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 60 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
202-520 6   5562 METROPCS, INC. 236   2008-01-07   
202-520 7   5562 METROPCS, INC. 236   2008-01-07   
202-520 8   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2008-01-07   
202-520 9   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2008-01-07   
202-521 A MCLNVA23DS4  6117 LEVEL 3 COMMUNICATIONS, LLC - DC 236      
202-522 A WASHDCMORP0  9211 VERIZON WASHINGTON DC, INC. 236      
202-523 A WASHDCMODS1  9211 VERIZON WASHINGTON DC, INC. 236      
202-524 A   829J PAETEC ITEL, LLC 236   2025-04-02   
202-524 0   074F BANDWIDTH.COM CLEC, LLC - DC 236   2012-09-07   
202-524 1   074F BANDWIDTH.COM CLEC, LLC - DC 236   2010-10-15   
202-524 2   074F BANDWIDTH.COM CLEC, LLC - DC 236   2010-10-15   
202-524 3   074F BANDWIDTH.COM CLEC, LLC - DC 236   2010-10-15   
202-524 4   829J PAETEC ITEL, LLC 236   2010-05-13   
202-524 5   829J PAETEC ITEL, LLC 236   2010-05-13   
202-524 6   829J PAETEC ITEL, LLC 236   2010-05-13   
202-524 7   829J PAETEC ITEL, LLC 236   2010-10-06   
202-524 8   6117 LEVEL 3 COMMUNICATIONS, LLC - DC 236   2010-11-04   
202-524 9   6117 LEVEL 3 COMMUNICATIONS, LLC - DC 236   2010-11-04   
202-525 A WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236      
202-525 0   6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2009-02-07   
202-525 1   318J COMCAST IP PHONE, LLC 236   2009-03-27   
202-525 2   318J COMCAST IP PHONE, LLC 236   2009-03-27   
202-525 3   318J COMCAST IP PHONE, LLC 236   2009-03-27   
202-525 4   318J COMCAST IP PHONE, LLC 236   2009-03-27   
202-525 5   318J COMCAST IP PHONE, LLC 236   2009-03-27   
202-525 6   074F BANDWIDTH.COM CLEC, LLC - DC 236   2009-04-19   
202-525 7   074F BANDWIDTH.COM CLEC, LLC - DC 236   2010-03-05   
202-525 8   6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2009-03-19   
202-525 9   6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2009-03-19   
202-526 A WASHDCBKRP0  9211 VERIZON WASHINGTON DC, INC. 236      
202-527 A WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236      
202-527 0   6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2007-08-09   
202-527 1   6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2007-08-09   
202-527 2   6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2007-08-09   
202-527 3   6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2007-08-09   
202-527 4   6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2007-08-09   
202-527 5   6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2007-08-09   
202-527 6   829J PAETEC ITEL, LLC 236   2007-09-23   
202-527 7   829J PAETEC ITEL, LLC 236   2007-09-23   
202-527 8   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2007-10-09   
202-527 9   6117 LEVEL 3 COMMUNICATIONS, LLC - DC 236   2007-10-09   
202-528 A BTVLMD12CMA  5562 METROPCS, INC. 236      
202-528 0   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
202-528 1   5562 METROPCS, INC. 236      
202-528 2   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
202-528 3   5562 METROPCS, INC. 236      
202-528 4   5562 METROPCS, INC. 236      
202-528 5   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
202-528 6   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
202-528 7   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
202-528 8   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
202-528 9   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
202-529 A WASHDCBKRP0  9211 VERIZON WASHINGTON DC, INC. 236      
202-530 A WASHDCMTDS0  9211 VERIZON WASHINGTON DC, INC. 236      
202-531 A BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
202-532 A WASHDCDNDS1  9211 VERIZON WASHINGTON DC, INC. 236      
202-532 0   9211 VERIZON WASHINGTON DC, INC. 236      
202-532 1   9211 VERIZON WASHINGTON DC, INC. 236      
202-532 2   9211 VERIZON WASHINGTON DC, INC. 236      
202-532 3   6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236      
202-532 4   9211 VERIZON WASHINGTON DC, INC. 236      
202-532 5   6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236      
202-532 6   9211 VERIZON WASHINGTON DC, INC. 236      
202-532 7   9211 VERIZON WASHINGTON DC, INC. 236      
202-532 8   9211 VERIZON WASHINGTON DC, INC. 236      
202-532 9   9211 VERIZON WASHINGTON DC, INC. 236      
202-533 A WASHDCMTDS0  9211 VERIZON WASHINGTON DC, INC. 236      
202-534 A BTVLMD12CMA  5562 METROPCS, INC. 236      
202-534 0   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2009-02-16   
202-534 1   829J PAETEC ITEL, LLC 236   2008-12-10   
202-534 2   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2009-02-16   
202-534 3   829J PAETEC ITEL, LLC 236   2009-08-14   
202-534 4   829J PAETEC ITEL, LLC 236   2009-08-14   
202-534 5   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2008-11-29   
202-534 6   5562 METROPCS, INC. 236   2008-11-29   
202-534 7   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2008-11-29   
202-534 8   5562 METROPCS, INC. 236   2008-11-29   
202-534 9   5562 METROPCS, INC. 236   2008-11-29   
202-535 A WASHDCMODS1  9211 VERIZON WASHINGTON DC, INC. 236      
202-536 A   829J PAETEC ITEL, LLC 236   2025-04-02   
202-536 0   5562 METROPCS, INC. 236   2005-10-13   
202-536 1   829J PAETEC ITEL, LLC 236   2005-07-31   
202-536 2   829J PAETEC ITEL, LLC 236   2005-09-14   
202-536 3   829J PAETEC ITEL, LLC 236   2005-09-14   
202-536 4   829J PAETEC ITEL, LLC 236   2005-09-14   
202-536 5   829J PAETEC ITEL, LLC 236   2005-09-14   
202-536 6   6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2005-10-09   
202-536 7   6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2005-10-09   
202-536 8   6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2005-10-09   
202-536 9   6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2005-10-09   
202-537 A WASHDCWLDS0  9211 VERIZON WASHINGTON DC, INC. 236      
202-538 A WASHDCGGDS0  9211 VERIZON WASHINGTON DC, INC. 236      
202-538 0   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2004-08-06   
202-538 1   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2004-08-06   
202-538 2   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2004-08-06   
202-538 3   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2004-08-06   
202-538 4   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2004-08-06   
202-538 5   6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2006-02-06   
202-538 6   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2004-02-16   
202-538 7   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2004-02-16   

<< 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 60 >>

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.