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
571-776 2 WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2019-08-31   
571-776 3 WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2019-08-31   
571-776 4 WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2019-08-31   
571-776 5 WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2021-05-21   
571-776 6 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2019-10-07   
571-776 7 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2019-10-07   
571-776 8 ARTNVAARDS2  275G PEERLESS NETWORK OF VIRGINIA, LLC - VA 236   2019-09-14   
571-776 9 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2019-08-30   
571-786 A ARTNVAARXBY  965H FRACTEL, LLC 236      
571-786 0 BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2021-10-20   
571-786 1 VINNVACBDS0  138E ONVOY, LLC - VA 236   2020-12-04   
571-786 2 VINNVACBDS0  138E ONVOY, LLC - VA 236   2020-12-04   
571-786 3 WASHDC12MMD  516J TON80 COMMUNICATIONS, LLC 236   2021-09-04   
571-786 4 OCQNVAXAVMD  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2020-12-14   
571-786 5 VINNVACBDS0  138E ONVOY, LLC - VA 236   2020-12-04   
571-786 6 VINNVACBDS0  138E ONVOY, LLC - VA 236   2020-12-04   
571-786 7 ARTNVAARXBY  965H FRACTEL, LLC 236   2020-09-06   
571-786 8 VINNVACBDS0  138E ONVOY, LLC - VA 236   2020-12-04   
571-786 9 BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2021-10-20   
571-910 A VINNVACBDS0  138E ONVOY, LLC - VA 236      
571-910 0 VINNVACBDS0  138E ONVOY, LLC - VA 236   2021-06-17   
571-910 1 BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2021-07-14   
571-910 2 BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2021-07-14   
571-910 3 BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2021-07-14   
571-910 4 BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2021-07-14   
571-910 5 OCQNVAXAVMD  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2021-08-09   
571-910 6 OCQNVAXAVMD  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2021-08-09   
571-910 7 OCQNVAXAVMD  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2021-08-09   
571-910 8 WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2021-09-28   
571-910 9 BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2022-01-13   
571-926 A WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236      
571-926 0 WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236   2007-08-21   
571-926 1 WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236   2007-08-21   
571-926 2 WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236   2006-11-13   
571-926 3 WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236   2006-11-13   
571-926 4 WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236   2006-11-13   
571-926 5 WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236   2007-06-01   
571-926 6 WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236   2007-07-02   
571-926 7 WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236   2007-08-21   
571-926 8 ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2007-07-12   
571-926 9 ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2007-05-18   
703-230 A   829J PAETEC ITEL, LLC 236   2025-04-02   
703-230 0   829J PAETEC ITEL, LLC 236      
703-230 1   829J PAETEC ITEL, LLC 236      
703-230 2   829J PAETEC ITEL, LLC 236      
703-230 3   829J PAETEC ITEL, LLC 236      
703-230 4   829J PAETEC ITEL, LLC 236      
703-230 5   829J PAETEC ITEL, LLC 236      
703-230 6   829J PAETEC ITEL, LLC 236      
703-230 7   829J PAETEC ITEL, LLC 236      
703-230 8 LARLMDCC5MD  7769 LEVEL 3 TELECOM OF VIRGINIA, LLC - VA 236   2006-04-07   
703-230 9   829J PAETEC ITEL, LLC 236      
703-234 A WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
703-263 A CNVIVACTDS0  9213 VERIZON VIRGINIA, INC. 236      
703-263 0 CNVIVACTDS0  9213 VERIZON VIRGINIA, INC. 236      
703-263 1 CNVIVACTDS0  9213 VERIZON VIRGINIA, INC. 236      
703-263 2 CNVIVACTDS0  9213 VERIZON VIRGINIA, INC. 236      
703-263 3 CNVIVACTDS0  9213 VERIZON VIRGINIA, INC. 236      
703-263 4 CNVIVACTDS0  9213 VERIZON VIRGINIA, INC. 236      
703-263 5 WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236   2017-04-08   
703-263 6   318J COMCAST IP PHONE, LLC 236   2018-03-18   
703-263 7 CNVIVACTDS0  9213 VERIZON VIRGINIA, INC. 236      
703-263 8 WASHDC127MD  073H TELNYX LLC 236   2017-03-20   
703-263 9 CNVIVACTDS0  9213 VERIZON VIRGINIA, INC. 236      
703-282 A WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236      
703-376 A   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
703-376 0   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
703-376 1 WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236   2004-09-29   
703-376 2   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
703-376 3   5832 CORETEL VIRGINIA, LLC - VA 236   2003-01-18   
703-376 4 BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2003-10-11   
703-376 5 HRNDVAHEDS0  9213 VERIZON VIRGINIA, INC. 236   2004-07-17   
703-376 6   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
703-376 7 WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236   2004-08-06   
703-376 8   318J COMCAST IP PHONE, LLC 236   2004-02-29   
703-376 9 ARTNVACKDS2  7421 AT&T - LOCAL 236      
703-378 A CNVIVACTDS0  9213 VERIZON VIRGINIA, INC. 236      
703-390 A RSTNVAFMRP0  9213 VERIZON VIRGINIA, INC. 236      
703-391 A RSTNVAFMRP0  9213 VERIZON VIRGINIA, INC. 236      
703-421 A HRNDVASTDS0  9213 VERIZON VIRGINIA, INC. 236      
703-429 A MCLNVA23DS4  8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236      
703-429 0 WASHDCDP8MD  079F BANDWIDTH.COM CLEC, LLC - VA 236   2012-03-04   
703-429 1 ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2016-01-18   
703-429 2 MCLNVA23DS4  8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2012-03-03   
703-429 3 WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2012-02-24   
703-429 4   318J COMCAST IP PHONE, LLC 236   2012-12-04   
703-429 5 WASHDC12KMD  145J TERRA NOVA TELECOM INC. 236   2024-10-14   
703-429 6 WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2012-04-10   
703-429 7 MCLNVA23DS4  8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2012-06-08   
703-429 8 MCLNVA23DS4  8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2012-06-08   
703-429 9 MCLNVA23DS4  8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2012-06-08   
703-430 A HRNDVASTDS0  9213 VERIZON VIRGINIA, INC. 236      
703-433 A HRNDVASTDS0  9213 VERIZON VIRGINIA, INC. 236      
703-434 A LNHMMDADGT0  8830 STARPOWER COMMUNICATIONS, LLC - VA 236      
703-434 0 WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236   2004-06-12   
703-434 1 WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236   2004-06-12   
703-434 2 WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236   2004-06-12   
703-434 3 MCLNVA23DS4  8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2005-01-19   
703-434 4 WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2004-02-09   
703-434 5 WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236   2004-02-09   

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

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.