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: 388

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
341-388 A Richmond CA SNJUCACL7MD  965H FRACTEL, LLC 722      
341-388 0 Richmond CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2021-07-16   
341-388 1 Richmond CA   145J TERRA NOVA TELECOM INC. 722   2025-08-25   
341-388 3 Richmond CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2021-07-16   
341-388 5 Richmond CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2021-08-08   
341-388 6 Richmond CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2022-09-19   
341-388 8 Richmond CA SNJUCACL7MD  965H FRACTEL, LLC 722   2021-06-19   
341-388 9 Richmond CA OKLECAZV1MD  6529 T-MOBILE USA, INC. 722   2021-07-15   

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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