Local Calling Guide

Area code/prefix search

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OCN: 7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
312-547 6 Chicago Zone 01-Wabash IL CHCGIL24DS0  358   2008-11-01   
312-547 7 Chicago Zone 01-Wabash IL CHCGIL24DS0  358   2008-11-01   
312-547 8 Chicago Zone 01-Wabash IL CHCGIL24DS0  358   2008-11-01   
312-548 4 Chicago Zone 01-Calumet IL OKBRILOAXEX  358   2007-10-20   
312-548 5 Chicago Zone 01-Calumet IL OKBRILOAXEX  358   2007-10-20   
312-549 A Chicago Zone 01-Calumet IL CHCGILCLDS7  358      
312-549 3 Chicago Zone 01-Calumet IL CHCGILCLDS7  358   2015-11-23   
312-549 4 Chicago Zone 01-Calumet IL CHCGILCLDS7  358   2015-11-23   
312-549 5 Chicago Zone 01-Calumet IL CHCGILCLDS7  358   2015-11-23   
312-549 6 Chicago Zone 01-Calumet IL CHCGILCLDS7  358   2015-11-23   
312-549 7 Chicago Zone 01-Calumet IL CHCGILCLDS7  358   2015-11-23   
312-569 1 Chicago Zone 01-Monroe IL OKBRILOAXEX  358   2002-06-24   
312-579 1 Chicago Zone 01-Calumet IL OKBRILOAXEX  358   2017-11-06   
312-586 3 Chicago Zone 01-Calumet IL CHCGILCGDS1  358   2016-07-01   
312-586 4 Chicago Zone 01-Calumet IL CHCGILCGDS1  358   2016-07-01   
312-596 A Chicago Zone 01-Canal IL CHCGILCLDS7  358      
312-614 3 Chicago Zone 01-Calumet IL CHCGILCLDS7  358   2012-11-23   
312-614 4 Chicago Zone 01-Calumet IL CHCGILCLDS7  358   2012-11-23   
312-619 4 Chicago Zone 01-Calumet IL CHCGILCLDS7  358   2012-11-04   
312-619 5 Chicago Zone 01-Calumet IL CHCGILCLDS7  358   2012-11-04   
312-631 2 Chicago Zone 01-Calumet IL CHCGILCLDS7  358   2013-07-05   
312-660 A Chicago Zone 01-Wabash IL CHCGIL24DS0  358      
312-665 A Chicago Zone 01-Wabash IL CHCGIL24DS0  358      
312-702 8 Chicago Zone 01-Calumet IL CHCGILCGDS1  358   2013-04-04   
312-705 A Chicago Zone 01-Wabash IL CHCGIL24DS0  358      
312-706 A Chicago Zone 01-Wabash IL CHCGIL24DS0  358      
312-725 1 Chicago Zone 01-Calumet IL CHCGILCLDS7  358   2009-08-24   
312-725 5 Chicago Zone 01-Calumet IL CHCGILCLDS7  358   2009-08-24   
312-725 7 Chicago Zone 01-Calumet IL CHCGILCLDS7  358   2009-08-24   
312-728 1 Chicago Zone 01-Calumet IL OKBRILOAXEX  358   2018-04-02   
312-728 5 Chicago Zone 01-Calumet IL OKBRILOAXEX  358   2018-04-19   
312-728 6 Chicago Zone 01-Calumet IL OKBRILOAXEX  358   2018-04-19   
312-734 A Chicago Zone 01-Calumet IL CHCGILCGDS1  358      
312-734 2 Chicago Zone 01-Calumet IL CHCGILCGDS1  358   2015-11-01   
312-734 3 Chicago Zone 01-Calumet IL CHCGILCGDS1  358   2015-11-01   
312-734 4 Chicago Zone 01-Calumet IL CHCGILCGDS1  358   2015-11-01   
312-734 5 Chicago Zone 01-Calumet IL CHCGILCGDS1  358   2015-11-01   
312-734 6 Chicago Zone 01-Calumet IL CHCGILCGDS1  358   2015-11-01   
312-734 7 Chicago Zone 01-Calumet IL CHCGILCGDS1  358   2015-11-01   
312-734 8 Chicago Zone 01-Calumet IL CHCGILCGDS1  358   2015-11-01   
312-736 A Chicago Zone 01-Calumet IL OKBRILOAXEX  358      
312-736 5 Chicago Zone 01-Calumet IL OKBRILOAXEX  358   2017-12-22   
312-736 6 Chicago Zone 01-Calumet IL OKBRILOAXEX  358   2017-12-22   
312-741 6 Chicago Zone 01-Calumet IL OKBRILOAXEX  358   2019-06-20   
312-741 7 Chicago Zone 01-Calumet IL OKBRILOAXEX  358   2018-09-24   
312-754 3 Chicago Zone 01-Calumet IL CHCGILCLDS7  358   2013-06-24   
312-761 6 Chicago Zone 01-Calumet IL OKBRILOAXEX  358   2018-11-29   
312-761 7 Chicago Zone 01-Calumet IL OKBRILOAXEX  358   2018-12-14   
312-764 A Chicago Zone 01-Calumet IL CHCGILCGDS1  358      
312-764 4 Chicago Zone 01-Calumet IL CHCGILCGDS1  358   2016-12-05   

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Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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