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: 521

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-521 A Newton IA CNVLIABC1MD  6266 UNITED STATES CELLULAR - IA 632      
641-521 0 Newton IA   6266 UNITED STATES CELLULAR - IA 632      
641-521 1 Newton IA   6266 UNITED STATES CELLULAR - IA 632      
641-521 2 Newton IA   6266 UNITED STATES CELLULAR - IA 632      
641-521 3 Newton IA   6266 UNITED STATES CELLULAR - IA 632      
641-521 4 Newton IA   6266 UNITED STATES CELLULAR - IA 632      
641-521 5 Newton IA   6266 UNITED STATES CELLULAR - IA 632      
641-521 6 Newton IA   6266 UNITED STATES CELLULAR - IA 632      
641-521 7 Newton IA   6266 UNITED STATES CELLULAR - IA 632      
641-521 8 Newton IA   6266 UNITED STATES CELLULAR - IA 632      
641-521 9 Newton IA   6266 UNITED STATES CELLULAR - IA 632      

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

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