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: SNTDCAUJCM9

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
510-819 4 Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2024-09-22   
510-819 5 Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2024-09-22   
510-826 A Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
510-826 9 Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2017-01-23   
510-857 0 Fremont-Newark: Main DA CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2022-12-22   
510-861 A Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
510-861 0 Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
510-861 1 Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
510-861 2 Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
510-861 3 Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2003-09-21   
510-861 4 Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2005-02-19   
510-861 5 Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2005-02-19   
510-861 6 Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
510-861 7 Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2005-02-19   
510-861 8 Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2005-02-19   
510-861 9 Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2005-04-16   
510-862 A Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
510-862 0 Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
510-862 1 Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
510-862 2 Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2005-04-16   
510-862 3 Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2005-04-16   
510-862 4 Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2005-04-16   
510-862 5 Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2005-07-24   
510-862 6 Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
510-862 7 Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2005-07-24   
510-862 8 Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2005-07-24   
510-862 9 Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2005-12-07   
510-870 6 Fremont-Newark: Greenleaf DA CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2021-05-19   
510-870 7 Fremont-Newark: Greenleaf DA CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2021-05-19   
510-892 1 Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2021-04-18   
510-925 5 Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2014-11-17   
510-925 6 Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2014-11-17   
510-931 0 Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2008-10-03   
510-931 8 Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2006-01-10   
510-931 9 Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2006-01-10   
510-935 A Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
510-935 0 Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2014-09-07   
510-935 1 Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2014-09-07   
510-935 2 Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2014-09-07   
510-935 3 Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2014-09-07   
510-935 6 Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2014-07-30   
510-935 8 Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2014-06-13   
510-935 9 Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2014-05-11   
510-936 3 Fremont-Newark: Main DA CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2010-03-06   
510-940 3 Hayward CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2011-07-25   
510-941 8 Fremont-Newark: Greenleaf DA CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2017-11-19   
510-945 A Fremont-Newark: Greenleaf DA CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722      
510-945 2 Fremont-Newark: Greenleaf DA CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2024-12-25   
510-945 7 Fremont-Newark: Greenleaf DA CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2015-06-27   
510-945 8 Fremont-Newark: Greenleaf DA CA 6010 NEW CINGULAR WIRELESS PCS, LLC 722   2015-06-27   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 >>

Last updated: Tue, 16 Jun 2026 00:09:45 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.