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.

Switch: MTONILXCDS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
217-261 A Mattoon IL 063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 976      
217-261 0 Mattoon IL 063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 976   2022-12-01   
217-261 7 Mattoon IL 063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 976   2023-02-27   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.