Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 641 [Rate centres in NPA 641] [Dial plan for NPA 641]

NXX: 512

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-512 A Mason City IA CNVLIABC1MD  6266 UNITED STATES CELLULAR - IA 632      
641-512 0 Mason City IA   6266 UNITED STATES CELLULAR - IA 632      
641-512 1 Mason City IA   6266 UNITED STATES CELLULAR - IA 632      
641-512 2 Mason City IA   6266 UNITED STATES CELLULAR - IA 632      
641-512 3 Mason City IA   6266 UNITED STATES CELLULAR - IA 632      
641-512 4 Mason City IA   6266 UNITED STATES CELLULAR - IA 632      
641-512 5 Mason City IA   6266 UNITED STATES CELLULAR - IA 632      
641-512 6 Mason City IA   6266 UNITED STATES CELLULAR - IA 632      
641-512 7 Mason City IA   6266 UNITED STATES CELLULAR - IA 632      
641-512 8 Mason City IA   6266 UNITED STATES CELLULAR - IA 632   2004-06-14   
641-512 9 Mason City IA   6266 UNITED STATES CELLULAR - IA 632   2003-11-19   

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

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