Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 815 [Rate centres in NPA 815] [Dial plan for NPA 815]

NXX: 731

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
815-731 A Plainfield IL PLFDILPLDS0  9329 ILLINOIS BELL TEL CO 358      
815-731 0 Plainfield IL   9329 ILLINOIS BELL TEL CO 358   2006-03-18   
815-731 1 Plainfield IL   9329 ILLINOIS BELL TEL CO 358   2006-03-18   
815-731 2 Plainfield IL   9329 ILLINOIS BELL TEL CO 358   2006-03-18   
815-731 3 Plainfield IL   9329 ILLINOIS BELL TEL CO 358   2006-03-18   
815-731 4 Plainfield IL   9329 ILLINOIS BELL TEL CO 358   2006-03-18   
815-731 5 Plainfield IL   9329 ILLINOIS BELL TEL CO 358   2006-03-18   
815-731 6 Plainfield IL   9329 ILLINOIS BELL TEL CO 358   2006-03-18   
815-731 7 Plainfield IL   9329 ILLINOIS BELL TEL CO 358   2006-03-18   
815-731 8 Plainfield IL   9329 ILLINOIS BELL TEL CO 358   2006-03-18   
815-731 9 Plainfield IL   9329 ILLINOIS BELL TEL CO 358   2006-03-18   

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

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