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.

Malcom, IA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
641-528 A MLCMIAXORS3  1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 632      
641-528 0 DESMIA72HMD  5562 METROPCS, INC. 632   2018-08-11   
641-528 1 MLCMIAXORS3  1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 632      
641-528 2 MLCMIAXORS3  1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 632      
641-528 3 MLCMIAXORS3  1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 632      
641-528 4 MLCMIAXORS3  1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 632      
641-528 5 MLCMIAXORS3  1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 632      
641-528 6 DESMIADTTMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 632   2017-06-19   
641-528 7 DESMIADTXJX  508J CENTURYLINK COMMUNICATIONS, LLC 632   2017-03-23   
641-528 8 BOONIA01DS1  544H INTEGRATED PATH COMMUNCATIONS, LLC - IA 632   2018-05-15   
641-528 9 MLCMIAXORS3  1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 632      
641-643 A GRNLIAXCMMD  624H ONVOY SPECTRUM, LLC 632      
641-643 2 GRNLIAXCPMD  221F ONVOY, LLC - IA 632   2022-06-04   
641-643 3 GRNLIAXCPMD  221F ONVOY, LLC - IA 632   2021-09-12   
641-643 4 GRNLIAXCPMD  221F ONVOY, LLC - IA 632   2021-09-12   
641-643 6 GRNLIAXCPMD  221F ONVOY, LLC - IA 632   2021-06-12   
641-643 9 GRNLIAXCMMD  624H ONVOY SPECTRUM, LLC 632   2022-01-23   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.