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: 639

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
530-639 A Smartsville CA SMAVCA11RS0  9740 PACIFIC BELL 726      
530-639 0 Smartsville CA   981E BANDWIDTH.COM CLEC, LLC - CA 726   2015-05-25   
530-639 1 Smartsville CA   9740 PACIFIC BELL 726      
530-639 2 Smartsville CA   9740 PACIFIC BELL 726      
530-639 3 Smartsville CA   649C ONVOY, LLC - CA 726   2010-07-22   
530-639 4 Smartsville CA   649C ONVOY, LLC - CA 726   2013-03-31   
530-639 5 Smartsville CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 726   2005-07-23   
530-639 6 Smartsville CA   516C AT&T CORP. 726   2011-09-26   
530-639 7 Smartsville CA   624H ONVOY SPECTRUM, LLC 726   2024-01-12   
530-639 8 Smartsville CA   649C ONVOY, LLC - CA 726   2013-03-14   
530-639 9 Smartsville CA   9740 PACIFIC BELL 726      

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

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