Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Morton, IL

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
309-938 4   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 368      
309-938 5   224C ONVOY, LLC 368   2023-10-16   
309-938 6   224C ONVOY, LLC 368   2023-10-16   
309-938 7   224C ONVOY, LLC 368   2023-10-16   
309-938 8   224C ONVOY, LLC 368   2023-10-16   
309-938 9   224C ONVOY, LLC 368   2023-10-16   

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

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