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.

Alexander, IA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
641-609 A   221F ONVOY, LLC IA 632   2018-12-23   
641-609 6   221F ONVOY, LLC IA 632   2018-12-23   
641-609 7   7575 CENTURYLINK COMMUNICATIONS LLC 632   2018-12-25   
641-609 8   221F ONVOY, LLC IA 632   2019-10-27   
641-692 A ALXNIAXORS6  1127 FRONTIER COMMUNICATIONS OF IOWA, INC. 632      

Last updated: Thu, 10 Sep 2020 02:15:24 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.