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: 420

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
530-420 A Robbins CA SCRMCA01XXY  981E BANDWIDTH.COM CLEC, LLC - CA 726      
530-420 0 Robbins CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 726      
530-420 1 Robbins CA   649C ONVOY, LLC - CA 726   2019-02-23   
530-420 2 Robbins CA   981E BANDWIDTH.COM CLEC, LLC - CA 726      
530-420 3 Robbins CA   073H TELNYX LLC 726   2019-10-10   
530-420 4 Robbins CA   506J TWILIO INTERNATIONAL, INC. 726   2021-04-12   
530-420 5 Robbins CA   981E BANDWIDTH.COM CLEC, LLC - CA 726   2009-02-24   
530-420 6 Robbins CA   981E BANDWIDTH.COM CLEC, LLC - CA 726   2010-02-28   
530-420 7 Robbins CA   981E BANDWIDTH.COM CLEC, LLC - CA 726   2015-05-10   
530-420 8 Robbins CA   649C ONVOY, LLC - CA 726   2019-02-23   
530-420 9 Robbins CA   515J IP HORIZON LLC 726   2006-09-23   

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

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