Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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Switch: DKLBILXAQMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
815-283 A Waterman IL 846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 364      
815-571 A Shannon IL 846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 364      
815-855 A Milledgeville IL 846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 364      
815-982 A Tampico IL 846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 364      
815-989 A Prophetstown IL 846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 364      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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