Local Calling Guide

Area code/prefix search

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Morris, IL

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
815-710 5 CHCGILCLXOX  516C AT&T CORP. 358   2011-10-28   
815-710 6 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2016-06-24   
815-710 7 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2014-11-03   
815-710 8 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2014-11-03   
815-710 9   145J TERRA NOVA TELECOM INC. 358   2021-01-15   
815-941 A MRRSILMSDS0  9329 ILLINOIS BELL TEL CO 358      
815-942 A MRRSILMSDS0  9329 ILLINOIS BELL TEL CO 358      

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

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