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.

NPA: 571 [Rate centres in NPA 571] [Dial plan for NPA 571]

NXX: 697

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
571-697 A Triangle VA DMSCMDAGGT0  5832 CORETEL VIRGINIA, LLC - VA 236      
571-697 0 Triangle VA BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2019-10-05   
571-697 1 Triangle VA WASHDC127MD  073H TELNYX LLC 236   2019-12-05   
571-697 2 Triangle VA VINNVACBDS0  138E ONVOY, LLC - VA 236   2020-03-30   
571-697 3 Triangle VA VINNVACBDS0  138E ONVOY, LLC - VA 236   2020-03-30   
571-697 4 Triangle VA WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2019-05-10   
571-697 5 Triangle VA WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2019-05-10   
571-697 6 Triangle VA DMSCMDAGGT0  5832 CORETEL VIRGINIA, LLC - VA 236   2019-05-09   
571-697 7 Triangle VA VINNVACBDS0  138E ONVOY, LLC - VA 236   2020-03-30   
571-697 8 Triangle VA BTVLMD12CM9  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2020-01-02   
571-697 9 Triangle VA BTVLMD12CM9  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2020-02-24   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.