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: 400

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-400 A Humeston IA DESMIADTFMD  221F ONVOY, LLC - IA 632      
641-400 0 Humeston IA DESMIADTXUX  965H FRACTEL, LLC 632   2020-03-09   
641-400 1 Humeston IA KNVLIAXCSMD  221F ONVOY, LLC - IA 632   2020-11-19   
641-400 2 Humeston IA KNVLIAXCPMD  624H ONVOY SPECTRUM, LLC 632   2024-03-09   
641-400 4 Humeston IA DESMIADTXUX  965H FRACTEL, LLC 632   2020-03-09   
641-400 5 Humeston IA KNVLIAXCSMD  221F ONVOY, LLC - IA 632   2021-04-22   
641-400 6 Humeston IA KNVLIAXCSMD  221F ONVOY, LLC - IA 632   2020-01-03   
641-400 7 Humeston IA KNVLIAXCSMD  221F ONVOY, LLC - IA 632   2021-04-22   
641-400 9 Humeston IA DESMIADTXKX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 632   2021-05-31   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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