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 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
202-612 7 WASHDCDPDS2  9211 VERIZON WASHINGTON DC, INC. 236      
202-612 8 WASHDCDPDS2  9211 VERIZON WASHINGTON DC, INC. 236      
202-612 9 WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
202-613 A WASHDCDPDS2  9211 VERIZON WASHINGTON DC, INC. 236      
202-614 A MCLNVA23DS4  6117 LEVEL 3 COMMUNICATIONS, LLC - DC 236      
202-615 A BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
202-615 0 BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2006-04-21   
202-615 1 BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2006-04-21   
202-615 2 BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2006-04-21   
202-615 3 BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2006-04-21   
202-615 4 BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2006-04-21   
202-615 5 BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2006-04-21   
202-615 6 BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2006-04-21   
202-615 7 BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2006-04-21   
202-615 8 BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2006-04-21   
202-615 9 BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2006-04-21   
202-616 A WASHDCDNDS1  9211 VERIZON WASHINGTON DC, INC. 236      
202-617 A WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236      
202-617 0 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2009-08-13   
202-617 1 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2009-09-05   
202-617 2   829J PAETEC ITEL, LLC 236   2009-10-04   
202-617 3   829J PAETEC ITEL, LLC 236   2009-09-17   
202-617 4 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2010-02-06   
202-617 5 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2010-02-06   
202-617 6 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2010-02-06   
202-617 7 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2010-02-06   
202-617 8 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2010-07-29   
202-617 9 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2009-11-02   
202-618 A WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236      
202-618 0 WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236   2010-04-10   
202-618 1 WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236   2010-04-10   
202-618 2 WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236   2010-04-10   
202-618 3 MCLNVA23DS4  6117 LEVEL 3 COMMUNICATIONS, LLC - DC 236   2010-06-13   
202-618 4 MCLNVA23DS4  6117 LEVEL 3 COMMUNICATIONS, LLC - DC 236   2010-06-17   
202-618 5 MCLNVA23DS4  6117 LEVEL 3 COMMUNICATIONS, LLC - DC 236   2010-06-13   
202-618 6 MCLNVA23DS4  6117 LEVEL 3 COMMUNICATIONS, LLC - DC 236   2010-06-13   
202-618 7 MCLNVA23DS4  6117 LEVEL 3 COMMUNICATIONS, LLC - DC 236   2010-06-13   
202-618 8 MCLNVA23DS4  6117 LEVEL 3 COMMUNICATIONS, LLC - DC 236   2010-06-13   
202-618 9 WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236   2010-07-03   
202-619 A WASHDCSWDSS  9211 VERIZON WASHINGTON DC, INC. 236      
202-620 A WASHDCMT8MD  6810 REDI-CALL COMMUNICATIONS CO. 236      
202-621 A   829J PAETEC ITEL, LLC 236   2025-04-02   
202-621 0 MCLNVA23DS4  6117 LEVEL 3 COMMUNICATIONS, LLC - DC 236   2008-03-13   
202-621 1   829J PAETEC ITEL, LLC 236   2008-04-10   
202-621 2   829J PAETEC ITEL, LLC 236   2008-04-10   
202-621 3 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2008-04-21   
202-621 4 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2008-04-21   
202-621 5   829J PAETEC ITEL, LLC 236   2008-03-08   
202-621 6 ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2008-04-07   
202-621 7 ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2008-04-07   

<< 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 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 >>

Last updated: Tue, 16 Jun 2026 00:09:45 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.