Local Calling Guide

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Alexander, IA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
641-609 A DESMIADTFMD  221F ONVOY, LLC - IA 632      
641-609 3   624H ONVOY SPECTRUM, LLC 632   2021-07-17   
641-609 4   221F ONVOY, LLC - IA 632   2020-11-19   
641-609 5   221F ONVOY, LLC - IA 632   2020-11-19   
641-609 6   221F ONVOY, LLC - IA 632   2018-12-23   
641-609 7   508J 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, 29 Jan 2026 14:35:03 UTC

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