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
312-315 A Chicago Zone 01-Wabash IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-316 A Chicago Zone 01-Wabash IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-317 A Wheeling IL SCBGILRRGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-317 9 Wheeling IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-318 A La Grange IL HCHLILMTCM2  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
312-318 0 La Grange IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
312-318 1 La Grange IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
312-319 A Chicago Zone 01-Calumet IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2017-06-19   
312-319 0 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2017-06-20   
312-319 1 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2017-06-20   
312-319 2 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2017-06-20   
312-319 3 Chicago Zone 01-Calumet IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2017-06-19   
312-319 4 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2017-06-20   
312-319 5 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2017-06-20   
312-319 6 Chicago Zone 01-Calumet IL   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2017-06-20   
312-319 7 Chicago Zone 01-Calumet IL   4604 FIRST COMMUNICATIONS LLC - IL 358   2017-06-20   
312-319 8 Chicago Zone 01-Calumet IL   224C ONVOY, LLC 358   2017-06-20   
312-319 9 Chicago Zone 01-Calumet IL   057H LOCAL ACCESS LLC - IL 358   2017-07-06   
312-320 A Chicago Zone 01-Wabash IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-321 A Chicago Zone 01-Illinois Dearborn IL CHCGILIDDS0  9329 AMERITECH ILLINOIS 358      
312-322 A Chicago Zone 01-Wabash IL CHCGILWBDS3  9329 AMERITECH ILLINOIS 358      
312-323 A Chicago Zone 01-Wabash IL CHCGILBWCM2  9748 AMERICAN MESSAGING SERVICES, LLC 358      
312-324 A Chicago Zone 01-Calumet IL CHCGILGMRS0  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-324 0 Chicago Zone 01-Calumet IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-01-30   
312-324 1 Chicago Zone 01-Calumet IL   9329 AMERITECH ILLINOIS 358   2002-06-05   
312-324 2 Chicago Zone 01-Calumet IL   9329 AMERITECH ILLINOIS 358   2002-06-05   
312-324 3 Chicago Zone 01-Calumet IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-01-30   
312-324 4 Chicago Zone 01-Calumet IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-08-14   
312-324 5 Chicago Zone 01-Calumet IL   7721 BROADWING COMMUNICATIONS, LLC - IL 358   2002-05-21   
312-324 6 Chicago Zone 01-Calumet IL   7721 BROADWING COMMUNICATIONS, LLC - IL 358   2002-05-21   
312-324 7 Chicago Zone 01-Calumet IL   7721 BROADWING COMMUNICATIONS, LLC - IL 358   2002-05-21   
312-324 8 Chicago Zone 01-Calumet IL   9329 AMERITECH ILLINOIS 358   2002-06-05   
312-324 9 Chicago Zone 01-Calumet IL   9329 AMERITECH ILLINOIS 358   2002-06-05   
312-325 A Chicago Zone 01-Franklin IL CHCGILFRDS0  9329 AMERITECH ILLINOIS 358      
312-325 0 Chicago Zone 01-Franklin IL   9329 AMERITECH ILLINOIS 358   2003-07-25   
312-325 1 Chicago Zone 01-Franklin IL   9329 AMERITECH ILLINOIS 358   2003-07-25   
312-325 2 Chicago Zone 01-Franklin IL   9329 AMERITECH ILLINOIS 358   2003-07-25   
312-325 3 Chicago Zone 01-Franklin IL   9329 AMERITECH ILLINOIS 358   2003-07-25   
312-325 4 Chicago Zone 01-Franklin IL   9329 AMERITECH ILLINOIS 358   2003-07-25   
312-325 5 Chicago Zone 01-Franklin IL   9329 AMERITECH ILLINOIS 358   2003-07-25   
312-325 6 Chicago Zone 01-Franklin IL   9329 AMERITECH ILLINOIS 358   2003-07-25   
312-325 7 Chicago Zone 01-Franklin IL   9329 AMERITECH ILLINOIS 358   2003-07-25   
312-325 8 Chicago Zone 01-Franklin IL   9329 AMERITECH ILLINOIS 358   2003-07-25   
312-325 9 Chicago Zone 01-Franklin IL   9329 AMERITECH ILLINOIS 358   2003-07-25   
312-326 A Chicago Zone 01-Calumet IL CHCGILCADS0  9329 AMERITECH ILLINOIS 358      
312-327 A Chicago Zone 01-Franklin IL CHCGILTCDS0  7056 XO ILLINOIS, INC. 358      
312-328 A Chicago Zone 01-Calumet IL CHCGILCADS0  9329 AMERITECH ILLINOIS 358      
312-329 A Chicago Zone 01-Illinois Dearborn IL CHCGILIDDS2  9329 AMERITECH ILLINOIS 358      
312-330 A Chicago Zone 01-Wabash IL BURGILAHGT3  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
312-331 A Wheeling IL SCBGILRRGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      

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

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