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: 475

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
530-475 A Hornbrook CA HRBKCA11RS0  9740 PACIFIC BELL 724      
530-475 0 Hornbrook CA   9740 PACIFIC BELL 724      
530-475 1 Hornbrook CA   9740 PACIFIC BELL 724      
530-475 2 Hornbrook CA   981E BANDWIDTH.COM CLEC, LLC - CA 724   2009-02-23   
530-475 3 Hornbrook CA   9740 PACIFIC BELL 724      
530-475 4 Hornbrook CA   981E BANDWIDTH.COM CLEC, LLC - CA 724   2014-07-18   
530-475 5 Hornbrook CA   515J IP HORIZON LLC 724   2002-10-12   
530-475 6 Hornbrook CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724   2005-08-02   
530-475 7 Hornbrook CA   145J TERRA NOVA TELECOM INC. 724   2024-02-02   
530-475 8 Hornbrook CA   981E BANDWIDTH.COM CLEC, LLC - CA 724   2010-02-27   
530-475 9 Hornbrook CA   649C ONVOY, LLC - CA 724   2016-03-05   

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

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