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: 573

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
217-573 A Raymond IL MTONILXCZMD  846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 976      
217-573 0 Raymond IL MTONILXCX7X  073H TELNYX LLC 976   2022-08-20   
217-573 1 Raymond IL TYVLIL35DS0  197H COMPUTER TECHNIQUES, INC. - IL 976   2023-12-14   
217-573 3 Raymond IL MTONILXC1MD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 976   2017-09-14   
217-573 4 Raymond IL MTONILXCZMD  846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 976   2010-08-14   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.