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: 820

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
712-820 A Council Bluffs IA   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 644   2025-10-12   
712-820 0 Council Bluffs IA   145J TERRA NOVA TELECOM INC. 644   2025-10-16   
712-820 9 Council Bluffs IA   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 644   2025-10-12   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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