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.

NPA: 309 [Rate centres in NPA 309] [Dial plan for NPA 309]

NXX: 987

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-987 A Cordova IL RCISILRIWMD  846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 634      
309-987 1 Cordova IL RCISILRIWMD  846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 634      
309-987 2 Cordova IL RCISILFP0MD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 634      
309-987 3 Cordova IL HMPNILXD7MD  7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 634      
309-987 4 Cordova IL RCISILRIX3X  224C ONVOY, LLC 634      
309-987 7 Cordova IL RCISILRIX0X  508J CENTURYLINK COMMUNICATIONS, LLC 634      
309-987 8 Cordova IL RCISILRIX3X  224C ONVOY, LLC 634      
309-987 9 Cordova IL HMPNILXDAMD  495J STRATUS NETWORKS 634      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.