Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 350 [Rate centres in NPA 350] [Dial plan for NPA 350]

NXX: 255

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
350-255 A Manteca CA MNTCCAXGBMD  649C ONVOY, LLC - CA 738   2026-02-02   
350-255 0 Manteca CA MNTCCAXGBMD  649C ONVOY, LLC - CA 738   2026-02-02   
350-255 1 Manteca CA MNTCCAXGBMD  649C ONVOY, LLC - CA 738   2026-06-14   
350-255 5 Manteca CA   114J EXIANT COMMUNICATIONS LLC 738   2026-08-10   
350-255 6 Manteca CA   649C ONVOY, LLC - CA 738   2026-08-01   
350-255 7 Manteca CA   649C ONVOY, LLC - CA 738   2026-08-01   
350-255 8 Manteca CA   649C ONVOY, LLC - CA 738   2026-08-01   
350-255 9 Manteca CA SKTNCASLAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 738   2026-02-03   

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

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