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: 823

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
712-823 A Sergeant Bluff IA SXCYIA78X1X  9877 LEVEL 3 COMMUNICATIONS, LLC - IA 630      
712-823 0 Sergeant Bluff IA SXCYIA78X1X  9877 LEVEL 3 COMMUNICATIONS, LLC - IA 630      
712-823 1 Sergeant Bluff IA SXCYIA03DS1  7021 FIBERCOMM, LC 630   2012-06-08   
712-823 2 Sergeant Bluff IA SXCYIA03DS1  7021 FIBERCOMM, LC 630   2014-04-07   
712-823 3 Sergeant Bluff IA SXCYIA78X1X  9877 LEVEL 3 COMMUNICATIONS, LLC - IA 630   2011-02-03   
712-823 4 Sergeant Bluff IA SPNCIAAC2MD  6266 UNITED STATES CELLULAR - IA 630   2019-06-23   
712-823 5 Sergeant Bluff IA   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 630   2025-04-05   
712-823 8 Sergeant Bluff IA SXCYIADTRMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 630   2015-05-29   
712-823 9 Sergeant Bluff IA SXCYIA78X1X  9877 LEVEL 3 COMMUNICATIONS, LLC - IA 630      

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

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