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: 255

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
310-255 A Santa Monica: Santa Monica DA CA WLANCA01DS0  7480 PACIFIC BELL (COMPETITIVE) 730      

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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