Local Calling Guide

Area code/prefix search

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

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
815-554 A East Dubuque IL 846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 634      
815-554 6 East Dubuque IL 846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 634   2010-04-15   

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Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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