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.

Dawson, IA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
515-428 A PRRYIACORS4  9631 QWEST CORPORATION 632      
515-428 0 DESMIAEA0MD  985E BANDWIDTH.COM CLEC, LLC - IA 632   2008-11-29   
515-428 1 DESMIAEA0MD  985E BANDWIDTH.COM CLEC, LLC - IA 632   2014-03-17   
515-428 2 DESMIAEA0MD  985E BANDWIDTH.COM CLEC, LLC - IA 632   2010-03-05   
515-428 3 DESMIADTFMD  221F ONVOY, LLC - IA 632   2012-12-14   
515-428 4 DESMIADTFMD  221F ONVOY, LLC - IA 632   2012-12-14   
515-428 5 DESMIADTFMD  221F ONVOY, LLC - IA 632   2013-01-23   
515-428 6 DESMIAEA0MD  985E BANDWIDTH.COM CLEC, LLC - IA 632   2015-05-16   
515-428 7 DESMIADTFMD  221F ONVOY, LLC - IA 632   2008-08-29   
515-428 8 PRRYIACORS4  9631 QWEST CORPORATION 632      
515-428 9 PRRYIACORS4  9631 QWEST CORPORATION 632      
515-750 A DESMIADTFMD  221F ONVOY, LLC - IA 632      
515-750 0 DESMIADTFMD  221F ONVOY, LLC - IA 632   2016-05-19   
515-750 1 DESMIADTFMD  221F ONVOY, LLC - IA 632   2016-05-19   
515-750 2 DESMIAEA0MD  985E BANDWIDTH.COM CLEC, LLC - IA 632   2018-08-24   
515-750 3 DESMIADTXMX  073H TELNYX LLC 632   2020-05-28   
515-750 4 DESMIADTFMD  221F ONVOY, LLC - IA 632   2020-11-16   
515-750 5 BOONIA01DS1  544H INTEGRATED PATH COMMUNCATIONS, LLC - IA 632   2018-05-14   
515-750 6 DESMIADTFMD  221F ONVOY, LLC - IA 632   2020-11-16   
515-750 7 DESMIADTXJX  508J CENTURYLINK COMMUNICATIONS, LLC 632   2017-03-21   
515-750 8 DESMIADTX2Y  506J TWILIO INTERNATIONAL, INC. 632   2020-12-28   
515-750 9 DESMIADTFMD  221F ONVOY, LLC - IA 632   2021-03-08   
515-784 A DESMIAEA0MD  985E BANDWIDTH.COM CLEC, LLC - IA 632      
515-784 0 DESMIAEA0MD  985E BANDWIDTH.COM CLEC, LLC - IA 632   2022-03-17   
515-784 1 DESMIAEA0MD  985E BANDWIDTH.COM CLEC, LLC - IA 632   2022-03-18   
515-784 2 DESMIAEA0MD  985E BANDWIDTH.COM CLEC, LLC - IA 632   2022-04-23   
515-784 7 DESMIADT1MD  9877 LEVEL 3 COMMUNICATIONS, LLC - IA 632   2023-01-08   
515-784 8   624H ONVOY SPECTRUM, LLC 632   2024-05-09   

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.