Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: CHMPILLW0MD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
217-991 8 Champaign-Urbana IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 370   2021-10-10   
447-647 1 Mahomet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 370   2021-06-18   

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Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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