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: 641 [Rate centres in NPA 641] [Dial plan for NPA 641]

NXX: 599

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-599 A St Ansgar IA STANIAXOPS0  1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 632      
641-599 4 St Ansgar IA   624H ONVOY SPECTRUM, LLC 632      
641-599 5 St Ansgar IA BOONIA01DS1  544H INTEGRATED PATH COMMUNCATIONS, LLC - IA 632      
641-599 6 St Ansgar IA GRNLIAXCPMD  221F ONVOY, LLC - IA 632      
641-599 7 St Ansgar IA DESMIADTXJX  508J CENTURYLINK COMMUNICATIONS, LLC 632      
641-599 9 St Ansgar IA STANIAXOPS0  1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 632      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.