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
312-989 6 Chicago Zone 01-Calumet IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2015-07-25   
312-989 7 Chicago Zone 01-Calumet IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2015-07-25   
312-989 8 Chicago Zone 01-Calumet IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2015-07-25   
312-989 9 Chicago Zone 01-Calumet IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2015-07-25   
312-990 A Hinsdale IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-991 A Wheeling IL SCBGILRRGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-992 A Chicago Zone 01-Franklin IL CHCGILFRDS1  9329 AMERITECH ILLINOIS 358      
312-993 A Chicago Zone 01-Canal IL CHCGILCLDS0  9329 AMERITECH ILLINOIS 358      
312-994 A Chicago Zone 01-Wabash IL CHCGILWUDS0  7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358      
312-994 0 Chicago Zone 01-Wabash IL   7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358      
312-994 1 Chicago Zone 01-Wabash IL   7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358   2009-08-25   
312-994 2 Chicago Zone 01-Wabash IL   7721 BROADWING COMMUNICATIONS, LLC - IL 358   2002-09-16   
312-994 3 Chicago Zone 01-Wabash IL   7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358   2010-04-22   
312-994 4 Chicago Zone 01-Wabash IL   7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358   2009-08-28   
312-994 5 Chicago Zone 01-Wabash IL   7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358      
312-994 6 Chicago Zone 01-Wabash IL   4604 FIRST COMMUNICATIONS LLC - IL 358   2001-06-15   
312-994 7 Chicago Zone 01-Wabash IL   4604 FIRST COMMUNICATIONS LLC - IL 358   2000-08-04   
312-994 8 Chicago Zone 01-Wabash IL   7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358   2007-05-18   
312-994 9 Chicago Zone 01-Wabash IL   7765 OVATION COMMUNICATIONS OF ILLINOIS, INC. 358   2000-06-29   
312-995 A Chicago Zone 01-Calumet IL   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
312-995 0 Chicago Zone 01-Calumet IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2014-10-14   
312-995 1 Chicago Zone 01-Calumet IL   4604 FIRST COMMUNICATIONS LLC - IL 358   2014-10-14   
312-995 2 Chicago Zone 01-Calumet IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2014-10-14   
312-995 3 Chicago Zone 01-Calumet IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2014-10-14   
312-995 4 Chicago Zone 01-Calumet IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2014-10-14   
312-995 5 Chicago Zone 01-Calumet IL   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2014-10-13   
312-995 6 Chicago Zone 01-Calumet IL   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2014-10-13   
312-995 7 Chicago Zone 01-Calumet IL   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2014-10-13   
312-995 8 Chicago Zone 01-Calumet IL   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2014-10-13   
312-995 9 Chicago Zone 01-Calumet IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2014-10-14   
312-996 A Chicago Zone 01-Monroe IL CHCGILMODS1  9329 AMERITECH ILLINOIS 358      
312-997 A Chicago Zone 01-Monroe IL CHCGILMODS1  9329 AMERITECH ILLINOIS 358      
312-997 0 Chicago Zone 01-Monroe IL   9329 AMERITECH ILLINOIS 358      
312-997 1 Chicago Zone 01-Monroe IL   9329 AMERITECH ILLINOIS 358      
312-997 2 Chicago Zone 01-Monroe IL   9329 AMERITECH ILLINOIS 358      
312-997 3 Chicago Zone 01-Monroe IL   9329 AMERITECH ILLINOIS 358      
312-997 4 Chicago Zone 01-Monroe IL   9329 AMERITECH ILLINOIS 358      
312-997 5 Chicago Zone 01-Monroe IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2014-05-03   
312-997 6 Chicago Zone 01-Monroe IL   9329 AMERITECH ILLINOIS 358      
312-997 7 Chicago Zone 01-Monroe IL   9329 AMERITECH ILLINOIS 358      
312-997 8 Chicago Zone 01-Monroe IL   9329 AMERITECH ILLINOIS 358      
312-997 9 Chicago Zone 01-Monroe IL   9329 AMERITECH ILLINOIS 358      
312-998 A Chicago Zone 01-Calumet IL   7575 CENTURYLINK COMMUNICATIONS LLC 358      
312-998 0 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2014-10-10   
312-998 1 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2014-10-10   
312-998 2 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2014-10-10   
312-998 3 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2014-10-10   
312-998 4 Chicago Zone 01-Calumet IL   7575 CENTURYLINK COMMUNICATIONS LLC 358   2014-10-03   
312-998 5 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2014-10-10   
312-998 6 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2014-10-10   

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Last updated: Wed, 05 Feb 2020 02:15:44 UTC

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