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
657-317 A Silverado CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2018-11-18   
657-317 0 Silverado CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2019-02-25   
657-317 1 Silverado CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2019-02-25   
657-317 2 Silverado CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2019-02-25   
657-317 3 Silverado CA   649C ONVOY, LLC - CA 730   2019-03-03   
657-317 4 Silverado CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2019-02-25   
657-317 5 Silverado CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2019-02-25   
657-317 6 Silverado CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2019-02-25   
657-317 7 Silverado CA   649C ONVOY, LLC - CA 730   2019-03-03   
657-317 8 Silverado CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2019-02-25   
657-317 9 Silverado CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2018-11-18   

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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