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: 991

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
712-991 A Sioux City IA   985E BANDWIDTH.COM CLEC, LLC - IA 630   2025-10-26   
712-991 0 Sioux City IA   985E BANDWIDTH.COM CLEC, LLC - IA 630   2025-10-26   

Last updated: Mon, 15 Sep 2025 02:24:40 UTC

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