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 49 50 51 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
224-772 8 North Chicago IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2004-05-15   
224-778 A Libertyville IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
224-778 4 Libertyville IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-05-09   
224-788 A Antioch IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
224-803 2 Northbrook IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2012-08-03   
224-803 3 Northbrook IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2012-12-09   
224-804 9 Deerfield IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2014-04-19   
224-836 0 Palatine IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-04-06   
224-836 4 Palatine IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-01-15   
224-836 5 Palatine IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-01-15   
224-836 7 Palatine IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2012-03-04   
224-836 9 Palatine IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2008-11-19   
224-842 4 Libertyville IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2019-12-13   
224-856 3 Elgin IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2008-05-13   
224-857 2 Arlington Heights IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2015-09-05   
224-857 5 Arlington Heights IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2016-01-07   
224-875 6 Elk Grove IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2012-11-09   
224-877 3 Elk Grove IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2016-04-04   
224-880 6 Lake Forest IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2012-01-06   
224-888 A Cary IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
224-888 2 Cary IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2012-01-06   
224-900 2 Wheeling IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2012-02-20   
224-935 4 Skokie IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2010-10-17   
224-935 9 Skokie IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2012-01-22   
224-944 5 Waukegan IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-10-01   
224-993 A Wauconda IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
224-993 2 Wauconda IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-05-13   
224-993 3 Wauconda IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2011-11-23   
224-999 A Evanston IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
262-222 A North Antioch WI 5489 LEVEL 3 COMMUNICATIONS, LLC - WI 358      
262-222 0 North Antioch WI 5489 LEVEL 3 COMMUNICATIONS, LLC - WI 358      
262-222 1 North Antioch WI 5489 LEVEL 3 COMMUNICATIONS, LLC - WI 358      
262-222 2 North Antioch WI 5489 LEVEL 3 COMMUNICATIONS, LLC - WI 358      
262-435 A North Antioch WI 5489 LEVEL 3 COMMUNICATIONS, LLC - WI 358      
262-435 0 North Antioch WI 5489 LEVEL 3 COMMUNICATIONS, LLC - WI 358   2005-02-16   
262-435 2 North Antioch WI 5489 LEVEL 3 COMMUNICATIONS, LLC - WI 358   2005-02-16   
262-435 4 North Antioch WI 5489 LEVEL 3 COMMUNICATIONS, LLC - WI 358      
309-374 6 Keithsburg IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 634   2016-10-31   
312-212 0 Chicago Zone 01-Wabash IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-04-06   
312-212 3 Chicago Zone 01-Wabash IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-04-06   
312-212 8 Chicago Zone 01-Wabash IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-12-08   
312-219 8 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2012-08-03   
312-219 9 Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2012-08-03   
312-224 A Chicago Zone 01-Calumet IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
312-229 0 Chicago Zone 01-Illinois Dearborn IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2008-06-06   
312-233 2 Chicago Zone 01-Lakeshore IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-12-08   
312-234 0 Chicago Zone 01-Canal IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2008-03-13   
312-235 1 Chicago Zone 01-Wabash IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2008-04-11   
312-235 2 Chicago Zone 01-Wabash IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-12-08   
312-235 6 Chicago Zone 01-Wabash IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-12-08   

<< 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 49 50 51 >>

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.