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 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
773-340 4 Chicago Zone 08-Portsmouth IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2008-07-18   
773-349 4 Chicago Zone 08-Portsmouth IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2001-11-13   
773-353 A Chicago Zone 03-Kildare IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-353 0 Chicago Zone 03-Kildare IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-353 1 Chicago Zone 03-Kildare IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-353 2 Chicago Zone 03-Kildare IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-353 3 Chicago Zone 03-Kildare IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-353 4 Chicago Zone 03-Kildare IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-353 5 Chicago Zone 03-Kildare IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-353 6 Chicago Zone 03-Kildare IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-353 7 Chicago Zone 03-Kildare IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-353 8 Chicago Zone 03-Kildare IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-355 2 Chicago Zone 03-Kildare IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2000-07-05   
773-355 3 Chicago Zone 03-Kildare IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2000-07-05   
773-355 4 Chicago Zone 03-Kildare IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2004-09-18   
773-358 1 Chicago Zone 07-Oakland IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-03-13   
773-358 2 Chicago Zone 07-Oakland IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2004-09-02   
773-359 1 Chicago Zone 09-South Chicago IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2000-10-16   
773-360 A Chicago Zone 04-Humboldt IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-360 0 Chicago Zone 04-Humboldt IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-10-25   
773-360 2 Chicago Zone 04-Humboldt IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-360 3 Chicago Zone 04-Humboldt IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-03-05   
773-360 5 Chicago Zone 04-Humboldt IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-04-24   
773-362 4 Chicago Zone 08-Portsmouth IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-09-15   
773-362 5 Chicago Zone 08-Portsmouth IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-04-06   
773-362 6 Chicago Zone 08-Portsmouth IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-04-10   
773-364 6 Chicago Zone 09-South Chicago IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-10-25   
773-366 8 Chicago Zone 10-Beverly IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2004-11-22   
773-372 1 Chicago Zone 03-Kildare IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2009-05-13   
773-377 8 Chicago Zone 11-O'Hare IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2011-09-24   
773-382 0 Chicago Zone 09-South Chicago IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2004-10-25   
773-382 1 Chicago Zone 09-South Chicago IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-08-22   
773-382 8 Chicago Zone 09-South Chicago IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2004-01-13   
773-409 4 Chicago Zone 02-Edgewater IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2002-10-28   
773-432 4 Chicago Zone 08-Portsmouth IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2007-03-03   
773-432 7 Chicago Zone 08-Portsmouth IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2010-06-21   
773-433 2 Chicago Zone 02-Edgewater IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-01-17   
773-433 4 Chicago Zone 02-Edgewater IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2004-08-25   
773-433 7 Chicago Zone 02-Edgewater IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-01-17   
773-433 8 Chicago Zone 02-Edgewater IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-01-17   
773-435 6 Chicago Zone 04-Humboldt IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-09-29   
773-435 8 Chicago Zone 04-Humboldt IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-07-15   
773-435 9 Chicago Zone 04-Humboldt IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-10-25   
773-446 A Chicago Zone 06-Kedzie IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-446 1 Chicago Zone 06-Kedzie IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-446 3 Chicago Zone 06-Kedzie IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-446 5 Chicago Zone 06-Kedzie IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-446 6 Chicago Zone 06-Kedzie IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-446 7 Chicago Zone 06-Kedzie IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-446 8 Chicago Zone 06-Kedzie IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-451 8 Chicago Zone 07-Oakland IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-10-13   
773-451 9 Chicago Zone 07-Oakland IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-10-13   
773-466 6 Chicago Zone 05-Austin IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2012-02-20   
773-466 8 Chicago Zone 05-Austin IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2009-04-24   
773-467 7 Chicago Zone 03-Newcastle IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-12-08   
773-474 7 Chicago Zone 10-Beverly IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2002-04-23   
773-482 2 Chicago Zone 11-O'Hare IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2000-09-28   
773-492 6 Chicago Zone 08-Portsmouth IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2012-03-04   
773-496 4 Chicago Zone 07-Stewart IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2002-10-28   
773-524 A Chicago Zone 04-Humboldt IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-524 2 Chicago Zone 04-Humboldt IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-524 3 Chicago Zone 04-Humboldt IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-524 4 Chicago Zone 04-Humboldt IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-524 5 Chicago Zone 04-Humboldt IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-524 6 Chicago Zone 04-Humboldt IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2010-11-27   
773-527 A Chicago Zone 03-Kildare IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-527 0 Chicago Zone 03-Kildare IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-527 1 Chicago Zone 03-Kildare IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-527 2 Chicago Zone 03-Kildare IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-527 4 Chicago Zone 03-Kildare IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-527 5 Chicago Zone 03-Kildare IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-527 6 Chicago Zone 03-Kildare IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-527 7 Chicago Zone 03-Kildare IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-530 1 Chicago Zone 09-South Chicago IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-04-22   
773-530 2 Chicago Zone 09-South Chicago IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-04-22   
773-530 3 Chicago Zone 09-South Chicago IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-04-22   
773-541 2 Chicago Zone 02-Edgewater IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-541 3 Chicago Zone 02-Edgewater IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-541 6 Chicago Zone 02-Edgewater IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-546 9 Chicago Zone 10-Pullman IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-05-12   
773-569 3 Chicago Zone 03-Newcastle IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-12-08   
773-570 A Chicago Zone 11-O'Hare IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-570 3 Chicago Zone 11-O'Hare IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-07-14   
773-570 4 Chicago Zone 11-O'Hare IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-570 5 Chicago Zone 11-O'Hare IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-07-14   
773-570 6 Chicago Zone 11-O'Hare IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-07-14   
773-572 A Chicago Zone 04-Humboldt IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-572 1 Chicago Zone 04-Humboldt IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-572 2 Chicago Zone 04-Humboldt IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-572 3 Chicago Zone 04-Humboldt IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-572 4 Chicago Zone 04-Humboldt IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-572 5 Chicago Zone 04-Humboldt IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-572 6 Chicago Zone 04-Humboldt IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-572 7 Chicago Zone 04-Humboldt IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-572 8 Chicago Zone 04-Humboldt IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
773-572 9 Chicago Zone 04-Humboldt IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-10-25   
773-584 3 Chicago Zone 06-Kedzie IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-09-17   
773-596 1 Chicago Zone 02-Edgewater IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-06-12   
773-596 9 Chicago Zone 02-Edgewater IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-06-12   
773-597 4 Chicago Zone 07-Stewart IL 6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-03-20   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 >>

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.