Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 341 [Rate centres in NPA 341] [Dial plan for NPA 341]

NXX: 263

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
341-263 A Fremont-Newark: Main DA CA   649C ONVOY, LLC - CA 722   2025-11-23   
341-263 0 Fremont-Newark: Main DA CA   649C ONVOY, LLC - CA 722   2025-11-23   
341-263 1 Fremont-Newark: Main DA CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2025-11-24   
341-263 8 Fremont-Newark: Main DA CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2025-12-15   

Last updated: Sat, 21 Mar 2026 23:53:39 UTC

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