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: 609

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
217-609 A Casey IL MTONILXCZMD  846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 976      
217-609 0 Casey IL MTONILXCZMD  846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 976   2010-08-14   
217-609 1 Casey IL MTONILXCX0X  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 976   2016-03-31   
217-609 2 Casey IL MTONILXC1MD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 976   2021-11-08   
217-609 6 Casey IL MTONILXCRMD  224C ONVOY, LLC 976   2021-07-05   
217-609 9 Casey IL MTONILXCRMD  224C ONVOY, LLC 976   2021-04-09   

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.