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: 831 [Rate centres in NPA 831] [Dial plan for NPA 831]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
831-756 A Salinas CA SLNSCA01XGX  9262 UTILITY TELECOM GROUP, LLC - CA 736   2005-11-03   
831-756 0 Salinas CA   5562 METRO PCS, INC. 736   2009-10-20   
831-756 1 Salinas CA   6664 SPRINT SPECTRUM L.P. 736   2007-12-19   
831-756 2 Salinas CA   5562 METRO PCS, INC. 736   2009-07-10   
831-756 3 Salinas CA   5562 METRO PCS, INC. 736   2009-08-17   
831-756 4 Salinas CA   5562 METRO PCS, INC. 736   2010-07-04   
831-756 5 Salinas CA   5562 METRO PCS, INC. 736   2009-05-11   
831-756 6 Salinas CA   6664 SPRINT SPECTRUM L.P. 736   2012-10-07   
831-756 7 Salinas CA   9262 UTILITY TELECOM GROUP, LLC - CA 736   2005-11-06   
831-756 8 Salinas CA   6664 SPRINT SPECTRUM L.P. 736   2012-10-07   
831-756 9 Salinas CA   6664 SPRINT SPECTRUM L.P. 736   2012-10-07   

Last updated: Tue, 31 Dec 2019 02:37:20 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.