Local Calling Guide

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Chicago Zone 01-Calumet, IL

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
312-241 8   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2011-10-14   
312-241 9   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2011-10-14   
312-247 A CHCGILWUX6X  460K FIRST COMMUNICATIONS, LLC 358      
312-247 0   460K FIRST COMMUNICATIONS, LLC 358   2004-05-28   
312-247 1   460K FIRST COMMUNICATIONS, LLC 358   2004-05-28   
312-247 2   460K FIRST COMMUNICATIONS, LLC 358   2004-05-28   
312-247 3   460K FIRST COMMUNICATIONS, LLC 358   2004-05-28   
312-247 4   460K FIRST COMMUNICATIONS, LLC 358   2004-05-28   
312-247 5   460K FIRST COMMUNICATIONS, LLC 358   2004-05-28   
312-247 6   460K FIRST COMMUNICATIONS, LLC 358   2004-05-28   
312-247 7   460K FIRST COMMUNICATIONS, LLC 358   2004-05-28   
312-247 8   460K FIRST COMMUNICATIONS, LLC 358   2004-05-28   
312-247 9   460K FIRST COMMUNICATIONS, LLC 358   2004-05-28   
312-248 A ELGNILOTGT5  5562 METROPCS, INC. 358      
312-248 0   984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-08-30   
312-248 1   984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-08-30   
312-248 2   984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-08-30   
312-248 3   984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-08-30   
312-248 4   984E BANDWIDTH.COM CLEC, LLC - IL 358   2014-08-30   
312-248 5   5562 METROPCS, INC. 358   2014-08-22   
312-248 6   224C ONVOY, LLC 358   2015-04-27   
312-248 7   224C ONVOY, LLC 358   2015-04-27   
312-248 8   318J COMCAST IP PHONE, LLC 358   2015-04-21   
312-248 9   984E BANDWIDTH.COM CLEC, LLC - IL 358   2015-05-11   
312-250 A LBRDILGOAMD  6630 USA MOBILITY WIRELESS, INC. 358      
312-252 A BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-252 0   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-252 1   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-252 2   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-252 3   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-252 4   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-252 5   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-252 6   9329 ILLINOIS BELL TEL CO 358   2002-10-14   
312-252 7   9329 ILLINOIS BELL TEL CO 358   2003-03-07   
312-252 8   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-252 9   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-253 A BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-253 0   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-253 1   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-253 2   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-253 3   829J PAETEC ITEL, LLC 358   2009-02-05   
312-253 4   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-253 5   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2010-06-10   
312-253 6   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2010-06-10   
312-253 7   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-253 8   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-253 9   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-254 A BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-254 0   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-254 1   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-254 2   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-254 3   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-254 4   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-254 5   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-254 6   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2010-08-16   
312-254 7   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2010-08-16   
312-254 8   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2008-10-14   
312-254 9   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-256 A BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-256 0   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-256 1   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2010-08-16   
312-256 2   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-256 3   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2010-08-16   
312-256 4   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2010-03-01   
312-256 5   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2010-03-01   
312-256 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2010-03-01   
312-256 7   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2010-03-01   
312-256 8   460K FIRST COMMUNICATIONS, LLC 358   2009-01-31   
312-256 9   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-257 A RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
312-257 0   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2011-10-16   
312-257 1   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2012-06-17   
312-257 2   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2011-10-18   
312-257 3   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2011-10-18   
312-257 4   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2012-06-24   
312-257 5   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2012-06-24   
312-257 6   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2012-07-01   
312-257 7   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2012-06-24   
312-257 8   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2012-06-24   
312-257 9   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2012-07-01   
312-261 A CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-261 0   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2010-10-02   
312-261 1   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-261 2   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-261 3   460K FIRST COMMUNICATIONS, LLC 358      
312-261 4   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-261 5   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-261 6   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-261 7   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-261 8   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-261 9   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-262 A DWGVILMCPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-262 0   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-262 1   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
312-262 2   224C ONVOY, LLC 358   2010-08-26   
312-262 3   224C ONVOY, LLC 358   2009-03-04   
312-262 4   224C ONVOY, LLC 358   2009-03-04   
312-262 5   224C ONVOY, LLC 358   2009-03-04   
312-262 6   224C ONVOY, LLC 358   2009-03-04   
312-262 7   224C ONVOY, LLC 358   2010-08-26   

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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