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
202-918 1 VINNVACB9MD  597F VOIP INNOVATIONS, LLC 236   2019-08-12   
202-918 2 VINNVACBDS0  850D ONVOY, LLC - DC 236   2019-08-16   
202-918 3 VINNVACBDS0  850D ONVOY, LLC - DC 236   2019-08-16   
202-918 4 VINNVACBDS0  850D ONVOY, LLC - DC 236   2019-08-16   
202-918 5 VINNVACBDS0  850D ONVOY, LLC - DC 236   2019-08-16   
202-918 6 VINNVACBDS0  850D ONVOY, LLC - DC 236   2019-08-16   
202-918 7 WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236   2019-09-14   
202-918 8 WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2019-08-30   
202-918 9 MCLNVA23DS4  6117 LEVEL 3 COMMUNICATIONS, LLC - DC 236   2019-08-25   
202-919 A VINNVACBDS0  850D ONVOY, LLC - DC 236      
202-919 0 BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2018-11-04   
202-919 1 BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2018-11-04   
202-919 2 WASHDCSWXCY  4989 PAETEC COMMUNICATIONS, INC. - DC 236   2018-10-30   
202-919 3 MCLNVA23DS4  6117 LEVEL 3 COMMUNICATIONS, LLC - DC 236   2018-11-08   
202-919 4 MCLNVA23DS4  6117 LEVEL 3 COMMUNICATIONS, LLC - DC 236   2018-11-08   
202-919 5 MCLNVA23DS4  6117 LEVEL 3 COMMUNICATIONS, LLC - DC 236   2018-11-08   
202-919 6 VINNVACBDS0  850D ONVOY, LLC - DC 236   2018-10-19   
202-919 7 VINNVACBDS0  850D ONVOY, LLC - DC 236   2018-10-19   
202-919 8 VINNVACBDS0  850D ONVOY, LLC - DC 236   2018-10-19   
202-919 9 WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236   2019-09-10   
202-920 A WASHDCSWNMD  321J HD CARRIER LLC 236      
202-920 0 WASHDC127MD  073H TELNYX LLC 236   2019-03-31   
202-920 1 WASHDC127MD  073H TELNYX LLC 236   2019-03-31   
202-920 2 WASHDC12DS6  275F PEERLESS NETWORK OF THE DISTRICT OF COLUMBIA, DC 236   2019-04-22   
202-920 3 WASHDC12DS6  275F PEERLESS NETWORK OF THE DISTRICT OF COLUMBIA, DC 236   2019-04-22   
202-920 4 WASHDC12DS6  275F PEERLESS NETWORK OF THE DISTRICT OF COLUMBIA, DC 236   2019-04-22   
202-920 5 WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2019-06-20   
202-920 6 MCLNVA23DS4  6117 LEVEL 3 COMMUNICATIONS, LLC - DC 236   2019-04-28   
202-920 7 MCLNVA23DS4  6117 LEVEL 3 COMMUNICATIONS, LLC - DC 236   2019-04-28   
202-920 8 OCQNVAXAVMD  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2019-08-09   
202-920 9 WASHDCSWNMD  321J HD CARRIER LLC 236   2019-03-30   
202-921 A WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
202-921 0 WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236   2019-10-02   
202-921 1 WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236   2019-10-02   
202-921 2 WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236   2019-10-02   
202-921 3 WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236   2019-10-02   
202-921 4 WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236   2019-10-02   
202-921 5 WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2019-10-02   
202-921 6 WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236   2019-10-02   
202-921 7 WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236   2019-10-02   
202-921 8 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2019-10-11   
202-921 9 WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2019-10-01   
202-922 A WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236      
202-922 0 WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236   2018-05-22   
202-922 1 WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236   2018-05-22   
202-922 2 WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236   2018-05-22   
202-922 3 WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236   2018-05-22   
202-922 4 WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236   2018-05-22   
202-922 5 WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236   2018-05-22   
202-922 6 WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236   2018-05-22   
202-922 7 WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236   2018-05-22   
202-922 8 WASHDCDP8MD  074F BANDWIDTH.COM CLEC, LLC - DC 236   2018-05-22   
202-922 9 BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2018-09-22   
202-923 A WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
202-923 0 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2019-10-11   
202-923 1 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2019-10-11   
202-923 2 WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2019-10-05   
202-923 3 WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2019-10-05   
202-923 4 WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2019-10-05   
202-923 5 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2019-10-11   
202-923 6 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2019-10-11   
202-923 7 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2019-10-11   
202-923 8 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2019-10-11   
202-923 9 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2019-10-11   
202-924 A WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236      
202-924 0 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2019-09-22   
202-924 1 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2019-09-22   
202-924 2 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2019-09-22   
202-924 3 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2019-09-22   
202-924 4 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2019-09-22   
202-924 5 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2019-09-22   
202-924 6 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2019-09-22   
202-924 7 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2019-09-22   
202-924 8 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2019-09-22   
202-924 9 WASKDCFNAMD  6402 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC 236   2019-09-22   
202-925 A BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
202-925 0 BTVLMD18GT6  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2019-10-31   
202-925 1 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2019-11-08   
202-925 2 TYCRVA03AMD  2515 US LEC OF VIRGINIA, LLC - DC 236   2019-10-31   
202-925 3 TYCRVA03AMD  2515 US LEC OF VIRGINIA, LLC - DC 236   2019-10-31   
202-925 4 MCLNVA23DS4  6117 LEVEL 3 COMMUNICATIONS, LLC - DC 236   2019-10-31   
202-925 5 MCLNVA23DS4  6117 LEVEL 3 COMMUNICATIONS, LLC - DC 236   2019-10-31   
202-925 6 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2019-10-27   
202-925 7 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2019-10-27   
202-925 8 WASHDC12DS6  275F PEERLESS NETWORK OF THE DISTRICT OF COLUMBIA, DC 236   2019-10-31   
202-925 9 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2019-11-08   
202-926 A WASHDCRKBMD  645H AIRUS, INC. - DC 236      
202-926 0 WASHDCSWCMD  812C INTRADO COMMUNICATIONS LLC 236   2019-11-30   
202-926 1 WASHDCRKBMD  645H AIRUS, INC. - DC 236   2019-11-29   
202-926 2 MCLNVA23DS4  6117 LEVEL 3 COMMUNICATIONS, LLC - DC 236   2019-12-20   
202-926 3 MCLNVA23DS4  6117 LEVEL 3 COMMUNICATIONS, LLC - DC 236   2019-12-20   
202-926 4 WASHDC12DS6  275F PEERLESS NETWORK OF THE DISTRICT OF COLUMBIA, DC 236   2019-12-28   
202-926 5 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2019-12-16   
202-926 6 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2019-12-16   
202-926 7 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2019-12-16   
202-926 8 WASHDCSWCMD  812C INTRADO COMMUNICATIONS LLC 236   2019-11-30   
202-926 9 WASHDCSWCMD  812C INTRADO COMMUNICATIONS LLC 236   2019-11-30   
202-927 A WASHDCSWDSA  9211 VERIZON WASHINGTON DC, INC. 236      
202-928 A SLSPMDSSX6X  6630 USA MOBILITY WIRELESS, INC. 236      
202-929 A BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 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: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.