Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 738 [Rate centres in NPA 738] [Dial plan for NPA 738]

NXX: 300

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
738-300 A Los Angeles: DA 06 CA   824J OPENTACT INC. 730   2026-07-26   
738-300 0 Los Angeles: DA 06 CA   824J OPENTACT INC. 730   2026-07-26   

Last updated: Tue, 16 Jun 2026 00:09:45 UTC

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