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: SPFDILSWDS0

Remotes:

Switch Switch name Switch type
ATHNILANRS0  ATHENS  RSC 
CNTRILCTRS0  CANTRALL  RSS 
OKFRILOFRS0  OAKFORD  RSS 
PTBGILPGRS0  PETERSBURG  RSC 
TALLILTLRS0  TALLULA  RSC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
217-546 A Springfield IL 9329 ILLINOIS BELL TEL CO 374      
217-547 A Springfield IL 9329 ILLINOIS BELL TEL CO 374      
217-698 A Springfield IL 9329 ILLINOIS BELL TEL CO 374      
217-726 A Springfield IL 9329 ILLINOIS BELL TEL CO 374      
217-787 A Springfield IL 9329 ILLINOIS BELL TEL CO 374      
217-793 A Springfield IL 9329 ILLINOIS BELL TEL CO 374      
217-862 A Springfield IL 9329 ILLINOIS BELL TEL CO 374      
217-862 0 Springfield IL 9329 ILLINOIS BELL TEL CO 374      
217-862 1 Springfield IL 9329 ILLINOIS BELL TEL CO 374      
217-862 2 Springfield IL 9329 ILLINOIS BELL TEL CO 374      
217-862 5 Springfield IL 9329 ILLINOIS BELL TEL CO 374      
217-862 6 Springfield IL 9329 ILLINOIS BELL TEL CO 374      
217-862 7 Springfield IL 9329 ILLINOIS BELL TEL CO 374      
217-862 9 Springfield IL 9329 ILLINOIS BELL TEL CO 374      

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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