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: 779 [Rate centres in NPA 779] [Dial plan for NPA 779]

NXX: 717

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
779-717 A Spring Valley IL PEORILPJDS4  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 368      
779-717 0 Spring Valley IL PEORILPJXRZ  495J STRATUS NETWORKS 368   2020-08-02   
779-717 1 Spring Valley IL PEORILPJDS4  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 368   2015-12-06   
779-717 2 Spring Valley IL PEORILPJX1Y  6529 T-MOBILE USA, INC. 368   2017-05-25   
779-717 3 Spring Valley IL PEORILPJX1Y  6529 T-MOBILE USA, INC. 368   2017-05-25   
779-717 4 Spring Valley IL PEORILPJX1Y  6529 T-MOBILE USA, INC. 368   2017-05-25   
779-717 5 Spring Valley IL PEORILPJXMZ  624H ONVOY SPECTRUM, LLC 368   2021-06-29   
779-717 6 Spring Valley IL PEORILPJXMZ  624H ONVOY SPECTRUM, LLC 368   2021-11-13   
779-717 7 Spring Valley IL PEORILPJX1Z  508J CENTURYLINK COMMUNICATIONS, LLC 368   2016-08-05   
779-717 8 Spring Valley IL PEORILPJXUZ  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 368   2018-12-18   
779-717 9 Spring Valley IL PEORILPJXMZ  624H ONVOY SPECTRUM, LLC 368   2021-11-13   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.