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: 768

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
571-768 A Washington Zone 19 VA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2026-09-10   
571-768 9 Washington Zone 19 VA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2026-09-10   

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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