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: RCISILRIIMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
309-203 0 East Moline IL 8790 GENESEO COMMUNICATIONS SERVICES, INC. - IL 634   2015-05-23   
309-430 A Rock Island IL 8790 GENESEO COMMUNICATIONS SERVICES, INC. - IL 634      
309-430 1 Rock Island IL 8790 GENESEO COMMUNICATIONS SERVICES, INC. - IL 634   2015-05-02   
309-517 8 Moline IL 8790 GENESEO COMMUNICATIONS SERVICES, INC. - IL 634   2015-05-23   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.