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
312-268 7 Chicago Zone 01-Superior IL   7721 BROADWING COMMUNICATIONS, LLC - IL 358      
312-268 8 Chicago Zone 01-Superior IL   7721 BROADWING COMMUNICATIONS, LLC - IL 358      
312-268 9 Chicago Zone 01-Superior IL   7721 BROADWING COMMUNICATIONS, LLC - IL 358      
312-269 A Chicago Zone 01-Franklin IL CHCGILFRDS3  9329 AMERITECH ILLINOIS 358      
312-270 A Chicago Zone 01-Calumet IL   5562 METRO PCS, INC. 358      
312-270 0 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2017-03-10   
312-270 1 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2017-03-10   
312-270 2 Chicago Zone 01-Calumet IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2017-03-10   
312-270 3 Chicago Zone 01-Calumet IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2017-04-07   
312-270 4 Chicago Zone 01-Calumet IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2017-04-07   
312-270 5 Chicago Zone 01-Calumet IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2017-04-07   
312-270 6 Chicago Zone 01-Calumet IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2017-04-07   
312-270 7 Chicago Zone 01-Calumet IL   946G RCLEC, INC. - IL 358   2017-03-10   
312-270 8 Chicago Zone 01-Calumet IL   073H TELNYX LLC 358   2017-03-17   
312-270 9 Chicago Zone 01-Calumet IL   5562 METRO PCS, INC. 358   2017-03-09   
312-271 A Chicago Zone 01-Wabash IL BURGILAJCM1  6630 USA MOBILITY WIRELESS, INC. 358      
312-272 A Chicago Zone 01-Calumet IL BURGILAJCM1  6630 USA MOBILITY WIRELESS, INC. 358      
312-273 A Chicago Zone 01-Calumet IL ELGNIL32CM2  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2011-11-12   
312-273 0 Chicago Zone 01-Calumet IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2011-11-12   
312-273 1 Chicago Zone 01-Calumet IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2013-03-19   
312-273 2 Chicago Zone 01-Calumet IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2012-07-22   
312-273 3 Chicago Zone 01-Calumet IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2011-11-15   
312-273 4 Chicago Zone 01-Calumet IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2013-03-19   
312-273 5 Chicago Zone 01-Calumet IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2013-03-19   
312-273 6 Chicago Zone 01-Calumet IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2011-11-15   
312-273 7 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2011-11-15   
312-273 8 Chicago Zone 01-Calumet IL   6529 T-MOBILE USA, INC. 358   2011-11-15   
312-273 9 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-12-15   
312-274 A Chicago Zone 01-Superior IL CHCGILSUDS2  9329 AMERITECH ILLINOIS 358      
312-275 A Chicago Zone 01-Monroe IL CHCHILLEDS0  8950 ALLEGIANCE TELECOM, INC. - IL 358      
312-276 A Chicago Zone 01-Illinois Dearborn IL CHCHILLEDS0  8950 ALLEGIANCE TELECOM, INC. - IL 358      
312-277 A Chicago Zone 01-Canal IL CHCHILLEDS0  8950 ALLEGIANCE TELECOM, INC. - IL 358      
312-278 A Chicago Zone 01-Canal IL EKGVILAADS0  7721 BROADWING COMMUNICATIONS, LLC - IL 358      
312-278 0 Chicago Zone 01-Canal IL   7721 BROADWING COMMUNICATIONS, LLC - IL 358      
312-278 1 Chicago Zone 01-Canal IL   7721 BROADWING COMMUNICATIONS, LLC - IL 358      
312-278 2 Chicago Zone 01-Canal IL   7721 BROADWING COMMUNICATIONS, LLC - IL 358      
312-278 3 Chicago Zone 01-Canal IL   7721 BROADWING COMMUNICATIONS, LLC - IL 358      
312-278 4 Chicago Zone 01-Canal IL   7721 BROADWING COMMUNICATIONS, LLC - IL 358      
312-278 5 Chicago Zone 01-Canal IL   7721 BROADWING COMMUNICATIONS, LLC - IL 358   2000-12-29   
312-278 6 Chicago Zone 01-Canal IL   9329 AMERITECH ILLINOIS 358   2000-09-28   
312-278 7 Chicago Zone 01-Canal IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-09-25   
312-278 8 Chicago Zone 01-Canal IL   9329 AMERITECH ILLINOIS 358   2000-09-28   
312-278 9 Chicago Zone 01-Canal IL   7721 BROADWING COMMUNICATIONS, LLC - IL 358      
312-279 A Chicago Zone 01-Monroe IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-280 A Chicago Zone 01-Superior IL CHCGILSUDS2  9329 AMERITECH ILLINOIS 358      
312-281 A Chicago Zone 01-Franklin IL CHCGILCNDS1  8709 GLOBAL CROSSING LOCAL SERVICES, INC.-IL 358      
312-281 0 Chicago Zone 01-Franklin IL   8709 GLOBAL CROSSING LOCAL SERVICES, INC.-IL 358      
312-281 1 Chicago Zone 01-Franklin IL   8709 GLOBAL CROSSING LOCAL SERVICES, INC.-IL 358      
312-281 2 Chicago Zone 01-Franklin IL   8709 GLOBAL CROSSING LOCAL SERVICES, INC.-IL 358      
312-281 3 Chicago Zone 01-Franklin IL   9329 AMERITECH ILLINOIS 358   2000-09-01   

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Last updated: Tue, 31 Dec 2019 02:37:20 UTC

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