Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Clearmont, MO

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
660-566 A KSCYMO55X0Z  965H FRACTEL, LLC 524      
660-566 5   145J TERRA NOVA TELECOM INC. 524   2025-07-24   
660-566 6   965H FRACTEL, LLC 524   2020-10-30   
660-729 A BRJTMOXADS1  4401 IAMO COMMUNICATIONS, INC. 524      
660-729 0   4401 IAMO COMMUNICATIONS, INC. 524      
660-729 1   4401 IAMO COMMUNICATIONS, INC. 524      
660-729 2   4401 IAMO COMMUNICATIONS, INC. 524      
660-729 3   4401 IAMO COMMUNICATIONS, INC. 524      
660-729 4   4401 IAMO COMMUNICATIONS, INC. 524      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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