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: 991

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-991 A Osceola IA   6529 T-MOBILE USA, INC. 632   2025-05-04   
641-991 8 Osceola IA   6529 T-MOBILE USA, INC. 632   2025-05-04   
641-991 9 Osceola IA   6529 T-MOBILE USA, INC. 632   2025-05-04   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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