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: MTVRILMVDS0

Remotes:

Switch Switch name Switch type
BUFDILBLRS0  BLUFORD  RSC 
HRMJILHMRS0  HARMONY (JEFFERSON)  RSC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
618-241 A Mount Vernon IL 9329 ILLINOIS BELL TEL CO 520      
618-241 1 Mount Vernon IL 9329 ILLINOIS BELL TEL CO 520      
618-241 2 Mount Vernon IL 9329 ILLINOIS BELL TEL CO 520      
618-241 3 Mount Vernon IL 9329 ILLINOIS BELL TEL CO 520      
618-241 4 Mount Vernon IL 9329 ILLINOIS BELL TEL CO 520      
618-241 5 Mount Vernon IL 9329 ILLINOIS BELL TEL CO 520      
618-241 6 Mount Vernon IL 9329 ILLINOIS BELL TEL CO 520      
618-241 7 Mount Vernon IL 9329 ILLINOIS BELL TEL CO 520      
618-241 8 Mount Vernon IL 9329 ILLINOIS BELL TEL CO 520      
618-241 9 Mount Vernon IL 9329 ILLINOIS BELL TEL CO 520      
618-242 A Mount Vernon IL 9329 ILLINOIS BELL TEL CO 520      
618-244 A Mount Vernon IL 9329 ILLINOIS BELL TEL CO 520      
618-246 A Mount Vernon IL 9329 ILLINOIS BELL TEL CO 520      
618-246 1 Mount Vernon IL 9329 ILLINOIS BELL TEL CO 520      
618-246 2 Mount Vernon IL 9329 ILLINOIS BELL TEL CO 520      
618-246 3 Mount Vernon IL 9329 ILLINOIS BELL TEL CO 520      
618-246 4 Mount Vernon IL 9329 ILLINOIS BELL TEL CO 520      
618-246 5 Mount Vernon IL 9329 ILLINOIS BELL TEL CO 520      
618-246 6 Mount Vernon IL 9329 ILLINOIS BELL TEL CO 520      
618-246 7 Mount Vernon IL 9329 ILLINOIS BELL TEL CO 520      
618-246 8 Mount Vernon IL 9329 ILLINOIS BELL TEL CO 520      
618-246 9 Mount Vernon IL 9329 ILLINOIS BELL TEL CO 520      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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