Local Calling Guide

Area code/prefix search

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NPA: 738 [Rate centres in NPA 738] [Dial plan for NPA 738]

NXX: 666

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
738-666 A Montebello CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2026-02-17   
738-666 0 Montebello CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2026-02-17   
738-666 1 Montebello CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2026-02-20   
738-666 2 Montebello CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2026-03-26   
738-666 3 Montebello CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2026-03-26   
738-666 6 Montebello CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2026-02-17   
738-666 7 Montebello CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2026-05-22   
738-666 8 Montebello CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2026-04-23   
738-666 9 Montebello CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2026-03-23   

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

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