Local Calling Guide

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NPA: 712 [Rate centres in NPA 712] [Dial plan for NPA 712]

NXX: 688

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
712-688 A Auburn IA AUBNIAXORP0  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 644      
712-688 1 Auburn IA   1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 644      
712-688 2 Auburn IA   1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 644      
712-688 3 Auburn IA   156C BTC, INC. - IA 644   2020-04-11   
712-688 4 Auburn IA   221F ONVOY, LLC - IA 644   2021-10-30   
712-688 5 Auburn IA   3699 CORN BELT COMMUNICATIONS, INC. - IA 644   2023-01-21   
712-688 6 Auburn IA   221F ONVOY, LLC - IA 644   2021-05-21   
712-688 7 Auburn IA   1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 644      
712-688 8 Auburn IA   1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 644      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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