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: 892

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
510-892 A Hayward CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
510-892 0 Hayward CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
510-892 1 Hayward CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2021-04-18   
510-892 2 Hayward CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
510-892 3 Hayward CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
510-892 4 Hayward CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
510-892 5 Hayward CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
510-892 6 Hayward CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2021-03-11   
510-892 7 Hayward CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2021-03-11   
510-892 8 Hayward CA SNFCCA21XNZ  624H ONVOY SPECTRUM, LLC 722   2021-11-23   
510-892 9 Hayward CA SNFCCA21XNZ  624H ONVOY SPECTRUM, LLC 722   2021-11-23   

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.