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: 548

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-548 A Roseville IL MCMBILXDJMD  846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 977      
309-548 1 Roseville IL MCMBILXDJMD  846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 977   2010-07-24   
309-548 2 Roseville IL MCMBILXDZMD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 977   2019-07-08   
309-548 3 Roseville IL MCMBILXDX5X  624H ONVOY SPECTRUM, LLC 977   2023-07-29   
309-548 4 Roseville IL GLBGILXDDMD  224C ONVOY, LLC 977   2021-02-12   
309-548 5 Roseville IL GLBGILXDDMD  224C ONVOY, LLC 977   2021-02-12   
309-548 7 Roseville IL GLBGILXDAMD  508J CENTURYLINK COMMUNICATIONS, LLC 977   2014-07-29   
309-548 8 Roseville IL GLBGILXDDMD  224C ONVOY, LLC 977   2020-03-13   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.