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: 228

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-228 A Charles City IA CHCYIATCRS2  9631 QWEST CORPORATION 632      
641-228 0 Charles City IA   6266 UNITED STATES CELLULAR - IA 632   2004-10-02   
641-228 1 Charles City IA   9631 QWEST CORPORATION 632      
641-228 2 Charles City IA   9631 QWEST CORPORATION 632      
641-228 3 Charles City IA   9631 QWEST CORPORATION 632      
641-228 4 Charles City IA   9631 QWEST CORPORATION 632      
641-228 5 Charles City IA   9631 QWEST CORPORATION 632      
641-228 6 Charles City IA   9631 QWEST CORPORATION 632      
641-228 7 Charles City IA   9631 QWEST CORPORATION 632      
641-228 8 Charles City IA   9631 QWEST CORPORATION 632      
641-228 9 Charles City IA   9631 QWEST CORPORATION 632      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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