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]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
279-999 6 South Placer CA   6010 NEW CINGULAR WIRELESS PCS, LLC 726   2019-09-27   
279-999 7 South Placer CA   649C ONVOY, LLC - CA 726   2018-03-16   
279-999 8 South Placer CA   981E BANDWIDTH.COM CLEC, LLC - CA 726   2019-08-19   
279-999 9 South Placer CA   649C ONVOY, LLC - CA 726   2018-03-16   

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

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