Local Calling Guide

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NPA: 312 [Rate centres in NPA 312] [Dial plan for NPA 312]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
312-428 7 Chicago Zone 01-Wabash IL   259E YMAX COMMUNICATIONS CORP. - IL 358   2009-09-04   
312-428 8 Chicago Zone 01-Wabash IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-01-06   
312-428 9 Chicago Zone 01-Wabash IL   259E YMAX COMMUNICATIONS CORP. - IL 358   2009-09-04   
312-429 A Chicago Zone 01-Franklin IL CHCGILCNDS1  8709 GLOBAL CROSSING LOCAL SERVICES, INC.-IL 358      
312-429 0 Chicago Zone 01-Franklin IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-429 1 Chicago Zone 01-Franklin IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-429 2 Chicago Zone 01-Franklin IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-429 3 Chicago Zone 01-Franklin IL   9329 AMERITECH ILLINOIS 358   2002-06-05   
312-429 4 Chicago Zone 01-Franklin IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-429 5 Chicago Zone 01-Franklin IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-429 6 Chicago Zone 01-Franklin IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-429 7 Chicago Zone 01-Franklin IL   8709 GLOBAL CROSSING LOCAL SERVICES, INC.-IL 358      
312-429 8 Chicago Zone 01-Franklin IL   8709 GLOBAL CROSSING LOCAL SERVICES, INC.-IL 358      
312-429 9 Chicago Zone 01-Franklin IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-430 A Chicago Zone 01-Canal IL CHCGILCLDS3  9329 AMERITECH ILLINOIS 358      
312-431 A Chicago Zone 01-Wabash IL CHCGILWBDS3  9329 AMERITECH ILLINOIS 358      
312-432 A Chicago Zone 01-Monroe IL CHCGILMODS1  9329 AMERITECH ILLINOIS 358      
312-433 A Chicago Zone 01-Monroe IL CHCGILMODS0  9329 AMERITECH ILLINOIS 358      
312-433 0 Chicago Zone 01-Monroe IL   9329 AMERITECH ILLINOIS 358      
312-433 1 Chicago Zone 01-Monroe IL   9329 AMERITECH ILLINOIS 358      
312-433 2 Chicago Zone 01-Monroe IL   9329 AMERITECH ILLINOIS 358      
312-433 3 Chicago Zone 01-Monroe IL   9329 AMERITECH ILLINOIS 358      
312-433 4 Chicago Zone 01-Monroe IL   9329 AMERITECH ILLINOIS 358      
312-433 5 Chicago Zone 01-Monroe IL   9329 AMERITECH ILLINOIS 358      
312-433 6 Chicago Zone 01-Monroe IL   9329 AMERITECH ILLINOIS 358      
312-433 7 Chicago Zone 01-Monroe IL   9329 AMERITECH ILLINOIS 358      
312-433 8 Chicago Zone 01-Monroe IL   9329 AMERITECH ILLINOIS 358      
312-433 9 Chicago Zone 01-Monroe IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2011-01-14   
312-434 A Chicago Zone 01-Calumet IL BRDVILBOCM1  6664 SPRINT SPECTRUM L.P. 358   2011-08-22   
312-434 0 Chicago Zone 01-Calumet IL   6664 SPRINT SPECTRUM L.P. 358   2011-08-22   
312-434 1 Chicago Zone 01-Calumet IL   6664 SPRINT SPECTRUM L.P. 358   2011-08-22   
312-434 2 Chicago Zone 01-Calumet IL   6664 SPRINT SPECTRUM L.P. 358   2011-08-22   
312-434 3 Chicago Zone 01-Calumet IL   6664 SPRINT SPECTRUM L.P. 358   2011-08-22   
312-434 4 Chicago Zone 01-Calumet IL   6664 SPRINT SPECTRUM L.P. 358   2011-08-22   
312-434 5 Chicago Zone 01-Calumet IL   6664 SPRINT SPECTRUM L.P. 358   2011-08-22   
312-434 6 Chicago Zone 01-Calumet IL   6664 SPRINT SPECTRUM L.P. 358   2011-08-22   
312-434 7 Chicago Zone 01-Calumet IL   6664 SPRINT SPECTRUM L.P. 358   2011-08-22   
312-434 8 Chicago Zone 01-Calumet IL   6664 SPRINT SPECTRUM L.P. 358   2011-08-22   
312-434 9 Chicago Zone 01-Calumet IL   6664 SPRINT SPECTRUM L.P. 358   2011-08-22   
312-435 A Chicago Zone 01-Wabash IL CHCGILWBDS0  9329 AMERITECH ILLINOIS 358      
312-436 A Chicago Zone 01-Canal IL CHCGILCLDS3  9329 AMERITECH ILLINOIS 358      
312-436 0 Chicago Zone 01-Canal IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-12-09   
312-436 1 Chicago Zone 01-Canal IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-12-09   
312-436 2 Chicago Zone 01-Canal IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-12-09   
312-436 3 Chicago Zone 01-Canal IL   9329 AMERITECH ILLINOIS 358      
312-436 4 Chicago Zone 01-Canal IL   9329 AMERITECH ILLINOIS 358      
312-436 5 Chicago Zone 01-Canal IL   9329 AMERITECH ILLINOIS 358      
312-436 6 Chicago Zone 01-Canal IL   9329 AMERITECH ILLINOIS 358      
312-436 7 Chicago Zone 01-Canal IL   9329 AMERITECH ILLINOIS 358      
312-436 8 Chicago Zone 01-Canal IL   9329 AMERITECH ILLINOIS 358      

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

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