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: 994

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
530-994 A Sierraville CA SRVLCA11RS1  9740 PACIFIC BELL 724      
530-994 0 Sierraville CA CHICCA01XCX  649C ONVOY, LLC - CA 724   2021-03-05   
530-994 1 Sierraville CA SRVLCA11RS1  9740 PACIFIC BELL 724      
530-994 2 Sierraville CA CHICCA01SMD  981E BANDWIDTH.COM CLEC, LLC - CA 724   2015-08-13   
530-994 3 Sierraville CA SRVLCA11RS1  9740 PACIFIC BELL 724      
530-994 5 Sierraville CA CHICCA017MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724   2005-08-01   
530-994 6 Sierraville CA CHICCA01SMD  981E BANDWIDTH.COM CLEC, LLC - CA 724   2015-09-17   
530-994 7 Sierraville CA   145J TERRA NOVA TELECOM INC. 724   2024-02-02   
530-994 8 Sierraville CA CHICCA01XCX  649C ONVOY, LLC - CA 724   2021-04-02   
530-994 9 Sierraville CA CHICCA01XCX  649C ONVOY, LLC - CA 724   2017-04-28   

Last updated: Tue, 29 Sep 2026 03:00:13 UTC

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