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.

NPA: 510 [Rate centres in NPA 510] [Dial plan for NPA 510]

NXX: 941

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
510-941 A Fremont-Newark: Greenleaf DA CA OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722      
510-941 0 Fremont-Newark: Greenleaf DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2017-06-16   
510-941 1 Fremont-Newark: Greenleaf DA CA SNJUCACL3MD  073H TELNYX LLC 722   2017-06-05   
510-941 2 Fremont-Newark: Greenleaf DA CA OKLECAZVGT0  5562 METROPCS, INC. 722   2017-10-12   
510-941 3 Fremont-Newark: Greenleaf DA CA OKLECAZVGT0  5562 METROPCS, INC. 722   2017-10-12   
510-941 4 Fremont-Newark: Greenleaf DA CA OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722   2017-11-13   
510-941 5 Fremont-Newark: Greenleaf DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2018-01-20   
510-941 6 Fremont-Newark: Greenleaf DA CA OKLECAZVGT0  5562 METROPCS, INC. 722   2018-06-01   
510-941 7 Fremont-Newark: Greenleaf DA CA OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722   2017-01-26   
510-941 8 Fremont-Newark: Greenleaf DA CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2017-11-19   
510-941 9 Fremont-Newark: Greenleaf DA CA OKLECAZVGT0  5562 METROPCS, INC. 722   2017-03-26   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.