Local Calling Guide

Area code/prefix search

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NPA: 661 [Rate centres in NPA 661] [Dial plan for NPA 661]

NXX: 277

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
661-277 A Edwards CA EDWRCA01RS1  9740 PACIFIC BELL 734      

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

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