240) 804	Faulkner	Xo Maryland, Llc	Landline
(240) 424	Brentwood	Sprint Spectrum L.p.	Wireless
(240) 332	Faulkner	Global Naps South, Inc. - Md	Landline
(240) 608	Frederick	365 Wireless, Llc	Wireless
(240) 561	Leonardtown	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 246	Gaithersburg	Starpower Communications, Llc - Md	Landline
(240) 218	Nanjemoy	Peerless Network of Illinois, Llc - Il	Landline
(240) 432	Laurel	Sprint Spectrum L.p.	Wireless
(240) 244	Andrews Air Force Base	Starpower Communications, Llc - Md	Landline
(240) 425	Bethesda	Dslnet Communications Va, Inc. - Md	Landline
(240) 660
(240) 676	Silver Spring	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 420	Hagerstown	Verizon Maryland, Inc.	Landline
(240) 222	Waldorf	Cavalier Telephone Mid-atlantic, Llc - Md	Landline
(240) 295	Laurel	Cavalier Telephone Mid-atlantic, Llc - Md	Landline
(240) 544	Lanham	Us Lec of Maryland, Inc.	Landline
(240) 714	Washington
(240) 404	Gaithersburg	Xo Maryland, Llc	Landline
(240) 385	Myersville	Verizon Maryland, Inc.	Landline
(240) 528	Hughesville	Broadwing Communications. Llc - Md	Landline
(240) 857	Andrews Air Force Base	Tw Telecom of Maryland Llc - Md	Landline
(240) 599	Rockville	Broadwing Communications. Llc - Md	Landline
(240) 251	Cascade	Core Communications, Inc. - Md	Landline
(240) 445	Chevy Chase	Sprint Spectrum L.p.	Wireless
(240) 825	Rockville
(240) 583	Laurel	Verizon Maryland, Inc.	Landline
(240) 343	Hancock	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 230	Hughesville	Global Crossing Local Services, Inc.-md	Landline
(240) 322	Westernport	Core Communications, Inc. - Md	Landline
(240) 338	Silver Spring	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 397	Frederick	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 478	Silver Spring	New Cingular Wireless Pcs, Llc - Dc	Wireless
(240) 668	Monrovia	Starpower Communications, Llc - Md	Landline
(240) 320	Waldorf	Cavalier East Llc - Md	Landline
(240) 306	Gaithersburg	Allegiance Telecom, Inc. - Md	Landline
(240) 348	Andrews Air Force Base	Level 3 Communications, Llc - Md	Landline
(240) 309	Silver Spring	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 310	Hagerstown	Uscoc of Cumberland, Inc. Dba United States Cel Md	Wireless
(240) 530	Charles
(240) 354	Bethesda	Sprint Spectrum L.p.	Wireless
(240) 396	Bethesda	Global Crossing Local Services, Inc.-md	Landline
(240) 482	Bethesda	Us Lec of Maryland, Inc.	Landline
(240) 620	Rockville	Mci Worldcom Communications, Inc. - Md	Landline
(240) 418	Laurel	Sprint Spectrum L.p.	Wireless
(240) 288	Thurmont	Comcast Phone of Northern Maryland, Inc. - Md	Landline
(240) 678	Silver Spring	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 527	Hagerstown	Verizon Maryland, Inc.	Landline
(240) 893	Silver Spring	New Cingular Wireless Pcs, Llc - Dc	Wireless
(240) 435	Waldorf	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 912	Gaithersburg	Us Lec of Maryland, Inc.	Landline
(240) 469	Hagerstown	Sprint Spectrum L.p. - Md	Wireless
(240) 630	Brentwood	Bandwidth.com Clec, Llc - Md	Landline
(240) 307	Emmitsburg	At&t Local	Landline
(240) 986	Nanjemoy	Xo Maryland, Llc	Landline
(240) 752	Chevy Chase	Telcove Operations, Inc. - Md	Landline
(240) 786	Laurel	Broadwing Communications. Llc - Md	Landline
(240) 448	Waldorf	Sprint Spectrum L.p.	Wireless
(240) 468	Brentwood	Sprint Spectrum L.p.	Wireless
(240) 601	Bethesda	Sprint Spectrum L.p.	Wireless
(240) 426	Bethesda	Sprint Spectrum L.p.	Wireless
(240) 600	Frederick	Sprint Spectrum L.p.	Wireless
(240) 247	Silver Spring	Allegiance Telecom, Inc. - Md	Landline
(240) 699	Frederick	Verizon Maryland, Inc.	Landline
(240) 271	Silver Spring	New Cingular Wireless Pcs, Llc - Dc	Wireless
(240) 772	Frederick	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 713	Laurel	Peerless Network of Maryland, Llc	Landline
(240) 407	Andrews Air Force Base	Global Crossing Local Services, Inc.-md	Landline
(240) 538	Leonardtown	Xo Maryland, Llc	Landline
(240) 402	Greenbelt	Mci Worldcom Communications, Inc. - Md	Landline
(240) 513	Hagerstown	Sprint Spectrum L.p. - Md	Wireless
(240) 782	Monrovia	Global Crossing Local Services, Inc.-md	Landline
(240) 456	Columbia	Verizon Maryland, Inc.	Landline
(240) 217	Hagerstown	Omnipoint Communications Cap Operations, Llc	Wireless
(240) 723	Silver Spring	Cellco Partnership Dba Verizon Wireless - Md	Landline
(240) 245	Lanham	Starpower Communications, Llc - Md	Landline
(240) 617
(240) 331	Silver Spring	Global Naps South, Inc. - Md	Landline
(240) 386	Rockville	Verizon Maryland, Inc.	Landline
(240) 641	Rockville		Landline
(240) 743	Bethesda	New Cingular Wireless Pcs, Llc - Dc	Wireless
(240) 204	Chevy Chase	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 340	Chevy Chase	Sprint Spectrum L.p.	Wireless
(240) 446	Frederick	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 352	Port Tobacco	Global Naps South, Inc. - Md	Landline
(240) 405	Frederick	Us Lec of Maryland, Inc.	Landline
(240) 491	Silver Spring	Global Crossing Local Services, Inc.-md	Wireless
(240) 507	Glen Echo	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 645	Silver Spring	Xo Maryland, Llc	Landline
(240) 457	Frederick	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 330	Glen Echo	Sprint Spectrum L.p.	Wireless
(240) 480	Chevy Chase	Sprint Spectrum L.p.	Wireless
(240) 716	Frederick
(240) 535	Prince Frederick	New Cingular Wireless Pcs, Llc - Dc	Wireless
(240) 406	Rockville	Leap Wireless Intl, Inc. Dba Cricket Comm, Inc.	Wireless
(240) 767	District Heights	Cavalier East Llc - Md	Landline
(240) 793	Gaithersburg	Sprint Spectrum L.p. - Md	Wireless
(240) 925	Leonardtown	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 318	Andrews Air Force Base	Verizon Maryland, Inc.	Landline
(240) 221	Rockville	Verizon Maryland, Inc.	Landline
(240) 450	Silver Spring	Cavalier Telephone Mid-atlantic, Llc - Md	Landline
(240) 422	Frederick	Omnipoint Communications Cap Operations, Llc	Wireless
(240) 270	Lanham	Cellco Partnership Dba Verizon Wireless - Md	Landline
(240) 754	Waldorf	Level 3 Communications, Llc - Md	Landline
(240) 390	Ashton	Cavalier Telephone Mid-atlantic, Llc - Md	Landline
(240) 545	Lothian	Us Lec of Maryland, Inc.	Landline
(240) 523	Bel Alton	Xo Maryland, Llc	Landline
(240) 661	Frederick
(240) 437	Ashton	Xo Maryland, Llc	Landline
(240) 595	Silver Spring	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 559	Ashton	Allegiance Telecom, Inc. - Md	Landline
(240) 394	Mount Airy	New Cingular Wireless Pcs, Llc - Dc	Wireless
(240) 965	Riverdale	Paetec Communications, Inc. - Md	Landline
(240) 203	Hagerstown	Sprint Spectrum L.p. - Md	Wireless
(240) 391	Riverdale	Global Crossing Local Services, Inc.-md	Landline
(240) 416	Waldorf	New Cingular Wireless Pcs, Llc - Dc	Wireless
(240) 459	Laurel	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 993	Indian Head	Xo Maryland, Llc	Landline
(240) 489	Poolesville	Xo Maryland, Llc	Landline
(240) 292	Kensington	Verizon Maryland, Inc.	Landline
(240) 346	Waldorf	Sprint Spectrum L.p.	Wireless
(240) 361	Gaithersburg	Cavalier Telephone Mid-atlantic, Llc - Md	Landline
(240) 485	Silver Spring	Us Lec of Maryland, Inc.	Landline
(240) 206	Lanham	Xo Maryland, Llc	Landline
(240) 643	Silver Spring	Omnipoint Communications Cap Operations, Llc	Wireless
(240) 574	Charles
(240) 517	Washington
(240) 845	Greenbelt	Xo Maryland, Llc	Landline
(240) 249	Mechanicsville	Teleport Communications America, Llc - Dc	Landline
(240) 367	Frederick	Sprint Spectrum L.p.	Wireless
(240) 475	Silver Spring	New Cingular Wireless Pcs, Llc - Dc	Wireless
(240) 864	Rockville	Cavalier East Llc - Md	Landline
(240) 287	Hancock	Core Communications, Inc. - Md	Landline
(240) 299	Waldorf	Sprint Spectrum L.p.	Wireless
(240) 335	Lanham	Cavalier Telephone Mid-atlantic, Llc - Md	Landline
(240) 208	Port Tobacco	Peerless Network of Illinois, Llc - Il	Landline
(240) 502	Silver Spring	Sprint Spectrum L.p.	Wireless
(240) 449	Gaithersburg	New Cingular Wireless Pcs, Llc - Dc	Wireless
(240) 408	Rockville	Leap Wireless Intl, Inc. Dba Cricket Comm, Inc.	Wireless
(240) 509	Gambrills	Bandwidth.com Clec, Llc - Md	Landline
(240) 499	Rockville	Us Lec of Maryland, Inc.	Landline
(240) 283	Silver Spring	Paetec Communications, Inc. - Md	Landline
(240) 349	Port Tobacco	Global Crossing Local Services, Inc.-md	Landline
(240) 409	Frederick	New Cingular Wireless Pcs, Llc - Dc	Wireless
(240) 593	Laurel	Omnipoint Communications Cap Operations, Llc	Wireless
(240) 220	Poolesville	Global Naps South, Inc. - Md	Landline
(240) 250	Brandywine	Global Naps South, Inc. - Md	Landline
(240) 548	Lanham	Allegiance Telecom, Inc. - Md	Landline
(240) 216	Waldorf	Sprint Spectrum L.p.	Wireless
(240) 428	Rockville	Bandwidth.com Clec, Llc - Md	Landline
(240) 370	Chevy Chase	Sprint Spectrum L.p.	Wireless
(240) 612	Brentwood	Tw Telecom of Maryland Llc - Md	Landline
(240) 642	Rockville	Tidalwave Telephone Inc.	Landline
(240) 229	Waldorf	Broadwing Communications. Llc - Md	Landline
(240) 291	Hagerstown	New Cingular Wireless Pcs, Llc - Dc	Wireless
(240) 627	Silver Spring	Global Crossing Local Services, Inc.-md	Landline
(240) 316	Bethesda	Sprint Spectrum L.p.	Wireless
(240) 640	Waldorf	Leap Wireless Intl, Inc. Dba Cricket Comm, Inc.	Wireless
(240) 558	Rockville	Cavalier Telephone Mid-atlantic, Llc - Md	Landline
(240) 381	Upper Marlboro	New Cingular Wireless Pcs, Llc - Dc	Wireless
(240) 603	Laurel	Sprint Spectrum L.p.	Wireless
(240) 279	Waldorf	Core Communications, Inc. - Md	Landline
(240) 452	Hagerstown	Lumos Networks Inc. - Va	Landline
(240) 355	Laurel	Sprint Spectrum L.p.	Wireless
(240) 626	Frederick	Sprint Spectrum L.p.	Wireless
(240) 701	Silver Spring	Leap Wireless Intl, Inc. Dba Cricket Comm, Inc.	Wireless
(240) 476	Silver Spring	Omnipoint Communications Cap Operations, Llc	Wireless
(240) 257	Nanjemoy	Teleport Communications America, Llc - Dc	Landline
(240) 519	Chevy Chase	Sprint Spectrum L.p.	Wireless
(240) 269	Andrews Air Force Base	Global Naps South, Inc. - Md	Landline
(240) 651	Frederick	Halo Wireless Services, Inc.	Wireless
(240) 256	Leonardtown	Teleport Communications America, Llc - Dc	Landline
(240) 282	Mechanicsville	Global Naps South, Inc. - Md	Landline
(240) 461	Silver Spring	New Cingular Wireless Pcs, Llc - Dc	Wireless
(240) 813	Gaithersburg	Atx Telecommunications Services, Ltd	Landline
(240) 393	Silver Spring	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 846	Andrews Air Force Base	Xo Maryland, Llc	Landline
(240) 821	Silver Spring	Lightwave Communications, Llc - Md	Landline
(240) 364	Gaithersburg	Cavalier East Llc - Md	Landline
(240) 498	Laurel	Sprint Spectrum L.p.	Wireless
(240) 636
(240) 575	Frederick	Level 3 Communications, Llc - Md	Landline
(240) 670	Brentwood	Rnk, Inc.	Landline
(240) 731	Rockville	New Cingular Wireless Pcs, Llc - Dc	Wireless
(240) 201	Ridge	Peerless Network of Illinois, Llc - Il	Landline
(240) 438	Silver Spring	Sprint Spectrum L.p.	Wireless
(240) 439	Frederick	Cellco Partnership Dba Verizon Wireless - Md	Wireless
(240) 614
(240) 553	Riverdale	Allegiance Telecom, Inc. - Md	Landline
(240) 704	Brentwood	Leap Wireless Intl, Inc. Dba Cricket Comm, Inc.	Wireless
(240) 705	Bethesda	Leap Wireless Intl, Inc. Dba Cricket Comm, Inc.	Wireless
(240) 300	Waldorf	Cellco Partnership Dba Verizon Wireless - Md	Wireless