Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 916 [Rate centres in NPA 916] [Dial plan for NPA 916]

NXX: 423

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
916-423 A Sacramento: Main DA CA EKGVCAXGDS0  2308 CITIZENS TELECOM CA. DBA FRONTIER COM OF CA 726      

Last updated: Sun, 17 May 2026 03:26:51 UTC

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