Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 510 [Rate centres in NPA 510] [Dial plan for NPA 510]

NXX: 610

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
510-610 A Oakland: Main-Piedmont DA CA SNFCCA01GT0  6010 NEW CINGULAR WIRELESS PCS, LLC 722      

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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