Local Calling Guide

Area code/prefix search

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Ottumwa, IA

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
641-997 5 DESMIADTX1X  624H ONVOY SPECTRUM, LLC 632   2025-01-06   
641-997 9   6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 632   2025-08-25   

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Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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