Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 571 [Rate centres in NPA 571] [Dial plan for NPA 571]

NXX: 761

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
571-761 A Lorton VA VINNVACBDS0  138E ONVOY, LLC - VA 236   2026-06-28   
571-761 0 Lorton VA VINNVACBDS0  138E ONVOY, LLC - VA 236   2026-06-28   
571-761 5 Lorton VA WASHDC127MD  073H TELNYX LLC 236   2026-07-27   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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