Local Calling Guide

Area code/prefix search

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NPA: 310 [Rate centres in NPA 310] [Dial plan for NPA 310]

NXX: 631

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
310-631 A Compton: Compton DA CA CMTNCA01DS1  9740 PACIFIC BELL 730      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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