Local Calling Guide

Area code/prefix search

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NPA: 641 [Rate centres in NPA 641] [Dial plan for NPA 641]

NXX: 455

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-455 A Ottumwa IA DESMIAITX6X  6529 T-MOBILE USA, INC. 632      
641-455 0 Ottumwa IA   985E BANDWIDTH.COM CLEC, LLC - IA 632   2014-03-14   
641-455 1 Ottumwa IA   5562 METROPCS, INC. 632      
641-455 2 Ottumwa IA   6529 T-MOBILE USA, INC. 632   2007-03-04   
641-455 3 Ottumwa IA   6529 T-MOBILE USA, INC. 632      
641-455 4 Ottumwa IA   6266 UNITED STATES CELLULAR - IA 632   2007-12-14   
641-455 5 Ottumwa IA   9631 QWEST CORPORATION 632   2006-12-08   
641-455 6 Ottumwa IA   6529 T-MOBILE USA, INC. 632      
641-455 7 Ottumwa IA   6529 T-MOBILE USA, INC. 632   2014-08-15   
641-455 8 Ottumwa IA   6266 UNITED STATES CELLULAR - IA 632   2005-08-08   
641-455 9 Ottumwa IA   6529 T-MOBILE USA, INC. 632      

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

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