Area Code |
Prefix |
Zip Count |
ZIP Freq |
Type |
Company |
Rate Center |
240 |
283 |
48841 |
-1 |
LANDLINE |
PAETEC COMMUNICATIONS, INC. - MD |
WSNGTNZN11 |
240 |
292 |
48841 |
-1 |
LANDLINE |
VERIZON MARYLAND, INC. |
WSNGTNZN11 |
240 |
293 |
48841 |
-2 |
LANDLINE |
STARPOWER COMMUNICATIONS, LLC - MD |
WSNGTNZN12 |
240 |
309 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
LEONARDTN |
240 |
338 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
240 |
363 |
48841 |
-1 |
LANDLINE |
ONVOY, LLC - MD |
WSNGTNZN11 |
240 |
371 |
48841 |
-2 |
LANDLINE |
PEERLESS NETWORK OF MARYLAND, LLC |
WSNGTNZN12 |
240 |
381 |
48841 |
-2 |
WIRELESS |
NEW CINGULAR WIRELESS PCS, LLC - DC |
WSHNGTNZN3 |
240 |
423 |
48841 |
-2 |
WIRELESS |
OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
WSHNGTNZN3 |
240 |
429 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
240 |
430 |
48841 |
-1 |
LANDLINE |
CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
WSNGTNZN11 |
240 |
433 |
48841 |
-2 |
LANDLINE |
CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
WSNGTNZN12 |
240 |
438 |
48841 |
-2 |
WIRELESS |
SPRINT SPECTRUM, L.P. |
WSHNGTNZN3 |
240 |
450 |
48841 |
-2 |
LANDLINE |
CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
WSHNGTNZN3 |
240 |
460 |
48841 |
-2 |
WIRELESS |
NEW CINGULAR WIRELESS PCS, LLC - DC |
WSHNGTNZN3 |
240 |
461 |
48841 |
-2 |
WIRELESS |
NEW CINGULAR WIRELESS PCS, LLC - DC |
WSHNGTNZN3 |
240 |
463 |
48841 |
-2 |
WIRELESS |
NEW CINGULAR WIRELESS PCS, LLC - DC |
WSHNGTNZN3 |
240 |
471 |
48841 |
-2 |
LANDLINE |
GLOBAL CROSSING LOCAL SERVICES, INC. - MD |
WSNGTNZN12 |
240 |
472 |
48841 |
-2 |
WIRELESS |
NEW CINGULAR WIRELESS PCS, LLC - DC |
WSHNGTNZN3 |
240 |
475 |
48841 |
-2 |
WIRELESS |
NEW CINGULAR WIRELESS PCS, LLC - DC |
WSHNGTNZN3 |
240 |
476 |
48841 |
-2 |
WIRELESS |
OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
WSHNGTNZN3 |
240 |
481 |
48841 |
-2 |
WIRELESS |
OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
WSHNGTNZN3 |
240 |
491 |
48841 |
-2 |
LANDLINE |
GLOBAL CROSSING LOCAL SERVICES, INC. - MD |
WSHNGTNZN3 |
240 |
501 |
48841 |
-2 |
WIRELESS |
SPRINT SPECTRUM, L.P. |
WSHNGTNZN3 |
240 |
502 |
48841 |
-2 |
WIRELESS |
SPRINT SPECTRUM, L.P. |
WSHNGTNZN3 |
240 |
504 |
48841 |
-2 |
WIRELESS |
SPRINT SPECTRUM, L.P. |
WSHNGTNZN3 |
240 |
505 |
48841 |
-2 |
WIRELESS |
OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
WSHNGTNZN3 |
240 |
516 |
48841 |
-2 |
LANDLINE |
US LEC OF MARYLAND, INC. |
WSNGTNZN12 |
240 |
531 |
48841 |
-2 |
LANDLINE |
TELNYX LLC |
WSHNGTNZN3 |
240 |
535 |
48841 |
-2 |
WIRELESS |
NEW CINGULAR WIRELESS PCS, LLC - DC |
WSHNGTNZN3 |
240 |
558 |
48841 |
-1 |
LANDLINE |
CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD |
WSNGTNZN11 |
240 |
560 |
48841 |
-2 |
LANDLINE |
XO MARYLAND, LLC |
WSNGTNZN12 |
240 |
621 |
48841 |
-1 |
LANDLINE |
BANDWIDTH.COM CLEC, LLC - MD |
WSNGTNZN11 |
240 |
627 |
48841 |
-1 |
LANDLINE |
GLOBAL CROSSING LOCAL SERVICES, INC. - MD |
WSNGTNZN11 |
240 |
641 |
48841 |
-2 |
LANDLINE |
PEERLESS NETWORK OF MARYLAND, LLC |
WSHNGTNZN3 |
240 |
643 |
48841 |
-2 |
WIRELESS |
OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
WSHNGTNZN3 |
240 |
670 |
48841 |
-2 |
LANDLINE |
LOCAL ACCESS LLC - MD |
WSHNGTNZN3 |
240 |
676 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
240 |
678 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
240 |
687 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
240 |
688 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
240 |
701 |
48841 |
-2 |
WIRELESS |
NEW CINGULAR WIRELESS PCS, LLC - DC |
WSHNGTNZN3 |
240 |
723 |
48841 |
-2 |
LANDLINE |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
240 |
821 |
48841 |
-2 |
LANDLINE |
LIGHTWAVE COMMUNICATIONS, LLC - MD |
WSHNGTNZN3 |
240 |
833 |
48841 |
-1 |
LANDLINE |
XO MARYLAND, LLC |
WSNGTNZN11 |
240 |
839 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
240 |
847 |
48841 |
-2 |
LANDLINE |
ONVOY, LLC - MD |
WSHNGTNZN3 |
240 |
868 |
48841 |
-2 |
LANDLINE |
CAVALIER EAST, LLC - MD |
WSNGTNZN12 |
240 |
880 |
48841 |
-1 |
LANDLINE |
LEVEL 3 COMMUNICATIONS, LLC - MD |
WSNGTNZN11 |
240 |
893 |
48841 |
-2 |
WIRELESS |
NEW CINGULAR WIRELESS PCS, LLC - DC |
WSHNGTNZN3 |
240 |
970 |
48841 |
-2 |
LANDLINE |
ONVOY, LLC - MD |
WSNGTNZN12 |
240 |
973 |
48841 |
-2 |
WIRELESS |
|
|
240 |
997 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
301 |
233 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
301 |
273 |
48841 |
-2 |
LANDLINE |
MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
WSHNGTNZN3 |
301 |
287 |
48841 |
-1 |
LANDLINE |
MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
WSNGTNZN11 |
301 |
288 |
48841 |
-2 |
LANDLINE |
MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
WSNGTNZN12 |
301 |
321 |
48841 |
-1 |
LANDLINE |
ONVOY, LLC - MD |
WSNGTNZN11 |
301 |
325 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
301 |
326 |
48841 |
-2 |
WIRELESS |
OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
WSHNGTNZN3 |
301 |
332 |
48841 |
-2 |
WIRELESS |
NEW CINGULAR WIRELESS PCS, LLC - DC |
WSHNGTNZN3 |
301 |
346 |
48841 |
-2 |
WIRELESS |
NEW CINGULAR WIRELESS PCS, LLC - DC |
WSHNGTNZN3 |
301 |
348 |
48841 |
-1 |
LANDLINE |
MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
WSNGTNZN11 |
301 |
351 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
301 |
367 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
301 |
448 |
48841 |
-2 |
LANDLINE |
COMCAST IP PHONE, LLC |
WSHNGTNZN3 |
301 |
452 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
301 |
466 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
301 |
467 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
301 |
502 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
301 |
509 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
301 |
512 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
301 |
518 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
301 |
520 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
301 |
526 |
48841 |
-2 |
WIRELESS |
NEW CINGULAR WIRELESS PCS, LLC - DC |
WSHNGTNZN3 |
301 |
551 |
48841 |
-1 |
LANDLINE |
BALTIMORE-WASHINGTON TELEPHONE (BWT) |
WSHNGTNZN3 |
301 |
557 |
48841 |
-2 |
LANDLINE |
LEVEL 3 COMMUNICATIONS, LLC - MD |
WSHNGTNZN3 |
301 |
561 |
48841 |
-2 |
LANDLINE |
BALTIMORE-WASHINGTON TELEPHONE (BWT) |
WSHNGTNZN3 |
301 |
576 |
48841 |
-2 |
LANDLINE |
PAETEC COMMUNICATIONS, INC. - MD |
WSHNGTNZN3 |
301 |
580 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
301 |
584 |
48841 |
-2 |
LANDLINE |
BALTIMORE-WASHINGTON TELEPHONE (BWT) |
WSNGTNZN12 |
301 |
592 |
48841 |
-1 |
LANDLINE |
VERIZON MARYLAND, INC. |
WSHNGTNZN3 |
301 |
593 |
48841 |
-1 |
LANDLINE |
VERIZON MARYLAND, INC. |
WSHNGTNZN3 |
301 |
602 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
301 |
603 |
48841 |
-1 |
LANDLINE |
VERIZON MARYLAND, INC. |
WSNGTNZN11 |
301 |
641 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
301 |
649 |
48841 |
-1 |
LANDLINE |
VERIZON MARYLAND, INC. |
WSNGTNZN11 |
301 |
651 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
301 |
675 |
48841 |
-2 |
WIRELESS |
OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
WSHNGTNZN3 |
301 |
679 |
48841 |
-2 |
LANDLINE |
TELEPORT COMMUNICATIONS AMERICA, LLC - DC |
WSNGTNZN12 |
301 |
681 |
48841 |
-1 |
LANDLINE |
VERIZON MARYLAND, INC. |
WSHNGTNZN3 |
301 |
704 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
301 |
706 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
301 |
717 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
301 |
728 |
48841 |
-2 |
WIRELESS |
OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
WSHNGTNZN3 |
301 |
755 |
48841 |
-2 |
LANDLINE |
MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
WSHNGTNZN3 |
301 |
758 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
301 |
761 |
48841 |
-1 |
LANDLINE |
LEVEL 3 COMMUNICATIONS, LLC - MD |
WSNGTNZN11 |
301 |
775 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
301 |
785 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
301 |
787 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
301 |
792 |
48841 |
-2 |
WIRELESS |
OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
WSHNGTNZN3 |
301 |
793 |
48841 |
-2 |
WIRELESS |
OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC |
WSHNGTNZN3 |
301 |
801 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
301 |
802 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
301 |
807 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
301 |
822 |
48841 |
-1 |
LANDLINE |
MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
WSNGTNZN11 |
301 |
830 |
48841 |
-2 |
LANDLINE |
TELEPORT COMMUNICATIONS AMERICA, LLC - MD |
WSHNGTNZN3 |
301 |
847 |
48841 |
-2 |
LANDLINE |
VERIZON MARYLAND, INC. |
WSNGTNZN12 |
301 |
873 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
301 |
905 |
48841 |
-1 |
LANDLINE |
VERIZON MARYLAND, INC. |
WSHNGTNZN3 |
301 |
908 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
301 |
920 |
48841 |
-2 |
LANDLINE |
STARPOWER COMMUNICATIONS, LLC - MD |
WSHNGTNZN3 |
301 |
922 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
301 |
928 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
301 |
929 |
48841 |
-1 |
LANDLINE |
VERIZON MARYLAND, INC. |
WSNGTNZN11 |
301 |
933 |
48841 |
-1 |
LANDLINE |
VERIZON MARYLAND, INC. |
WSNGTNZN11 |
301 |
938 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
301 |
942 |
48841 |
-1 |
LANDLINE |
VERIZON MARYLAND, INC. |
WSNGTNZN11 |
301 |
943 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |
301 |
946 |
48841 |
-1 |
LANDLINE |
VERIZON MARYLAND, INC. |
WSNGTNZN11 |
301 |
949 |
48841 |
-1 |
LANDLINE |
VERIZON MARYLAND, INC. |
WSNGTNZN11 |
301 |
960 |
48841 |
-2 |
LANDLINE |
MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
WSHNGTNZN3 |
301 |
962 |
48841 |
-1 |
LANDLINE |
VERIZON MARYLAND, INC. |
WSNGTNZN11 |
301 |
980 |
48841 |
-2 |
WIRELESS |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
WSHNGTNZN3 |