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: 341

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
341-341 A Fremont-Newark: Oliver DA CA SNFCCA21XNZ  624H ONVOY SPECTRUM, LLC 722   2024-11-24   
341-341 0 Fremont-Newark: Oliver DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2026-06-14   
341-341 1 Fremont-Newark: Oliver DA CA   114J EXIANT COMMUNICATIONS LLC 722   2026-04-23   
341-341 2 Fremont-Newark: Oliver DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2026-01-23   
341-341 3 Fremont-Newark: Oliver DA CA SNFCCA21XNZ  624H ONVOY SPECTRUM, LLC 722   2024-11-24   
341-341 4 Fremont-Newark: Oliver DA CA SNFCCA21XNZ  624H ONVOY SPECTRUM, LLC 722   2024-11-24   
341-341 7 Fremont-Newark: Oliver DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2026-01-23   
341-341 8 Fremont-Newark: Oliver DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2026-01-23   
341-341 9 Fremont-Newark: Oliver DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2026-06-14   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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