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
831-421 A Santa Cruz CA SNCZCA01DS0  9740 PACIFIC BELL 722      
831-421 0 Santa Cruz CA   9740 PACIFIC BELL 722      
831-421 1 Santa Cruz CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2005-03-05   
831-421 2 Santa Cruz CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2005-03-05   
831-421 3 Santa Cruz CA   9262 UTILITY TELECOM GROUP, LLC - CA 722      
831-421 4 Santa Cruz CA   9262 UTILITY TELECOM GROUP, LLC - CA 722      
831-421 5 Santa Cruz CA   9262 UTILITY TELECOM GROUP, LLC - CA 722      
831-421 6 Santa Cruz CA   9262 UTILITY TELECOM GROUP, LLC - CA 722      
831-421 7 Santa Cruz CA   9262 UTILITY TELECOM GROUP, LLC - CA 722      
831-421 8 Santa Cruz CA   9262 UTILITY TELECOM GROUP, LLC - CA 722      
831-421 9 Santa Cruz CA   9740 PACIFIC BELL 722      

Last updated: Thu, 10 Sep 2020 02:15:24 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.