Local Calling Guide

Area code/prefix search

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

Block: A

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
657-944 A Garden Grove CA LSANCAJWIMD  965H FRACTEL, LLC 730      
657-946 A Silverado CA LSANCAJWIMD  965H FRACTEL, LLC 730      
657-955 A Westminster CA LSANCAJWIMD  965H FRACTEL, LLC 730      
657-957 A Santa Ana CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
657-966 A Santa Ana CA LSANCAJWIMD  965H FRACTEL, LLC 730      
657-977 A Westminster CA LSANCAJWIMD  965H FRACTEL, LLC 730      
657-999 A Anaheim CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730      

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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