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: 261

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
341-261 A Fremont-Newark: Greenleaf DA CA SNFCCA21XNZ  624H ONVOY SPECTRUM, LLC 722   2025-02-27   
341-261 0 Fremont-Newark: Greenleaf DA CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2026-05-15   
341-261 1 Fremont-Newark: Greenleaf DA CA SNFCCA21XNZ  624H ONVOY SPECTRUM, LLC 722   2025-02-27   
341-261 6 Fremont-Newark: Greenleaf DA CA SNRSCA01KMD  7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2025-04-17   
341-261 7 Fremont-Newark: Greenleaf DA CA   649C ONVOY, LLC - CA 722   2026-08-21   
341-261 8 Fremont-Newark: Greenleaf DA CA   649C ONVOY, LLC - CA 722   2026-08-21   
341-261 9 Fremont-Newark: Greenleaf DA CA   649C ONVOY, LLC - CA 722   2026-08-21   

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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