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: 661

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-661 A Martinsburg IA MRBGIAXORP0  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-661 0 Martinsburg IA MRBGIAXORP0  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-661 1 Martinsburg IA MRBGIAXORP0  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-661 2 Martinsburg IA MRBGIAXORP0  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-661 3 Martinsburg IA KNVLIAXCSMD  221F ONVOY, LLC - IA 632      
641-661 4 Martinsburg IA MRBGIAXORP0  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-661 5 Martinsburg IA KNVLIAXCSMD  221F ONVOY, LLC - IA 632      
641-661 6 Martinsburg IA BOONIA01DS1  544H INTEGRATED PATH COMMUNCATIONS, LLC - IA 632      
641-661 7 Martinsburg IA DESMIADTXJX  508J CENTURYLINK COMMUNICATIONS, LLC 632      
641-661 8 Martinsburg IA KNVLIAXCSMD  221F ONVOY, LLC - IA 632      
641-661 9 Martinsburg IA KNVLIAXCSMD  221F ONVOY, LLC - IA 632      

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.