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: 290

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-290 A Milo IA DESMIAITX9X  490J DISH WIRELESS, LLC 632      
641-290 0 Milo IA   145J TERRA NOVA TELECOM INC. 632   2025-06-06   
641-290 2 Milo IA KNVLIAXCPMD  624H ONVOY SPECTRUM, LLC 632   2024-03-09   
641-290 9 Milo IA DESMIAITX9X  490J DISH WIRELESS, LLC 632   2022-10-01   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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