Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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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
657-427 A Garden Grove CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2020-05-03   
657-427 2 Garden Grove CA   624H ONVOY SPECTRUM, LLC 730   2020-07-02   
657-427 3 Garden Grove CA   624H ONVOY SPECTRUM, LLC 730   2020-07-02   
657-427 4 Garden Grove CA   624H ONVOY SPECTRUM, LLC 730   2020-07-02   
657-427 8 Garden Grove CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2020-05-03   
657-427 9 Garden Grove CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2020-05-03   

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

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