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: 266

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-266 A Ackley IA DESMIADTX6Y  516J TON80 COMMUNICATIONS, LLC 632      
641-266 1 Ackley IA   5562 METROPCS, INC. 632   2026-06-18   
641-266 2 Ackley IA   6529 T-MOBILE USA, INC. 632   2026-06-17   
641-266 6 Ackley IA DESMIADTX6Y  516J TON80 COMMUNICATIONS, LLC 632   2022-04-22   
641-266 7 Ackley IA DESMIADT1MD  9877 LEVEL 3 COMMUNICATIONS, LLC - IA 632   2023-01-08   
641-266 8 Ackley IA   346F HEART OF IOWA VENTURES, L.L.C. - IA 632   2025-05-23   
641-266 9 Ackley IA   515J IP HORIZON LLC 632   2025-08-22   

Last updated: Tue, 16 Jun 2026 00:09:45 UTC

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