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: DCTRILDNDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
217-872 A Decatur IL 9329 ILLINOIS BELL TEL CO 374      
217-872 0 Decatur IL 9329 ILLINOIS BELL TEL CO 374      
217-872 1 Decatur IL 9329 ILLINOIS BELL TEL CO 374      
217-872 2 Decatur IL 9329 ILLINOIS BELL TEL CO 374      
217-872 3 Decatur IL 9329 ILLINOIS BELL TEL CO 374      
217-872 4 Decatur IL 9329 ILLINOIS BELL TEL CO 374      
217-872 5 Decatur IL 9329 ILLINOIS BELL TEL CO 374      
217-872 6 Decatur IL 9329 ILLINOIS BELL TEL CO 374      
217-872 7 Decatur IL 9329 ILLINOIS BELL TEL CO 374      
217-872 8 Decatur IL 9329 ILLINOIS BELL TEL CO 374      
217-875 A Decatur IL 9329 ILLINOIS BELL TEL CO 374      
217-876 A Decatur IL 9329 ILLINOIS BELL TEL CO 374      
217-877 A Decatur IL 9329 ILLINOIS BELL TEL CO 374      

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

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