Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: CHCGILGMDS7

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
312-756 8 Chicago Zone 01-Canal IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2018-09-01   
312-776 2 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2019-05-24   
312-776 3 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2019-05-24   
312-779 2 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2019-07-15   
312-789 4 Chicago Zone 01-Wabash IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2011-04-13   
312-789 5 Chicago Zone 01-Wabash IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2008-05-30   
312-799 7 Chicago Zone 01-Superior IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2000-08-29   
312-800 1 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2013-01-27   
312-800 2 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2013-01-27   
312-818 4 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2013-10-04   
312-818 5 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2013-10-04   
312-824 0 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2016-08-05   
312-854 0 Chicago Zone 01-Franklin IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2008-07-02   
312-854 1 Chicago Zone 01-Franklin IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2008-07-02   
312-854 2 Chicago Zone 01-Franklin IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2008-07-02   
312-871 3 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2016-06-25   
312-872 A Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-872 5 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2018-09-02   
312-878 1 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2008-06-09   
312-878 2 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2008-06-12   
312-878 7 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2008-06-12   
312-878 8 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2008-06-12   
312-881 6 Chicago Zone 01-Canal IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2001-12-26   
312-881 7 Chicago Zone 01-Canal IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2000-07-20   
312-881 8 Chicago Zone 01-Canal IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2000-07-20   
312-884 2 Chicago Zone 01-Franklin IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2000-08-17   
312-884 7 Chicago Zone 01-Franklin IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2000-06-05   
312-889 9 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2015-08-25   
312-893 A Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-893 0 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-893 1 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-893 2 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-893 3 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-893 4 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-893 5 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-893 6 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-893 7 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-893 8 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-895 A Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-896 A Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-932 5 Chicago Zone 01-Superior IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2001-12-06   
312-932 6 Chicago Zone 01-Superior IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2000-07-07   
312-948 3 Chicago Zone 01-Monroe IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2002-06-02   
312-948 4 Chicago Zone 01-Monroe IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2002-06-03   
312-948 6 Chicago Zone 01-Monroe IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2002-06-03   
312-948 7 Chicago Zone 01-Monroe IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2002-06-03   
312-948 9 Chicago Zone 01-Monroe IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2011-08-06   
312-957 4 Chicago Zone 01-Wabash IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-07-03   
312-957 5 Chicago Zone 01-Wabash IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-07-03   
312-957 6 Chicago Zone 01-Wabash IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-07-03   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 >>

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.