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: 287

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
279-287 A Lincoln CA   6010 NEW CINGULAR WIRELESS PCS, LLC 726   2025-10-12   
279-287 9 Lincoln CA   6010 NEW CINGULAR WIRELESS PCS, LLC 726   2025-10-12   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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