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: 392

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
510-392 A El Sobrante-Pinole CA   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2024-03-01   
510-392 0 El Sobrante-Pinole CA   649C ONVOY, LLC - CA 722      
510-392 1 El Sobrante-Pinole CA   649C ONVOY, LLC - CA 722      
510-392 2 El Sobrante-Pinole CA   649C ONVOY, LLC - CA 722      
510-392 3 El Sobrante-Pinole CA   649C ONVOY, LLC - CA 722      
510-392 4 El Sobrante-Pinole CA   649C ONVOY, LLC - CA 722      
510-392 5 El Sobrante-Pinole CA   649C ONVOY, LLC - CA 722      
510-392 6 El Sobrante-Pinole CA   649C ONVOY, LLC - CA 722      
510-392 7 El Sobrante-Pinole CA   6529 T-MOBILE USA, INC. 722      
510-392 8 El Sobrante-Pinole CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722      
510-392 9 El Sobrante-Pinole CA   6010 NEW CINGULAR WIRELESS PCS, LLC 722      

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.