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: 440

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-440 A Deer Creek IL PEORILTCDS0  5800 ITV-3, LLC D/B/A I3 BROADBAND 368      
309-440 0 Deer Creek IL PEORILTCDS0  5800 ITV-3, LLC D/B/A I3 BROADBAND 368      
309-440 1 Deer Creek IL PEORILPJXMY  846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 368   2010-03-15   
309-440 2 Deer Creek IL PEORILPJXDY  984E BANDWIDTH.COM CLEC, LLC - IL 368   2020-02-21   
309-440 4 Deer Creek IL PEORILPJXYX  224C ONVOY, LLC 368   2018-08-02   
309-440 5 Deer Creek IL PEORILPJXYX  224C ONVOY, LLC 368   2021-02-12   
309-440 6 Deer Creek IL PEORILPJXWZ  506J TWILIO INTERNATIONAL, INC. 368   2021-08-16   
309-440 7 Deer Creek IL PEORILPJ02Z  490J DISH WIRELESS, LLC 368   2023-11-04   
309-440 8 Deer Creek IL PEORILPJDS4  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 368   2015-11-01   
309-440 9 Deer Creek IL PEORILPJXRZ  495J STRATUS NETWORKS 368   2020-08-03   

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.