Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 279 [Rate centres in NPA 279] [Dial plan for NPA 279]

NXX: 291

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
279-291 A Fair Oaks (Sacramento) CA   6010 NEW CINGULAR WIRELESS PCS, LLC 726   2026-01-09   
279-291 0 Fair Oaks (Sacramento) CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 726   2026-01-12   
279-291 9 Fair Oaks (Sacramento) CA   6010 NEW CINGULAR WIRELESS PCS, LLC 726   2026-01-09   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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