Local Calling Guide

Area code/prefix search

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

NXX: 864

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
712-864 A Armstrong IA ARMSIAXPPS0  1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 630      
712-864 0 Armstrong IA   444G AUREON COMMUNICATIONS, LLC 630   2016-06-29   
712-864 1 Armstrong IA   1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 630      
712-864 3 Armstrong IA   1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 630      
712-864 4 Armstrong IA   5562 METROPCS, INC. 630   2018-08-03   
712-864 6 Armstrong IA   508J CENTURYLINK COMMUNICATIONS, LLC 630   2016-12-23   
712-864 7 Armstrong IA   1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 630      
712-864 8 Armstrong IA   221F ONVOY, LLC - IA 630   2021-05-05   

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

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