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: CHMPILCUDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
217-244 A Champaign-Urbana IL 9329 ILLINOIS BELL TEL CO 370      
217-255 A Champaign-Urbana IL 9329 ILLINOIS BELL TEL CO 370      
217-265 A Champaign-Urbana IL 9329 ILLINOIS BELL TEL CO 370      
217-278 A Champaign-Urbana IL 9329 ILLINOIS BELL TEL CO 370      
217-326 A Champaign-Urbana IL 9329 ILLINOIS BELL TEL CO 370      
217-328 A Champaign-Urbana IL 9329 ILLINOIS BELL TEL CO 370      
217-332 A Champaign-Urbana IL 9329 ILLINOIS BELL TEL CO 370      
217-333 A Champaign-Urbana IL 9329 ILLINOIS BELL TEL CO 370      
217-337 A Champaign-Urbana IL 9329 ILLINOIS BELL TEL CO 370      
217-344 A Champaign-Urbana IL 9329 ILLINOIS BELL TEL CO 370      
217-365 A Champaign-Urbana IL 9329 ILLINOIS BELL TEL CO 370      
217-367 A Champaign-Urbana IL 9329 ILLINOIS BELL TEL CO 370      
217-383 A Champaign-Urbana IL 9329 ILLINOIS BELL TEL CO 370      
217-384 A Champaign-Urbana IL 9329 ILLINOIS BELL TEL CO 370      
217-902 A Champaign-Urbana IL 9329 ILLINOIS BELL TEL CO 370      

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

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