Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Washington Zone 1, DC

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
202-465 7 WASHDCSWXCY  4989 PAETEC COMMUNICATIONS, INC. - DC 236      
202-465 8 WASHDCSWXCY  4989 PAETEC COMMUNICATIONS, INC. - DC 236      
202-465 9 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
202-466 A WASHDCMTDS0  9211 VERIZON WASHINGTON DC, INC. 236      
202-467 A WASHDCMTDS0  9211 VERIZON WASHINGTON DC, INC. 236      
202-468 A BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
202-469 A WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
202-469 0 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
202-469 1 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
202-469 2 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
202-469 3 WASHDCSWXCY  4989 PAETEC COMMUNICATIONS, INC. - DC 236      
202-469 4 WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
202-469 5 WASHDCSWXCY  4989 PAETEC COMMUNICATIONS, INC. - DC 236      
202-469 6 WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
202-469 7 WASHDCMTX7X  2695 CTC COMMUNICATIONS CORP. - DC 236      
202-469 8 HRNDVACKBMD  5966 LIGHTWAVE COMMUNICATIONS, LLC - MD 236      
202-469 9 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
202-470 A WASHDCSWPS0  9211 VERIZON WASHINGTON DC, INC. 236      
202-470 0 MCLNVA23DS4  6117 LEVEL 3 COMMUNICATIONS, LLC - DC 236      
202-470 1 MCLNVA23DS4  6117 LEVEL 3 COMMUNICATIONS, LLC - DC 236      
202-470 2 MCLNVA23DS4  6117 LEVEL 3 COMMUNICATIONS, LLC - DC 236      
202-470 3 MCLNVA23DS4  6117 LEVEL 3 COMMUNICATIONS, LLC - DC 236      
202-470 4 MCLNVA23DS4  6117 LEVEL 3 COMMUNICATIONS, LLC - DC 236      
202-470 5 MCLNVA23DS4  6117 LEVEL 3 COMMUNICATIONS, LLC - DC 236      
202-470 6 MCLNVA23DS4  6117 LEVEL 3 COMMUNICATIONS, LLC - DC 236      
202-470 7 BTVLMD127MD  5562 METROPCS, INC. 236      
202-470 8 BTVLMD127MD  5562 METROPCS, INC. 236      
202-470 9 WASHDCSWPS0  9211 VERIZON WASHINGTON DC, INC. 236      
202-471 A WASHDCGTDS0  9211 VERIZON WASHINGTON DC, INC. 236      
202-471 0 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
202-471 1 MCLNVA23DS4  6117 LEVEL 3 COMMUNICATIONS, LLC - DC 236      
202-471 2 WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
202-471 3 WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
202-471 4 WASHDCGTDS0  9211 VERIZON WASHINGTON DC, INC. 236      
202-471 5 WASHDCGTDS0  9211 VERIZON WASHINGTON DC, INC. 236      
202-471 6 WASHDCGTDS0  9211 VERIZON WASHINGTON DC, INC. 236      
202-471 7 WASHDCGTDS0  9211 VERIZON WASHINGTON DC, INC. 236      
202-471 8 WASHDCGTDS0  9211 VERIZON WASHINGTON DC, INC. 236      
202-471 9 BTVLMD127MD  5562 METROPCS, INC. 236      
202-472 A WASHDCSWDSA  9211 VERIZON WASHINGTON DC, INC. 236      
202-473 A WASHDCMORP0  9211 VERIZON WASHINGTON DC, INC. 236      
202-474 A   850D ONVOY, LLC - DC 236   2024-04-26   
202-474 0   850D ONVOY, LLC - DC 236      
202-474 1   850D ONVOY, LLC - DC 236      
202-474 2   850D ONVOY, LLC - DC 236      
202-474 3   850D ONVOY, LLC - DC 236      
202-474 4   850D ONVOY, LLC - DC 236      
202-474 5   850D ONVOY, LLC - DC 236      
202-474 6   850D ONVOY, LLC - DC 236      
202-474 7   850D ONVOY, LLC - DC 236      
202-474 8   850D ONVOY, LLC - DC 236      
202-474 9   850D ONVOY, LLC - DC 236      
202-475 A WASHDCSWDSA  9211 VERIZON WASHINGTON DC, INC. 236      
202-476 A WASHDCDPDS4  9211 VERIZON WASHINGTON DC, INC. 236      
202-476 0 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
202-476 1 WASHDCDPDS4  9211 VERIZON WASHINGTON DC, INC. 236      
202-476 2 TYCRVA03BMD  2515 US LEC OF VIRGINIA, LLC - DC 236      
202-476 3 TYCRVA03BMD  2515 US LEC OF VIRGINIA, LLC - DC 236      
202-476 4 TYCRVA03BMD  2515 US LEC OF VIRGINIA, LLC - DC 236      
202-476 5 TYCRVA03BMD  2515 US LEC OF VIRGINIA, LLC - DC 236      
202-476 6 TYCRVA03BMD  2515 US LEC OF VIRGINIA, LLC - DC 236      
202-476 7 TYCRVA03BMD  2515 US LEC OF VIRGINIA, LLC - DC 236      
202-476 8 WASHDCDPDS4  9211 VERIZON WASHINGTON DC, INC. 236      
202-476 9 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
202-477 A WASHDCMODS1  9211 VERIZON WASHINGTON DC, INC. 236      
202-478 A WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
202-479 A WASHDCSWDSA  9211 VERIZON WASHINGTON DC, INC. 236      
202-480 A WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236      
202-480 0 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236      
202-480 1 BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
202-480 2 MCLNVA23DS4  6117 LEVEL 3 COMMUNICATIONS, LLC - DC 236      
202-480 3 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236      
202-480 4 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236      
202-480 5 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236      
202-480 6 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236      
202-480 7 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236      
202-480 8 WASJDCDCDS0  4982 GLOBAL CROSSING TELEMANAGEMENT, INC. - DC 236      
202-480 9 WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236      
202-481 A WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
202-482 A WASHDCMODSS  9211 VERIZON WASHINGTON DC, INC. 236      
202-483 A WASHDCDPDS4  9211 VERIZON WASHINGTON DC, INC. 236      
202-484 A WASHDCSWDSA  9211 VERIZON WASHINGTON DC, INC. 236      
202-485 A WASHDCSWDSA  9211 VERIZON WASHINGTON DC, INC. 236      
202-486 A BTVLMD127MD  5562 METROPCS, INC. 236      
202-486 0 BTVLMD127MD  5562 METROPCS, INC. 236      
202-486 1 BTVLMD127MD  5562 METROPCS, INC. 236      
202-486 2 BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
202-486 3 BTVLMD127MD  5562 METROPCS, INC. 236      
202-486 4 BTVLMD127MD  5562 METROPCS, INC. 236      
202-486 5 BTVLMD127MD  5562 METROPCS, INC. 236      
202-486 6 BTVLMD127MD  5562 METROPCS, INC. 236      
202-486 7 BTVLMD127MD  5562 METROPCS, INC. 236      
202-486 8 BTVLMD127MD  5562 METROPCS, INC. 236      
202-486 9 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
202-487 A BTVLMD127MD  5562 METROPCS, INC. 236   2024-02-09   
202-487 0 BTVLMD127MD  5562 METROPCS, INC. 236      
202-487 1 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
202-487 2 BTVLMD127MD  5562 METROPCS, INC. 236      
202-487 3 BTVLMD127MD  5562 METROPCS, INC. 236      
202-487 4 BTVLMD127MD  5562 METROPCS, INC. 236      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 >>

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.