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: 712 [Rate centres in NPA 712] [Dial plan for NPA 712]

NXX: 256

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
712-256 A Council Bluffs IA OMAHNENWXGY  318J COMCAST IP PHONE, LLC 644      
712-256 0 Council Bluffs IA OMAHNENWXGY  318J COMCAST IP PHONE, LLC 644      
712-256 1 Council Bluffs IA OMAHNENWXGY  318J COMCAST IP PHONE, LLC 644      
712-256 2 Council Bluffs IA OMAHNENWXGY  318J COMCAST IP PHONE, LLC 644      
712-256 3 Council Bluffs IA OMAHNENWXGY  318J COMCAST IP PHONE, LLC 644      
712-256 4 Council Bluffs IA OMAHNENWXGY  318J COMCAST IP PHONE, LLC 644      
712-256 5 Council Bluffs IA OMAHNENWXGY  318J COMCAST IP PHONE, LLC 644      
712-256 6 Council Bluffs IA OMAHNENWXGY  318J COMCAST IP PHONE, LLC 644      
712-256 7 Council Bluffs IA OMAHNENWXGY  318J COMCAST IP PHONE, LLC 644   2003-04-14   
712-256 8 Council Bluffs IA OMAHNENWXGY  318J COMCAST IP PHONE, LLC 644   2004-07-22   
712-256 9 Council Bluffs IA OMAHNENWXGY  318J COMCAST IP PHONE, LLC 644   2005-08-23   

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.