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: 203

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
738-203 A Los Angeles: DA 13 CA   649C ONVOY, LLC - CA 730   2026-02-01   
738-203 0 Los Angeles: DA 13 CA   649C ONVOY, LLC - CA 730   2026-02-01   
738-203 1 Los Angeles: DA 13 CA   649C ONVOY, LLC - CA 730   2026-02-01   
738-203 2 Los Angeles: DA 13 CA   649C ONVOY, LLC - CA 730   2026-02-23   
738-203 7 Los Angeles: DA 13 CA   649C ONVOY, LLC - CA 730   2026-03-26   
738-203 8 Los Angeles: DA 13 CA   649C ONVOY, LLC - CA 730   2026-02-23   
738-203 9 Los Angeles: DA 13 CA   649C ONVOY, LLC - CA 730   2026-02-23   

Last updated: Wed, 04 Mar 2026 03:00:52 UTC

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