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: 221

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
916-221 A Folsom CA SCRMCACNDS0  8690 GLOBAL CROSSING LOCAL SERVICES, INC. - CA 726      
916-221 0 Folsom CA SCRMCA01GT1  6010 NEW CINGULAR WIRELESS PCS, LLC 726   2005-03-06   
916-221 1 Folsom CA SCRMCA01GT1  6010 NEW CINGULAR WIRELESS PCS, LLC 726   2005-03-06   
916-221 2 Folsom CA SCRMCA01GT1  6010 NEW CINGULAR WIRELESS PCS, LLC 726   2005-03-06   
916-221 3 Folsom CA SCRMCACNDS0  8690 GLOBAL CROSSING LOCAL SERVICES, INC. - CA 726      
916-221 4 Folsom CA SCRMCACNDS0  8690 GLOBAL CROSSING LOCAL SERVICES, INC. - CA 726      
916-221 5 Folsom CA SCRMCACNDS0  8690 GLOBAL CROSSING LOCAL SERVICES, INC. - CA 726      
916-221 6 Folsom CA SCRMCACNDS0  8690 GLOBAL CROSSING LOCAL SERVICES, INC. - CA 726      
916-221 7 Folsom CA WSCRCAHW3MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 726      
916-221 8 Folsom CA SCRMCA01GT1  6010 NEW CINGULAR WIRELESS PCS, LLC 726   2005-10-21   
916-221 9 Folsom CA SCRMCACNDS0  8690 GLOBAL CROSSING LOCAL SERVICES, INC. - CA 726      

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.