Local Calling Guide

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
312-260 8 Chicago Zone 01-Monroe IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-260 9 Chicago Zone 01-Monroe IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-262 0 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-262 1 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-270 2 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2017-03-10   
312-275 A Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-276 A Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-277 A Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-279 A Chicago Zone 01-Monroe IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-288 A Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-288 0 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-288 2 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-288 3 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-288 4 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-288 7 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-319 A Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-319 3 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2017-06-19   
312-327 A Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-377 A Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-379 2 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-445 2 Chicago Zone 01-Superior IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2008-04-17   
312-445 3 Chicago Zone 01-Superior IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2008-04-16   
312-462 9 Chicago Zone 01-Franklin IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2009-06-16   
312-470 A Chicago Zone 01-Monroe IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-470 0 Chicago Zone 01-Monroe IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-470 1 Chicago Zone 01-Monroe IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-470 2 Chicago Zone 01-Monroe IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-470 3 Chicago Zone 01-Monroe IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-470 4 Chicago Zone 01-Monroe IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-470 5 Chicago Zone 01-Monroe IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-470 7 Chicago Zone 01-Monroe IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-470 8 Chicago Zone 01-Monroe IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-470 9 Chicago Zone 01-Monroe IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-471 A Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-471 3 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2015-08-10   
312-471 4 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2015-08-10   
312-471 5 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2015-08-10   
312-488 5 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2010-02-14   
312-488 6 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2010-02-14   
312-488 7 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2010-02-14   
312-517 A Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-517 3 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2015-03-26   
312-517 4 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2015-03-26   
312-525 A Chicago Zone 01-Wabash IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-525 2 Chicago Zone 01-Wabash IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-525 3 Chicago Zone 01-Wabash IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-525 4 Chicago Zone 01-Wabash IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-525 5 Chicago Zone 01-Wabash IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-525 6 Chicago Zone 01-Wabash IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-525 7 Chicago Zone 01-Wabash IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-525 8 Chicago Zone 01-Wabash IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-525 9 Chicago Zone 01-Wabash IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-528 2 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   1999-11-30   
312-585 A Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-585 3 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2013-06-07   
312-585 4 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2013-06-07   
312-594 A Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-601 A Chicago Zone 01-Monroe IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-604 A Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-604 0 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-604 1 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-604 2 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-604 3 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-604 4 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2004-11-27   
312-604 7 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-604 8 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-604 9 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-619 3 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2012-10-29   
312-624 6 Chicago Zone 01-Canal IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2004-07-04   
312-624 7 Chicago Zone 01-Canal IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2004-07-04   
312-628 A Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-650 7 Chicago Zone 01-Lakeshore IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2004-11-27   
312-650 8 Chicago Zone 01-Lakeshore IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2004-11-27   
312-668 3 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2019-09-14   
312-702 A Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-702 3 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2013-02-14   
312-702 4 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2013-02-15   
312-736 3 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2018-08-17   
312-736 4 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2018-08-17   
312-763 4 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2014-06-27   
312-763 5 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2014-06-27   
312-779 3 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2019-07-13   
312-792 A Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-792 3 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2015-01-11   
312-794 7 Chicago Zone 01-Canal IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2005-01-18   
312-794 8 Chicago Zone 01-Canal IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2005-01-18   
312-801 7 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2013-08-12   
312-809 A Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-809 3 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2013-12-09   
312-809 4 Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2013-12-09   
312-821 0 Chicago Zone 01-Superior IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-821 1 Chicago Zone 01-Superior IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-821 2 Chicago Zone 01-Superior IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-821 3 Chicago Zone 01-Superior IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-821 4 Chicago Zone 01-Superior IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-821 5 Chicago Zone 01-Superior IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-821 6 Chicago Zone 01-Superior IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-821 7 Chicago Zone 01-Superior IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-821 8 Chicago Zone 01-Superior IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-824 A Chicago Zone 01-Calumet IL 7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      

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Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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