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.
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NPA: 805 [Rate centres in NPA 805] [Dial plan for NPA 805]

NXX: 831

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
805-831 A Morro Bay CA SNLOCA01XFX  649C ONVOY, LLC - CA 740      
805-831 0 Morro Bay CA SNLOCA01XFX  649C ONVOY, LLC - CA 740   2024-08-27   
805-831 3 Morro Bay CA SNLOCA01XFX  649C ONVOY, LLC - CA 740   2023-08-26   
805-831 8 Morro Bay CA   624H ONVOY SPECTRUM, LLC 740   2025-01-30   

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

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