Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 530 [Rate centres in NPA 530] [Dial plan for NPA 530]

NXX: 531

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
530-531 A Biggs CA CHICCA01XCX  649C ONVOY, LLC - CA 724      
530-531 0 Biggs CA   6010 NEW CINGULAR WIRELESS PCS, LLC 724   2014-03-19   
530-531 1 Biggs CA   515J IP HORIZON LLC 724      
530-531 2 Biggs CA   515J IP HORIZON LLC 724      
530-531 3 Biggs CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724   2011-04-04   
530-531 4 Biggs CA   981E BANDWIDTH.COM CLEC, LLC - CA 724   2019-05-17   
530-531 5 Biggs CA   6010 NEW CINGULAR WIRELESS PCS, LLC 724   2004-10-01   
530-531 6 Biggs CA   6010 NEW CINGULAR WIRELESS PCS, LLC 724   2024-12-26   
530-531 7 Biggs CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 724   2015-11-10   
530-531 8 Biggs CA   649C ONVOY, LLC - CA 724   2017-04-28   
530-531 9 Biggs CA   649C ONVOY, LLC - CA 724   2016-03-05   

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

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