Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: CHCGIL242MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
872-867 A Chicago Zone 03-Kildare IL 939H COMMIO, LLC 358      
872-867 5 Chicago Zone 03-Kildare IL 939H COMMIO, LLC 358   2022-06-16   

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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