Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 712 [Rate centres in NPA 712] [Dial plan for NPA 712]

NXX: 957

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
712-957 A Primghar IA HRTLIAAFRL0  3112 COMMUNITY CABLE TV AGCY O'BRIEN CO. DBA COMM.-IA 630      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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