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: 344

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-344 A Creston IA CNVLIABC1MD  6266 UNITED STATES CELLULAR - IA 632      
641-344 0 Creston IA   6266 UNITED STATES CELLULAR - IA 632      
641-344 1 Creston IA   6266 UNITED STATES CELLULAR - IA 632      
641-344 2 Creston IA   6266 UNITED STATES CELLULAR - IA 632      
641-344 3 Creston IA   6266 UNITED STATES CELLULAR - IA 632      
641-344 4 Creston IA   6266 UNITED STATES CELLULAR - IA 632      
641-344 5 Creston IA   6266 UNITED STATES CELLULAR - IA 632      
641-344 6 Creston IA   6266 UNITED STATES CELLULAR - IA 632      
641-344 7 Creston IA   6266 UNITED STATES CELLULAR - IA 632      
641-344 8 Creston IA   6266 UNITED STATES CELLULAR - IA 632      
641-344 9 Creston IA   6266 UNITED STATES CELLULAR - IA 632      

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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