Local Calling Guide

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NPA: 657 [Rate centres in NPA 657] [Dial plan for NPA 657]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
657-326 A Garden Grove CA   0051 SHELCOMM 730   2018-06-22   

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

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