Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 925 [Rate centres in NPA 925] [Dial plan for NPA 925]

NXX: 312

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
925-312 A Antioch CA SNFCCA21XEZ  6630 USA MOBILITY WIRELESS, INC. 722      

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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