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: 844

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-844 A Peoria IL PEORILPJX5Z  939H COMMIO, LLC 368      
309-844 0 Peoria IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 368   2022-06-18   
309-844 1 Peoria IL   6265 UNITED STATES CELLULAR - IL 368   2024-10-17   
309-844 4 Peoria IL   939H COMMIO, LLC 368   2020-01-03   
309-844 8 Peoria IL   939H COMMIO, LLC 368   2024-02-02   
309-844 9 Peoria IL   939H COMMIO, LLC 368   2024-02-02   

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.