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]

Block: A

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
650-996 A Mountain View CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-997 A San Francisco: Juniper DA CA COLACA01DS0  9740 PACIFIC BELL 722      
650-999 A Palo Alto CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      

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Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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