Local Calling Guide

Area code/prefix search

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Mason City, IL

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
217-360 A SPFDILMB0MD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 374      
217-360 0   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 374      
217-360 1   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 374   2015-10-30   
217-360 2   224C ONVOY, LLC 374   2020-05-21   
217-360 3   224C ONVOY, LLC 374   2018-07-30   
217-360 4   224C ONVOY, LLC 374   2020-05-21   
217-360 5   224C ONVOY, LLC 374   2020-05-21   
217-360 6   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 374   2016-01-22   
217-360 7   224C ONVOY, LLC 374   2020-05-21   
217-360 8   224C ONVOY, LLC 374   2019-04-15   
217-360 9   224C ONVOY, LLC 374   2019-04-15   
217-482 A MSCYILXCDS0  1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 374      
447-257 A SPFDILESX2Y  566J RADIANTIQ LLC 374   2021-06-25   
447-257 0   495J STRATUS NETWORKS 374   2021-12-13   
447-257 4   566J RADIANTIQ LLC 374   2021-06-25   
447-257 7   224C ONVOY, LLC 374   2021-08-01   

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

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