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: 496

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
571-496 A Lorton Metro VA MCLNVA23DS4  8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236      
571-496 0 Lorton Metro VA WASHDC127MD  073H TELNYX LLC 236      
571-496 1 Lorton Metro VA ARTNVAARDS2  275G PEERLESS NETWORK OF VIRGINIA, LLC - VA 236      
571-496 2 Lorton Metro VA MCLNVA23DS4  8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236      
571-496 3 Lorton Metro VA VINNVACBDS0  138E ONVOY, LLC - VA 236      
571-496 4 Lorton Metro VA VINNVACBDS0  138E ONVOY, LLC - VA 236      
571-496 5 Lorton Metro VA VINNVACBDS0  138E ONVOY, LLC - VA 236      
571-496 6 Lorton Metro VA VINNVACBDS0  138E ONVOY, LLC - VA 236      
571-496 7 Lorton Metro VA WASHDC12DS6  275G PEERLESS NETWORK OF VIRGINIA, LLC - VA 236      
571-496 8 Lorton Metro VA VINNVACBDS0  138E ONVOY, LLC - VA 236      
571-496 9 Lorton Metro VA VINNVACBDS0  138E ONVOY, LLC - VA 236      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.