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: 690

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
641-690 A Macksburg IA KNVLIAXCPMD  624H ONVOY SPECTRUM, LLC 632   2024-07-29   
641-690 0 Macksburg IA KNVLIAXCPMD  624H ONVOY SPECTRUM, LLC 632   2024-07-29   

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

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