Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Chicago Zone 10-Pullman, IL

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
773-727 0 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-727 1 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-727 2 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-727 3 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-727 4 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-727 5 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-727 6 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-727 7 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-727 8 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358   2003-03-19   
773-727 9 ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
773-785 A CHCGILPUDS0  9329 ILLINOIS BELL TEL CO 358      
773-821 A CHCGILPUDS0  9329 ILLINOIS BELL TEL CO 358      
773-928 A CHCGILPUDS0  9329 ILLINOIS BELL TEL CO 358      
773-995 A CHCGILPUDS0  9329 ILLINOIS BELL TEL CO 358      

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Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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