Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 310 [Rate centres in NPA 310] [Dial plan for NPA 310]

NXX: 534

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
310-534 A Lomita CA LOMTCA11DS0  9740 PACIFIC BELL 730      

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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