Local Calling Guide

Area code/prefix search

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

NXX: 770

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
571-770 A Leesburg VA   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 246   2026-07-05   
571-770 6 Leesburg VA   4644 TELEPORT COMMUNICATIONS AMERICA, LLC - VA 246   2026-07-06   
571-770 9 Leesburg VA   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 246   2026-07-05   

Last updated: Tue, 16 Jun 2026 00:09:45 UTC

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