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
312-957 6 Chicago Zone 01-Wabash IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-07-03   
312-957 7 Chicago Zone 01-Wabash IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-07-03   
312-957 8 Chicago Zone 01-Wabash IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-07-03   
312-957 9 Chicago Zone 01-Wabash IL   9329 AMERITECH ILLINOIS 358      
312-960 A Chicago Zone 01-Franklin IL CHCGILFRDS3  9329 AMERITECH ILLINOIS 358      
312-960 0 Chicago Zone 01-Franklin IL   9329 AMERITECH ILLINOIS 358      
312-960 1 Chicago Zone 01-Franklin IL   9329 AMERITECH ILLINOIS 358      
312-960 2 Chicago Zone 01-Franklin IL   9329 AMERITECH ILLINOIS 358      
312-960 3 Chicago Zone 01-Franklin IL   9329 AMERITECH ILLINOIS 358      
312-960 4 Chicago Zone 01-Franklin IL   9329 AMERITECH ILLINOIS 358      
312-960 5 Chicago Zone 01-Franklin IL   9329 AMERITECH ILLINOIS 358      
312-960 6 Chicago Zone 01-Franklin IL   9329 AMERITECH ILLINOIS 358      
312-960 7 Chicago Zone 01-Franklin IL   9329 AMERITECH ILLINOIS 358      
312-960 8 Chicago Zone 01-Franklin IL   9329 AMERITECH ILLINOIS 358      
312-960 9 Chicago Zone 01-Franklin IL   6529 T-MOBILE USA, INC. 358   2019-02-24   
312-961 A Chicago Zone 01-Wabash IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-962 A Chicago Zone 01-Canal IL CHCGILCNDS1  8709 GLOBAL CROSSING LOCAL SERVICES, INC.-IL 358      
312-962 0 Chicago Zone 01-Canal IL   8709 GLOBAL CROSSING LOCAL SERVICES, INC.-IL 358      
312-962 1 Chicago Zone 01-Canal IL   8709 GLOBAL CROSSING LOCAL SERVICES, INC.-IL 358      
312-962 2 Chicago Zone 01-Canal IL   8709 GLOBAL CROSSING LOCAL SERVICES, INC.-IL 358      
312-962 3 Chicago Zone 01-Canal IL   8709 GLOBAL CROSSING LOCAL SERVICES, INC.-IL 358      
312-962 4 Chicago Zone 01-Canal IL   8709 GLOBAL CROSSING LOCAL SERVICES, INC.-IL 358      
312-962 5 Chicago Zone 01-Canal IL   8709 GLOBAL CROSSING LOCAL SERVICES, INC.-IL 358      
312-962 6 Chicago Zone 01-Canal IL   8709 GLOBAL CROSSING LOCAL SERVICES, INC.-IL 358      
312-962 7 Chicago Zone 01-Canal IL   8709 GLOBAL CROSSING LOCAL SERVICES, INC.-IL 358      
312-962 8 Chicago Zone 01-Canal IL   8709 GLOBAL CROSSING LOCAL SERVICES, INC.-IL 358      
312-962 9 Chicago Zone 01-Canal IL   5562 METRO PCS, INC. 358   2014-07-21   
312-963 A Chicago Zone 01-Wabash IL BURGILAJCM1  6630 USA MOBILITY WIRELESS, INC. 358      
312-964 A Chicago Zone 01-Calumet IL   224C ONVOY, LLC 358      
312-964 0 Chicago Zone 01-Calumet IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2016-01-17   
312-964 1 Chicago Zone 01-Calumet IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2016-01-17   
312-964 2 Chicago Zone 01-Calumet IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2016-01-17   
312-964 3 Chicago Zone 01-Calumet IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2015-09-09   
312-964 4 Chicago Zone 01-Calumet IL   138G LEVEL 3 TELECOM OF ILLINOIS, LLC - IL 358   2015-09-09   
312-964 5 Chicago Zone 01-Calumet IL   516C AT&T CORP. 358   2015-09-09   
312-964 6 Chicago Zone 01-Calumet IL   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2015-09-09   
312-964 7 Chicago Zone 01-Calumet IL   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2015-09-11   
312-964 8 Chicago Zone 01-Calumet IL   224C ONVOY, LLC 358   2015-09-09   
312-964 9 Chicago Zone 01-Calumet IL   4604 FIRST COMMUNICATIONS LLC - IL 358   2015-09-11   
312-965 A Chicago Zone 01-Wabash IL ELGNIL32CM2  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
312-966 A Chicago Zone 01-Calumet IL   5562 METRO PCS, INC. 358      
312-966 0 Chicago Zone 01-Calumet IL   5562 METRO PCS, INC. 358   2015-01-09   
312-966 1 Chicago Zone 01-Calumet IL   5562 METRO PCS, INC. 358   2015-01-09   
312-966 2 Chicago Zone 01-Calumet IL   5562 METRO PCS, INC. 358   2015-01-09   
312-966 3 Chicago Zone 01-Calumet IL   4717 PAETEC COMMUNICATIONS, INC. - IL 358   2015-01-12   
312-966 4 Chicago Zone 01-Calumet IL   4717 PAETEC COMMUNICATIONS, INC. - IL 358   2015-01-12   
312-966 5 Chicago Zone 01-Calumet IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2015-01-12   
312-966 6 Chicago Zone 01-Calumet IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2015-02-07   
312-966 7 Chicago Zone 01-Calumet IL   5562 METRO PCS, INC. 358   2015-01-09   
312-966 8 Chicago Zone 01-Calumet IL   138G LEVEL 3 TELECOM OF ILLINOIS, LLC - IL 358   2015-02-13   

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

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