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: 701

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-701 A Spring Bay IL PEORILPJXRZ  495J STRATUS NETWORKS 368      
309-701 1 Spring Bay IL PEORILPJXRZ  495J STRATUS NETWORKS 368   2020-09-07   
309-701 2 Spring Bay IL PEORILPJXYX  224C ONVOY, LLC 368   2020-10-23   
309-701 3 Spring Bay IL PEORILPJXYX  224C ONVOY, LLC 368   2020-10-23   
309-701 4 Spring Bay IL   506J TWILIO INTERNATIONAL INC 368   2021-08-16   
309-701 5 Spring Bay IL   566J RADIANTIQ LLC 368   2021-05-23   
309-701 7 Spring Bay IL PEORILPJXYX  224C ONVOY, LLC 368   2020-09-09   
309-701 8 Spring Bay IL PEORILPJXYX  224C ONVOY, LLC 368   2020-09-09   

Last updated: Fri, 10 Sep 2021 12:38:21 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.