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.

Switch: SNFCCA01GT0

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
510-965 8 Richmond CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2005-08-30   
510-974 4 Richmond CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2014-11-13   
510-974 5 Richmond CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2014-11-13   
510-993 2 Oakland: Berkeley DA CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2017-05-07   
510-993 4 Oakland: Berkeley DA CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2017-08-10   
510-996 2 Fremont-Newark: Main DA CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2003-08-05   
510-996 8 Fremont-Newark: Main DA CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2003-08-05   
669-500 3 Gilroy CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2014-03-19   

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Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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