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: MTVRILMV9MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
618-448 A Mascoutah IL 9915 DELTA COMMS, LLC DBA CLEARWAVE COMMUNICATIONS - IL 520      
618-642 A Greenville IL 075A DELTA COMMS, LLC DBA CLEARWAVE COMMUNICATIONS - IL 520      
618-762 A Waltonville IL 075A DELTA COMMS, LLC DBA CLEARWAVE COMMUNICATIONS - IL 520      
618-899 A Mount Vernon IL 075A DELTA COMMS, LLC DBA CLEARWAVE COMMUNICATIONS - IL 520      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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