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: 217 [Rate centres in NPA 217] [Dial plan for NPA 217]

NXX: 575

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
217-575 A Warsaw IL WRSWILXCRS0  1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 977      
217-575 0 Warsaw IL WRSWILXCRS0  1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 977      
217-575 2 Warsaw IL MCMBILXDX5X  624H ONVOY SPECTRUM, LLC 977   2023-07-29   
217-575 5 Warsaw IL GLBGILXDDMD  224C ONVOY, LLC 977   2021-07-05   
217-575 7 Warsaw IL PLMOIL010MD  7091 ADAMS TELSYSTEMS, INC. 977   2015-05-02   
217-575 9 Warsaw IL WRSWILXCRS0  1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 977      

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.