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: 583

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
310-583 A Santa Monica: Santa Monica DA CA ONTRCAXPXAY  6967 33 WIRELESS INC. 730      

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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