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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: MCMBILXDZMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
309-588 A Macomb IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 977      
309-598 A Kirkwood IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 977      
309-705 A Roseville IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 977      
309-731 A Macomb IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 977      
309-760 A Monmouth IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 977      
309-832 A Abingdon IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 977      

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

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