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.

OCN: 433E SONIC TELECOM, LLC - CA

<< 1 2 3

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
925-626 6 East Contra Costa CA SNRTCAHFDS0  722   2015-04-09   
925-635 6 Pittsburg CA SNRTCAHFDS0  722   2015-04-09   
925-723 7 Martinez CA SNRTCAHFDS0  722   2012-12-22   
925-794 3 Moraga CA SNRTCAHFDS0  722   2015-12-12   
925-800 4 Livermore CA SNRTCAHFDS0  722   2015-12-12   
925-889 8 Clayton CA SNRTCAHFDS0  722   2015-04-09   
925-913 3 Bishop Ranch CA SNRTCAHFDS0  722   2015-12-12   
925-918 9 Pleasanton CA SNRTCAHFDS0  722   2015-12-12   
925-999 3 Dublin-San Ramon CA SNRTCAHFDS0  722   2015-12-12   

<< 1 2 3

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.