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]

NXX: 880

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
279-880 A Sacramento: Main DA CA SNJYCAHMDS1  193E 8X8, INC. 726   2026-07-13   
279-880 0 Sacramento: Main DA CA   649C ONVOY, LLC - CA 726   2026-07-24   
279-880 1 Sacramento: Main DA CA SNJYCAHMDS1  193E 8X8, INC. 726   2026-07-13   

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.