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: 395

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
312-395 A Chicago Zone 01-Franklin IL CHCGILCLEMD  7421 AT&T - LOCAL 358      
312-395 0 Chicago Zone 01-Franklin IL CHCGILMF6MD  6529 T-MOBILE USA, INC. 358   2011-06-28   
312-395 1 Chicago Zone 01-Franklin IL CHCGILFRDS0  9329 ILLINOIS BELL TEL CO 358   2003-05-21   
312-395 2 Chicago Zone 01-Franklin IL CHCGILFRDS0  9329 ILLINOIS BELL TEL CO 358   2003-01-06   
312-395 3 Chicago Zone 01-Franklin IL CHCGILFRDS0  9329 ILLINOIS BELL TEL CO 358   2003-01-06   
312-395 4 Chicago Zone 01-Franklin IL CHCGILFRDS0  9329 ILLINOIS BELL TEL CO 358   2003-01-06   
312-395 5 Chicago Zone 01-Franklin IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2003-01-12   
312-395 6 Chicago Zone 01-Franklin IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2003-01-12   
312-395 7 Chicago Zone 01-Franklin IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2002-10-22   
312-395 8 Chicago Zone 01-Franklin IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2003-01-12   
312-395 9 Chicago Zone 01-Franklin IL   7421 AT&T - LOCAL 358      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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