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: CHMPILCPDS0

Remotes:

Switch Switch name Switch type
STJSILSHRS0  ST JOSEPH  RSC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
217-351 A Champaign-Urbana IL 9329 ILLINOIS BELL TEL CO 370      
217-352 A Champaign-Urbana IL 9329 ILLINOIS BELL TEL CO 370      
217-353 A Champaign-Urbana IL 9329 ILLINOIS BELL TEL CO 370      
217-355 A Champaign-Urbana IL 9329 ILLINOIS BELL TEL CO 370      
217-356 A Champaign-Urbana IL 9329 ILLINOIS BELL TEL CO 370      
217-359 A Champaign-Urbana IL 9329 ILLINOIS BELL TEL CO 370      
217-363 A Champaign-Urbana IL 9329 ILLINOIS BELL TEL CO 370      
217-366 A Champaign-Urbana IL 9329 ILLINOIS BELL TEL CO 370      
217-372 A Champaign-Urbana IL 9329 ILLINOIS BELL TEL CO 370      
217-373 A Champaign-Urbana IL 9329 ILLINOIS BELL TEL CO 370      
217-378 A Champaign-Urbana IL 9329 ILLINOIS BELL TEL CO 370      
217-398 A Champaign-Urbana IL 9329 ILLINOIS BELL TEL CO 370      
217-403 A Champaign-Urbana IL 9329 ILLINOIS BELL TEL CO 370      
217-591 A Champaign-Urbana IL 9329 ILLINOIS BELL TEL CO 370      
217-693 A Champaign-Urbana IL 9329 ILLINOIS BELL TEL CO 370      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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