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.

Chicago Zone 03-Kildare, IL

<< 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 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
773-850 3 CHCGIL24DS6  224C ONVOY, LLC 358   2010-05-17   
773-850 4 CHCGILMF3MD  6529 T-MOBILE USA, INC. 358   2010-12-15   
773-850 5 CHCGILMF3MD  6529 T-MOBILE USA, INC. 358   2010-12-15   
773-850 6 CHCGILMF3MD  6529 T-MOBILE USA, INC. 358   2010-12-15   
773-850 7 CHCGILMF3MD  6529 T-MOBILE USA, INC. 358   2011-01-27   
773-850 8 OKBRILDODS0  259E YMAX COMMUNICATIONS CORP. - IL 358   2010-10-27   
773-850 9 RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2008-10-27   
773-853 A CHCGILMF3MD  6529 T-MOBILE USA, INC. 358      
773-853 0 CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358   2006-11-27   
773-853 1 CHCGILMF3MD  6529 T-MOBILE USA, INC. 358   2011-01-27   
773-853 2 CHCGILNEXJX  318J COMCAST IP PHONE, LLC 358   2007-11-11   
773-853 3 CHCGILMF3MD  6529 T-MOBILE USA, INC. 358   2006-11-24   
773-853 4 CHCGILMF3MD  6529 T-MOBILE USA, INC. 358   2006-11-24   
773-853 5 CHCGILMF3MD  6529 T-MOBILE USA, INC. 358   2006-11-24   
773-853 6 CHCGILMF3MD  6529 T-MOBILE USA, INC. 358   2006-11-24   
773-853 7 CHCGILMF3MD  6529 T-MOBILE USA, INC. 358   2006-11-24   
773-853 8 CHCGILMF3MD  6529 T-MOBILE USA, INC. 358   2006-11-24   
773-853 9 CHCGILMF3MD  6529 T-MOBILE USA, INC. 358   2006-11-24   
773-870 A BFGVILASG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
773-870 0 BFGVILASG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2002-09-27   
773-870 1 BFGVILASG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2002-09-27   
773-870 2 BFGVILASG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2002-09-27   
773-870 3 CHCGILMF3MD  6529 T-MOBILE USA, INC. 358   2004-03-19   
773-870 4 ELGNILOTGT5  5562 METROPCS, INC. 358   2004-03-19   
773-870 5 BFGVILASG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2003-01-05   
773-870 6 BFGVILASG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2003-01-05   
773-870 7 CHCGILMF3MD  6529 T-MOBILE USA, INC. 358   2004-03-19   
773-870 8 ELGNILOTGT5  5562 METROPCS, INC. 358   2004-03-19   
773-870 9 CHCGILMF3MD  6529 T-MOBILE USA, INC. 358   2004-03-01   
773-876 A ELGNILOTGT5  5562 METROPCS, INC. 358      
773-876 0   6529 T-MOBILE USA, INC. 358   2006-05-11   
773-876 1 ELGNILOTGT5  5562 METROPCS, INC. 358   2006-05-11   
773-876 2 ELGNILOTGT5  5562 METROPCS, INC. 358   2006-05-11   
773-876 3 ELGNILOTGT5  5562 METROPCS, INC. 358   2006-05-11   
773-876 4 ELGNILOTGT5  5562 METROPCS, INC. 358   2006-05-11   
773-876 5 ELGNILOTGT5  5562 METROPCS, INC. 358   2006-05-11   
773-876 6 ELGNILOTGT5  5562 METROPCS, INC. 358   2006-05-11   
773-876 7 ELGNILOTGT5  5562 METROPCS, INC. 358   2006-05-11   
773-876 8 ELGNILOTGT5  5562 METROPCS, INC. 358   2006-05-11   
773-876 9 ELGNILOTGT5  5562 METROPCS, INC. 358   2006-05-11   
773-877 A CHCGILMF3MD  6529 T-MOBILE USA, INC. 358      
773-877 0 CHCGILMF3MD  6529 T-MOBILE USA, INC. 358   2006-09-04   
773-877 1 ELGNILOTGT5  5562 METROPCS, INC. 358   2007-07-23   
773-877 2 CHCGILMF3MD  6529 T-MOBILE USA, INC. 358   2007-07-23   
773-877 3 CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-10-25   
773-877 4 ELGNILOTGT5  5562 METROPCS, INC. 358   2007-07-23   
773-877 5 ELGNILOTGT5  5562 METROPCS, INC. 358   2007-07-23   
773-877 6 ELGNILOTGT5  5562 METROPCS, INC. 358   2007-07-23   
773-877 7 ELGNILOTGT5  5562 METROPCS, INC. 358   2007-07-23   
773-877 8 CHCGILMF3MD  6529 T-MOBILE USA, INC. 358   2007-07-23   

<< 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 >>

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.