Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 530 [Rate centres in NPA 530] [Dial plan for NPA 530]

NXX: 905

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
530-905 A Yreka CA RDNGCAGA0MD  6261 UNITED STATES CELLULAR - CA 724      
530-905 0 Yreka CA RDNGCAGA0MD  6261 UNITED STATES CELLULAR - CA 724      
530-905 1 Yreka CA RDNGCAGA0MD  6261 UNITED STATES CELLULAR - CA 724      
530-905 2 Yreka CA RDNGCAGA0MD  6261 UNITED STATES CELLULAR - CA 724      
530-905 3 Yreka CA RDNGCAGA0MD  6261 UNITED STATES CELLULAR - CA 724      
530-905 4 Yreka CA RDNGCAGA0MD  6261 UNITED STATES CELLULAR - CA 724   2021-02-15   
530-905 5 Yreka CA CHICCA01XCX  649C ONVOY, LLC - CA 724   2021-08-09   
530-905 6 Yreka CA CHICCA01XCX  649C ONVOY, LLC - CA 724   2021-08-09   
530-905 7 Yreka CA CHICCACW2MD  939H COMMIO, LLC 724   2024-01-20   
530-905 8 Yreka CA   145J TERRA NOVA TELECOM INC. 724   2023-08-07   
530-905 9 Yreka CA CHICCACW2MD  939H COMMIO, LLC 724   2023-08-19   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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