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: 878

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
657-878 A Anaheim CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2026-07-24   
657-878 0 Anaheim CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2026-07-24   
657-878 1 Anaheim CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2026-07-24   
657-878 2 Anaheim CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2026-07-24   
657-878 3 Anaheim CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2026-07-24   
657-878 4 Anaheim CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2026-07-24   
657-878 5 Anaheim CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2026-07-24   
657-878 6 Anaheim CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2026-07-24   
657-878 7 Anaheim CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2026-07-24   
657-878 8 Anaheim CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2026-07-24   
657-878 9 Anaheim CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2026-07-24   

Last updated: Tue, 16 Jun 2026 00:09:45 UTC

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