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: PEORILPJXMY

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
309-554 A Lacon IL 846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 368      
309-603 A Chillicothe IL 846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 368      
309-651 A Yates City IL 846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 368      
309-814 A Glasford IL 846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 368      
309-842 A Germantown Hills IL 846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 368      
309-849 A Metamora IL 846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 368      
309-855 A Fairview (Fulton) IL 846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 368      
309-977 A Green Valley IL 846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 368      

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

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