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

Prefixes

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