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
312-626 4 Chicago Zone 01-Calumet IL   224C ONVOY, LLC 358   2013-08-15   
312-626 5 Chicago Zone 01-Calumet IL   224C ONVOY, LLC 358   2013-08-15   
312-626 6 Chicago Zone 01-Calumet IL   224C ONVOY, LLC 358   2013-08-15   
312-626 7 Chicago Zone 01-Calumet IL   224C ONVOY, LLC 358   2013-08-15   
312-626 8 Chicago Zone 01-Calumet IL   224C ONVOY, LLC 358   2013-08-15   
312-626 9 Chicago Zone 01-Calumet IL   224C ONVOY, LLC 358   2013-08-15   
312-627 A Chicago Zone 01-Canal IL CHCGILCLDS0  9329 AMERITECH ILLINOIS 358      
312-627 0 Chicago Zone 01-Canal IL   9329 AMERITECH ILLINOIS 358      
312-627 1 Chicago Zone 01-Canal IL   9329 AMERITECH ILLINOIS 358      
312-627 2 Chicago Zone 01-Canal IL   9329 AMERITECH ILLINOIS 358      
312-627 3 Chicago Zone 01-Canal IL   9329 AMERITECH ILLINOIS 358      
312-627 4 Chicago Zone 01-Canal IL   9329 AMERITECH ILLINOIS 358      
312-627 5 Chicago Zone 01-Canal IL   9329 AMERITECH ILLINOIS 358      
312-627 6 Chicago Zone 01-Canal IL   9329 AMERITECH ILLINOIS 358      
312-627 7 Chicago Zone 01-Canal IL   9329 AMERITECH ILLINOIS 358      
312-627 8 Chicago Zone 01-Canal IL   9329 AMERITECH ILLINOIS 358      
312-627 9 Chicago Zone 01-Canal IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-09-25   
312-628 A Chicago Zone 01-Franklin IL CHCGILTCDS0  7056 XO ILLINOIS, INC. 358      
312-629 A Chicago Zone 01-Franklin IL CHCGILFRDS0  9329 AMERITECH ILLINOIS 358      
312-630 A Chicago Zone 01-Franklin IL CHCGILFRDS0  9329 AMERITECH ILLINOIS 358      
312-631 A Chicago Zone 01-Calumet IL   7575 CENTURYLINK COMMUNICATIONS LLC 358   2013-04-30   
312-631 0 Chicago Zone 01-Calumet IL   224C ONVOY, LLC 358   2013-05-24   
312-631 1 Chicago Zone 01-Calumet IL   224C ONVOY, LLC 358   2013-05-24   
312-631 2 Chicago Zone 01-Calumet IL   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2013-07-05   
312-631 3 Chicago Zone 01-Calumet IL   516C AT&T CORP. 358   2013-07-03   
312-631 4 Chicago Zone 01-Calumet IL   6664 SPRINT SPECTRUM L.P. 358   2013-05-01   
312-631 5 Chicago Zone 01-Calumet IL   6664 SPRINT SPECTRUM L.P. 358   2013-05-01   
312-631 6 Chicago Zone 01-Calumet IL   6664 SPRINT SPECTRUM L.P. 358   2013-05-01   
312-631 7 Chicago Zone 01-Calumet IL   7575 CENTURYLINK COMMUNICATIONS LLC 358   2013-05-31   
312-631 8 Chicago Zone 01-Calumet IL   6664 SPRINT SPECTRUM L.P. 358   2013-05-01   
312-631 9 Chicago Zone 01-Calumet IL   6664 SPRINT SPECTRUM L.P. 358   2013-05-01   
312-632 A Chicago Zone 01-Canal IL CHCGILCLDS0  9329 AMERITECH ILLINOIS 358      
312-632 0 Chicago Zone 01-Canal IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2011-09-25   
312-632 1 Chicago Zone 01-Canal IL   9329 AMERITECH ILLINOIS 358      
312-632 2 Chicago Zone 01-Canal IL   9329 AMERITECH ILLINOIS 358      
312-632 3 Chicago Zone 01-Canal IL   5562 METRO PCS, INC. 358   2016-12-29   
312-632 4 Chicago Zone 01-Canal IL   5562 METRO PCS, INC. 358   2016-12-29   
312-632 5 Chicago Zone 01-Canal IL   4717 PAETEC COMMUNICATIONS, INC. - IL 358   2016-12-27   
312-632 6 Chicago Zone 01-Canal IL   4717 PAETEC COMMUNICATIONS, INC. - IL 358   2016-12-27   
312-632 7 Chicago Zone 01-Canal IL   5562 METRO PCS, INC. 358   2016-12-29   
312-632 8 Chicago Zone 01-Canal IL   5562 METRO PCS, INC. 358   2016-12-29   
312-632 9 Chicago Zone 01-Canal IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2011-08-07   
312-633 A Chicago Zone 01-Monroe IL CHCGILMODS0  9329 AMERITECH ILLINOIS 358      
312-634 A Chicago Zone 01-Franklin IL CHCGILFRDS1  9329 AMERITECH ILLINOIS 358      
312-635 A Chicago Zone 01-Wabash IL CHCGILCNDS1  8709 GLOBAL CROSSING LOCAL SERVICES, INC.-IL 358      
312-635 0 Chicago Zone 01-Wabash IL   8709 GLOBAL CROSSING LOCAL SERVICES, INC.-IL 358      
312-635 1 Chicago Zone 01-Wabash IL   8709 GLOBAL CROSSING LOCAL SERVICES, INC.-IL 358      
312-635 2 Chicago Zone 01-Wabash IL   8709 GLOBAL CROSSING LOCAL SERVICES, INC.-IL 358      
312-635 3 Chicago Zone 01-Wabash IL   4604 FIRST COMMUNICATIONS LLC - IL 358   2014-06-15   
312-635 4 Chicago Zone 01-Wabash IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      

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

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