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]

Block: A

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
341-867 A Crockett CA   649C ONVOY, LLC - CA 722   2025-11-07   
341-888 A Fremont-Newark: Main DA CA SNFCCA21XCZ  252F WIDE VOICE, LLC - CA 722      
341-895 A Oakland: Alameda DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
341-899 A Oakland: Trinidad DA CA SNJUCACL7MD  965H FRACTEL, LLC 722      
341-900 A Crockett CA SNJUCACL7MD  965H FRACTEL, LLC 722      
341-946 A Oakland: Berkeley DA CA SNJUCACL7MD  965H FRACTEL, LLC 722      
341-999 A Richmond CA SNJUCACL7MD  965H FRACTEL, LLC 722      

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Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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