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: RCISILFP0MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
309-517 A Moline IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 634      
309-539 A Hampton IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 634      
309-628 A Aledo IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 634      
309-644 A Rock Island IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 634      
309-948 A Rock Island IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 634      
815-402 A Galena IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 634      

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

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