Local Calling Guide

Area code/prefix search

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

NXX: 544

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
657-544 A Silverado CA LSANCAJWIMD  965H FRACTEL, LLC 730      
657-544 0 Silverado CA LSANCA03IMD  553J WHITESKY COMMUNICATIONS, LLC 730   2021-10-02   
657-544 1 Silverado CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2021-11-24   
657-544 2 Silverado CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2021-11-24   
657-544 3 Silverado CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2021-11-24   
657-544 4 Silverado CA LSANCAJWIMD  965H FRACTEL, LLC 730   2021-09-09   
657-544 5 Silverado CA LSANCA03GMD  624H ONVOY SPECTRUM, LLC 730   2021-11-07   
657-544 6 Silverado CA LSANCA03GMD  624H ONVOY SPECTRUM, LLC 730   2021-11-07   
657-544 7 Silverado CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2021-11-24   
657-544 8 Silverado CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2021-11-24   
657-544 9 Silverado CA BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2021-11-24   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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