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: 677

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-677 A Sheffield IA DESMIADTXUX  965H FRACTEL, LLC 632      
641-677 0 Sheffield IA DESMIA72GMD  6529 T-MOBILE USA, INC. 632   2024-08-15   
641-677 3 Sheffield IA DESMIADTFMD  221F ONVOY, LLC - IA 632   2021-04-16   
641-677 4 Sheffield IA DESMIADTFMD  221F ONVOY, LLC - IA 632   2021-04-16   
641-677 7 Sheffield IA DESMIADTXUX  965H FRACTEL, LLC 632   2020-02-17   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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