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.

College Springs, IA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
712-582 A CLSPIAXORL0  1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 644      
712-582 0 DESMIAITGT5  444G AUREON COMMUNICATIONS, LLC 644   2019-09-30   
712-582 1 CLSPIAXORP0  1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 644      
712-582 3 CLSPIAXORL0  1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 644      
712-582 5 OMAHNENWXPX  221F ONVOY, LLC - IA 644   2019-11-28   
712-582 6 CLSPIAXORL0  1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 644      
712-582 7 OMAHNENWXPX  221F ONVOY, LLC - IA 644   2021-04-02   
712-582 8 OMAHNENWXPX  221F ONVOY, LLC - IA 644   2021-04-02   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.