Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 312 [Rate centres in NPA 312] [Dial plan for NPA 312]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
312-752 A Chicago Zone 01-Wabash IL CHCGILABDS0  7721 BROADWING COMMUNICATIONS, LLC - IL 358      
312-752 0 Chicago Zone 01-Wabash IL   6529 T-MOBILE USA, INC. 358   2004-11-20   
312-752 1 Chicago Zone 01-Wabash IL   7721 BROADWING COMMUNICATIONS, LLC - IL 358   2002-06-11   
312-752 2 Chicago Zone 01-Wabash IL   7721 BROADWING COMMUNICATIONS, LLC - IL 358   2002-06-11   
312-752 3 Chicago Zone 01-Wabash IL   7721 BROADWING COMMUNICATIONS, LLC - IL 358   2002-06-11   
312-752 4 Chicago Zone 01-Wabash IL   7721 BROADWING COMMUNICATIONS, LLC - IL 358   2002-06-11   
312-752 5 Chicago Zone 01-Wabash IL   6529 T-MOBILE USA, INC. 358   2004-10-05   
312-752 6 Chicago Zone 01-Wabash IL   6529 T-MOBILE USA, INC. 358   2004-10-05   
312-752 7 Chicago Zone 01-Wabash IL   6529 T-MOBILE USA, INC. 358   2004-10-05   
312-752 8 Chicago Zone 01-Wabash IL   6529 T-MOBILE USA, INC. 358   2004-11-20   
312-752 9 Chicago Zone 01-Wabash IL   7721 BROADWING COMMUNICATIONS, LLC - IL 358   2002-06-11   

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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