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: 270

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
341-270 A Oakland: Alameda DA CA   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2026-10-30   
341-270 7 Oakland: Alameda DA CA   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2026-10-30   
341-270 8 Oakland: Alameda DA CA   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2026-10-30   
341-270 9 Oakland: Alameda DA CA   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2026-10-30   

Last updated: Tue, 29 Sep 2026 03:00:13 UTC

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