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.

Herndon, VA

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
571-525 0 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2016-09-15   
571-525 1 ARTNVACY2MD  726H AIRUS, INC. - VA 236   2015-11-13   
571-525 2 ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2016-09-01   
571-525 3 HRNDVACKBMD  5978 BROADVIEW NETWORKS OF VIRGINIA, INC. - VA 236   2016-10-14   
571-525 4 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2016-12-09   
571-525 5 MCLNVA23DS4  8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2016-11-04   
571-525 6 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2016-12-09   
571-525 7 WASIDCRG7MD  508J CENTURYLINK COMMUNICATIONS, LLC 236   2016-10-14   
571-525 8 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2016-09-15   
571-525 9 ARTNVAARX8X  551G NUSO, LLC 236   2016-10-07   
571-526 A VINNVACBDS0  138E ONVOY, LLC - VA 236      
571-526 0 VINNVACBDS0  138E ONVOY, LLC - VA 236   2014-08-03   
571-526 1 VINNVACBDS0  138E ONVOY, LLC - VA 236   2014-07-31   
571-526 2 LARLMDCC5MD  7769 LEVEL 3 TELECOM OF VIRGINIA, LLC - VA 236   2013-10-10   
571-526 3 WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2013-10-08   
571-526 4 ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2013-10-13   
571-526 5   515J IP HORIZON LLC 236   2013-07-11   
571-526 6 STNGVA08AMD  4534 PAETEC COMMUNICATIONS OF VIRGINIA, LLC - VA 236   2013-06-18   
571-526 7 STNGVA08AMD  4534 PAETEC COMMUNICATIONS OF VIRGINIA, LLC - VA 236   2013-06-18   
571-526 8 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2013-08-14   
571-526 9 WASIDCRG7MD  508J CENTURYLINK COMMUNICATIONS, LLC 236   2013-10-01   
571-537 A WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
571-537 0 WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2019-12-21   
571-537 1 WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2019-12-21   
571-537 2 WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2019-12-21   
571-537 3 WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2019-12-21   
571-537 4 WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2019-12-21   
571-537 5 WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2019-12-21   
571-537 6 WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2019-12-21   
571-537 7 WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2019-12-21   
571-537 8 WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2019-12-21   
571-537 9 WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2019-12-21   
571-539 A WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
571-539 0 WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2019-12-21   
571-539 1 WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2019-12-21   
571-539 2 WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2019-12-21   
571-539 3 WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2019-12-21   
571-539 4 WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2019-12-22   
571-539 5 WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2020-09-27   
571-539 6 WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2020-09-27   
571-539 7 BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2021-02-08   
571-539 8 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2021-09-24   
571-539 9 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2020-01-15   
571-548 A WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236      
571-548 0 WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236   2022-05-22   
571-548 1 WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236   2022-05-22   
571-548 2 WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236   2022-05-22   
571-548 3 WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-09-09   
571-548 4 WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-09-09   
571-548 5 WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-05-23   
571-548 6 WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-05-23   
571-548 7 WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-09-09   
571-548 8 WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-09-09   
571-548 9 WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-09-09   
571-563 A WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236      
571-563 0 WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-10-14   
571-563 1 WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-10-14   
571-563 2 WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-10-14   
571-563 3 WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-10-14   
571-563 4 WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-10-14   
571-563 5 WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236   2022-11-18   
571-563 6 WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236   2022-11-18   
571-563 7 WASHDCDP8MD  079F BANDWIDTH.COM CLEC, LLC - VA 236   2022-11-28   
571-563 8 WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236   2023-01-05   
571-563 9 VINNVACBDS0  138E ONVOY, LLC - VA 236   2023-09-19   
571-586 A VINNVACBDS0  138E ONVOY, LLC - VA 236      
571-586 0 VINNVACBDS0  138E ONVOY, LLC - VA 236   2022-11-13   
571-586 1 VINNVACBDS0  138E ONVOY, LLC - VA 236   2022-11-13   
571-586 2 VINNVACBDS0  138E ONVOY, LLC - VA 236   2022-11-13   
571-586 3 VINNVACBDS0  138E ONVOY, LLC - VA 236   2022-11-13   
571-586 4 VINNVACBDS0  138E ONVOY, LLC - VA 236   2022-11-13   
571-586 5 VINNVACBDS0  138E ONVOY, LLC - VA 236   2022-11-13   
571-586 6 VINNVACBDS0  138E ONVOY, LLC - VA 236   2022-11-13   
571-586 7 VINNVACBDS0  138E ONVOY, LLC - VA 236   2022-11-13   
571-586 8 VINNVACBDS0  138E ONVOY, LLC - VA 236   2022-11-13   
571-586 9 VINNVACBDS0  138E ONVOY, LLC - VA 236   2022-11-13   
571-597 A BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
571-597 0 WASHDC127MD  073H TELNYX LLC 236   2023-03-03   
571-597 1 WASHDC127MD  073H TELNYX LLC 236   2023-03-03   
571-597 2 WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236   2023-04-23   
571-597 3 VINNVACBDS0  138E ONVOY, LLC - VA 236   2023-02-27   
571-597 4 VINNVACBDS0  138E ONVOY, LLC - VA 236   2023-02-27   
571-597 5 VINNVACBDS0  138E ONVOY, LLC - VA 236   2023-02-27   
571-597 6 VINNVACBDS0  138E ONVOY, LLC - VA 236   2023-02-27   
571-597 7 BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2023-10-06   
571-597 8 WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236   2023-09-13   
571-597 9 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2023-02-23   
571-599 A WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236      
571-599 0 WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236   2014-10-11   
571-599 1 BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2016-12-03   
571-599 2 FLCHVA19DS0  7189 COX VIRGINIA TELCOM, INC. - VA 236   2015-07-14   
571-599 3 LARLMDCC5MD  7769 LEVEL 3 TELECOM OF VIRGINIA, LLC - VA 236   2015-07-31   
571-599 4 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2016-12-09   
571-599 5 BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2015-07-14   
571-599 6 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2017-04-06   
571-599 7 MCLNVA23DS4  8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2014-12-19   
571-599 8 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2014-12-13   
571-599 9 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2014-12-13   
571-612 A WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236      
571-612 0 WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236   2011-08-18   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 >>

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.