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: RCISILRIDS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
309-206 A Rock Island IL 9329 ILLINOIS BELL TEL CO 634      
309-558 A Rock Island IL 9329 ILLINOIS BELL TEL CO 634      
309-732 A Rock Island IL 9329 ILLINOIS BELL TEL CO 634      
309-779 A Rock Island IL 9329 ILLINOIS BELL TEL CO 634      
309-782 A Rock Island IL 9329 ILLINOIS BELL TEL CO 634      
309-786 A Rock Island IL 9329 ILLINOIS BELL TEL CO 634      
309-788 A Rock Island IL 9329 ILLINOIS BELL TEL CO 634      
309-793 A Rock Island IL 9329 ILLINOIS BELL TEL CO 634      
309-794 A Rock Island IL 9329 ILLINOIS BELL TEL CO 634      

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.