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.
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Agency, IA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
641-276 A KNVLIAXCPMD  624H ONVOY SPECTRUM, LLC 632      
641-276 1 KNVLIAXCSMD  221F ONVOY, LLC - IA 632      
641-276 2 KNVLIAXCSMD  221F ONVOY, LLC - IA 632      
641-276 6 KNVLIAXCSMD  221F ONVOY, LLC - IA 632      
641-276 7 DESMIADTX1X  624H ONVOY SPECTRUM, LLC 632      
641-276 9 KNVLIAXCPMD  624H ONVOY SPECTRUM, LLC 632      
641-937 A AGNCIAXORS0  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-937 0 AGNCIAXORS0  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-937 1 AGNCIAXORS0  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-937 2 AGNCIAXORP0  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-937 3 AGNCIAXORS0  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-937 4 AGNCIAXORS0  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-937 5 AGNCIAXORS0  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-937 6 AGNCIAXORS0  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-937 7 AGNCIAXORS0  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 632      
641-937 8 KNVLIAXC1MD  751F MCC TELEPHONY OF IOWA, LLC - IA 632      
641-937 9 DESMIADTXJX  508J CENTURYLINK COMMUNICATIONS, LLC 632      

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

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