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: 650 [Rate centres in NPA 650] [Dial plan for NPA 650]

NXX: 710

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
650-710 A San Francisco: Juniper DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-710 0 San Francisco: Juniper DA CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2023-06-13   
650-710 4 San Francisco: Juniper DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2023-06-11   
650-710 5 San Francisco: Juniper DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2023-06-11   

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

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