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: 678

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
530-678 A Dunsmuir CA CHICCA017MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724      
530-678 0 Dunsmuir CA CHICCA017MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724      
530-678 2 Dunsmuir CA CHICCA017MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724   2007-06-22   
530-678 3 Dunsmuir CA CHICCA01SMD  981E BANDWIDTH.COM CLEC, LLC - CA 724      
530-678 4 Dunsmuir CA CHICCA01SMD  981E BANDWIDTH.COM CLEC, LLC - CA 724      
530-678 5 Dunsmuir CA CHICCA01XCX  649C ONVOY, LLC - CA 724   2021-08-09   
530-678 6 Dunsmuir CA CHICCA01XCX  649C ONVOY, LLC - CA 724   2019-03-11   
530-678 7 Dunsmuir CA CHICCA01XCX  649C ONVOY, LLC - CA 724   2019-03-11   
530-678 9 Dunsmuir CA CHICCA01XCX  649C ONVOY, LLC - CA 724   2018-10-26   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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