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: 916 [Rate centres in NPA 916] [Dial plan for NPA 916]

NXX: 818

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
916-818 A Elk Grove CA WSCRCAKE1MD  6529 T-MOBILE USA, INC. 726      
916-818 0 Elk Grove CA   649C ONVOY, LLC - CA 726   2021-07-12   
916-818 1 Elk Grove CA   649C ONVOY, LLC - CA 726   2021-07-12   
916-818 2 Elk Grove CA   649C ONVOY, LLC - CA 726   2021-07-12   
916-818 3 Elk Grove CA   649C ONVOY, LLC - CA 726   2021-07-12   
916-818 4 Elk Grove CA   624H ONVOY SPECTRUM, LLC 726   2021-07-23   
916-818 5 Elk Grove CA   649C ONVOY, LLC - CA 726   2021-08-08   
916-818 6 Elk Grove CA   6529 T-MOBILE USA, INC. 726   2021-07-17   
916-818 7 Elk Grove CA   6529 T-MOBILE USA, INC. 726   2021-07-17   
916-818 8 Elk Grove CA   6529 T-MOBILE USA, INC. 726   2021-06-25   
916-818 9 Elk Grove CA   6529 T-MOBILE USA, INC. 726   2021-06-25   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.