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: 656

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
530-656 A Nicolaus CA NCLSCA12RS0  9740 PACIFIC BELL 726      
530-656 1 Nicolaus CA   9740 PACIFIC BELL 726      
530-656 2 Nicolaus CA   9740 PACIFIC BELL 726      
530-656 3 Nicolaus CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 726   2013-04-07   
530-656 4 Nicolaus CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 726   2013-04-07   
530-656 5 Nicolaus CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 726   2005-07-10   
530-656 6 Nicolaus CA   649C ONVOY, LLC - CA 726   2012-12-30   
530-656 7 Nicolaus CA   649C ONVOY, LLC - CA 726   2010-07-22   
530-656 8 Nicolaus CA   981E BANDWIDTH.COM CLEC, LLC - CA 726   2009-02-24   
530-656 9 Nicolaus CA   490J DISH WIRELESS, LLC 726   2023-10-29   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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