Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: SNMNCAXPPS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
310-664 A Santa Monica: Santa Monica DA CA 2319 FRONTIER CALIFORNIA INC. 730      

Last updated: Sat, 15 Nov 2025 03:38:44 UTC

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