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: 961

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
217-961 A Mattoon IL MTONILXCRMD  224C ONVOY, LLC 976      
217-961 0 Mattoon IL   224C ONVOY, LLC 976   2020-10-09   
217-961 1 Mattoon IL   224C ONVOY, LLC 976   2021-03-06   
217-961 2 Mattoon IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 976   2021-07-16   
217-961 3 Mattoon IL   224C ONVOY, LLC 976   2021-03-06   
217-961 4 Mattoon IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 976   2021-07-16   
217-961 5 Mattoon IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 976   2021-07-16   
217-961 6 Mattoon IL   224C ONVOY, LLC 976   2021-03-06   
217-961 7 Mattoon IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 976   2022-08-20   
217-961 8 Mattoon IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 976   2022-08-20   
217-961 9 Mattoon IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 976   2022-08-20   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.