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: 520

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
712-520 A Glenwood IA CRRLIAAF0MD  6266 UNITED STATES CELLULAR - IA 644      
712-520 0 Glenwood IA   6266 UNITED STATES CELLULAR - IA 644      
712-520 1 Glenwood IA   6266 UNITED STATES CELLULAR - IA 644      
712-520 2 Glenwood IA   6266 UNITED STATES CELLULAR - IA 644      
712-520 3 Glenwood IA   6266 UNITED STATES CELLULAR - IA 644      
712-520 4 Glenwood IA   6266 UNITED STATES CELLULAR - IA 644      
712-520 5 Glenwood IA   6266 UNITED STATES CELLULAR - IA 644   2011-12-09   
712-520 6 Glenwood IA   221F ONVOY, LLC - IA 644   2008-09-21   
712-520 7 Glenwood IA   6266 UNITED STATES CELLULAR - IA 644      
712-520 8 Glenwood IA   6266 UNITED STATES CELLULAR - IA 644   2020-11-26   
712-520 9 Glenwood IA   593K MCC TELEPHONY LLC 644   2010-04-16   

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

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