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: 279 [Rate centres in NPA 279] [Dial plan for NPA 279]

Block: A

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA Eff date Disc date
279-200 A Sacramento: Main DA CA   4129 O1 COMMUNICATIONS, INC. - CA 726 2018-03-12   
279-321 A Folsom CA   4129 O1 COMMUNICATIONS, INC. - CA 726 2018-05-11   
279-333 A Elk Grove CA   649C NEUTRAL TANDEM-CALIFORNIA, LLC - CA 726 2018-03-16   
279-399 A Sacramento: Main DA CA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 726 2018-07-25   
279-444 A Sacramento: Main DA CA   649C NEUTRAL TANDEM-CALIFORNIA, LLC - CA 726 2018-03-16   
279-777 A Sacramento: North DA CA   649C NEUTRAL TANDEM-CALIFORNIA, LLC - CA 726 2018-03-16   
279-888 A Lincoln CA   649C NEUTRAL TANDEM-CALIFORNIA, LLC - CA 726 2018-03-16   
279-999 A South Placer CA   649C NEUTRAL TANDEM-CALIFORNIA, LLC - CA 726 2018-03-16   

Last updated: Thu, 19 Jul 2018 01:19:47 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.