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: CHCGIL24DS3

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

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
773-751 7 Chicago Zone 02-Edgewater IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2004-11-12   
773-782 9 Chicago Zone 04-Humboldt IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2015-10-29   
773-808 5 Chicago Zone 07-Stewart IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2006-08-19   
773-830 5 Chicago Zone 05-Austin IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2004-09-06   
773-855 7 Chicago Zone 07-Oakland IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2006-07-03   
773-861 A Chicago Zone 04-Humboldt IL 4604 FIRST COMMUNICATIONS, LLC - IL 358      
773-861 0 Chicago Zone 04-Humboldt IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2007-04-27   
773-861 1 Chicago Zone 04-Humboldt IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2007-04-27   
773-861 2 Chicago Zone 04-Humboldt IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2007-04-27   
773-861 3 Chicago Zone 04-Humboldt IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2007-04-27   
773-861 4 Chicago Zone 04-Humboldt IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2007-04-27   
773-861 5 Chicago Zone 04-Humboldt IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2007-04-27   
773-861 6 Chicago Zone 04-Humboldt IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2007-04-27   
773-861 7 Chicago Zone 04-Humboldt IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2007-04-27   
773-861 8 Chicago Zone 04-Humboldt IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2007-04-27   
773-861 9 Chicago Zone 04-Humboldt IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2007-04-27   
773-888 8 Chicago Zone 04-Humboldt IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2013-12-19   
773-902 9 Chicago Zone 09-South Chicago IL 515J IP HORIZON LLC 358   2021-06-13   
773-904 4 Chicago Zone 04-Humboldt IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2008-09-12   
773-904 5 Chicago Zone 04-Humboldt IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2008-08-17   
773-987 A Chicago Zone 10-Beverly IL 4604 FIRST COMMUNICATIONS, LLC - IL 358      
773-987 0 Chicago Zone 10-Beverly IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2005-05-19   
779-234 3 Plainfield IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2015-02-16   
779-264 7 Kankakee IL 515J IP HORIZON LLC 358   2021-06-14   
779-265 1 McHenry IL 515J IP HORIZON LLC 358   2021-06-14   
779-356 1 Crystal Lake IL 515J IP HORIZON LLC 358   2021-06-14   
779-758 0 Joliet IL 515J IP HORIZON LLC 358   2021-06-12   
815-207 6 Joliet West IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2005-02-10   
815-214 5 Kankakee IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2005-02-20   
815-215 A New Lenox IL 4604 FIRST COMMUNICATIONS, LLC - IL 358      
815-215 0 New Lenox IL 4604 FIRST COMMUNICATIONS, LLC - IL 358      
815-215 4 New Lenox IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2005-02-26   
815-215 5 New Lenox IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2003-11-12   
815-215 9 New Lenox IL 4604 FIRST COMMUNICATIONS, LLC - IL 358      
815-221 6 Lockport IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2005-03-19   
815-237 6 Gardner IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2005-02-20   
815-261 3 Crystal Lake IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2003-08-12   
815-265 3 Gilman IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2004-11-28   
815-267 5 Plainfield IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2005-02-20   
815-268 2 Onarga IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2005-02-26   
815-268 3 Onarga IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2004-11-22   
815-268 6 Onarga IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2004-02-07   
815-269 1 Danforth IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2005-02-26   
815-269 3 Danforth IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2004-11-22   
815-269 8 Danforth IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2004-02-04   
815-271 3 McHenry IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2005-02-20   
815-277 8 Frankfort IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2005-03-19   
815-280 4 Joliet IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2005-02-20   
815-287 4 Verona IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2003-07-03   
815-287 5 Verona IL 4604 FIRST COMMUNICATIONS, LLC - IL 358   2004-11-22   

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

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.