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.

Barrington, IL

<< 1 2 3 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
224-517 5   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2016-04-14   
224-517 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2016-01-25   
224-517 7   6529 T-MOBILE USA, INC. 358   2015-04-20   
224-517 8   6529 T-MOBILE USA, INC. 358   2015-04-20   
224-517 9   6529 T-MOBILE USA, INC. 358   2015-04-20   
224-594 A CHCGIL24DS6  224C ONVOY, LLC 358   2024-04-28   
224-594 0   224C ONVOY, LLC 358   2024-04-28   
224-594 1   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2025-01-20   
224-594 8   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2025-03-11   
224-599 A CHCGILWURMD  965H FRACTEL, LLC 358      
224-599 0   224C ONVOY, LLC 358   2024-03-01   
224-599 1   515J IP HORIZON LLC 358   2021-06-26   
224-599 2   984E BANDWIDTH.COM CLEC, LLC - IL 358   2021-07-12   
224-599 3   624H ONVOY SPECTRUM, LLC 358   2021-06-27   
224-599 4   984E BANDWIDTH.COM CLEC, LLC - IL 358   2021-07-12   
224-599 5   984E BANDWIDTH.COM CLEC, LLC - IL 358   2021-08-15   
224-599 6   984E BANDWIDTH.COM CLEC, LLC - IL 358   2021-08-15   
224-599 7   6529 T-MOBILE USA, INC. 358   2021-08-12   
224-599 8   6529 T-MOBILE USA, INC. 358   2021-08-12   
224-599 9   965H FRACTEL, LLC 358   2020-09-11   
224-622 A ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
224-633 A CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
224-633 0   6529 T-MOBILE USA, INC. 358   2005-04-26   
224-633 1   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-04-22   
224-633 2   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2014-03-02   
224-633 3   984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-03-05   
224-633 4   224C ONVOY, LLC 358   2010-03-29   
224-633 5   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-04-25   
224-633 6   6529 T-MOBILE USA, INC. 358   2008-09-08   
224-633 7   224C ONVOY, LLC 358   2010-07-18   
224-633 8   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-05-25   
224-633 9   984E BANDWIDTH.COM CLEC, LLC - IL 358   2008-12-12   
224-634 A WCHCILBFGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
224-634 0   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2009-06-29   
224-634 1   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2010-03-13   
224-634 2   224C ONVOY, LLC 358   2010-07-18   
224-634 3   224C ONVOY, LLC 358   2010-07-18   
224-634 4   984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-09-10   
224-634 5   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2010-09-16   
224-634 6   984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-10-30   
224-634 7   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2011-03-27   
224-634 8   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2012-03-05   
224-634 9   984E BANDWIDTH.COM CLEC, LLC - IL 358   2012-04-21   
224-655 A CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
224-655 0   6529 T-MOBILE USA, INC. 358   2012-08-24   
224-655 1   460K FIRST COMMUNICATIONS, LLC 358   2014-05-24   
224-655 2   318J COMCAST IP PHONE, LLC 358   2011-11-26   
224-655 3   984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-06-17   
224-655 4   829J PAETEC ITEL, LLC 358   2009-11-12   
224-655 5   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2011-12-24   
224-655 6   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-02-20   
224-655 7   318J COMCAST IP PHONE, LLC 358   2012-06-07   
224-655 8   6529 T-MOBILE USA, INC. 358   2013-02-21   
224-655 9   6529 T-MOBILE USA, INC. 358   2013-02-21   
224-770 A ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
224-770 0   6529 T-MOBILE USA, INC. 358   2006-01-20   
224-770 1   6529 T-MOBILE USA, INC. 358   2012-08-29   
224-770 2   829J PAETEC ITEL, LLC 358   2006-02-17   
224-770 3   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2007-04-30   
224-770 4   5447 ACCESS ONE, INC. - IL 358   2007-12-06   
224-770 5   5447 ACCESS ONE, INC. - IL 358   2007-11-17   
224-770 6   624H ONVOY SPECTRUM, LLC 358   2021-11-26   
224-770 7   6529 T-MOBILE USA, INC. 358   2014-06-18   
224-770 8   6529 T-MOBILE USA, INC. 358   2014-06-18   
224-770 9   6529 T-MOBILE USA, INC. 358   2006-01-20   
224-848 A ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
224-848 0   6529 T-MOBILE USA, INC. 358   2005-08-21   
224-848 1   6529 T-MOBILE USA, INC. 358   2005-08-21   
224-848 2   6529 T-MOBILE USA, INC. 358   2005-10-07   
224-848 3   6529 T-MOBILE USA, INC. 358   2021-08-12   
224-848 4   318J COMCAST IP PHONE, LLC 358   2008-04-01   
224-848 5   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2020-03-15   
224-848 6   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2005-10-29   
224-848 7   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2005-10-29   
224-848 9   6529 T-MOBILE USA, INC. 358   2005-08-21   
847-277 A BNTOILBADS0  9329 ILLINOIS BELL TEL CO 358      
847-304 A BNTOILBADS0  9329 ILLINOIS BELL TEL CO 358      
847-381 A BNTOILBADS0  9329 ILLINOIS BELL TEL CO 358      
847-382 A BNTOILBADS0  9329 ILLINOIS BELL TEL CO 358      
847-387 A CHCGIL24DS0  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
847-387 0   6529 T-MOBILE USA, INC. 358   2005-06-23   
847-387 1   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
847-387 2   6529 T-MOBILE USA, INC. 358   2005-07-08   
847-387 3   318J COMCAST IP PHONE, LLC 358      
847-387 4   516C AT&T CORP. 358   2005-04-18   
847-387 5   624H ONVOY SPECTRUM, LLC 358   2021-11-26   
847-387 6   829J PAETEC ITEL, LLC 358   2005-05-05   
847-387 7   6529 T-MOBILE USA, INC. 358   2005-07-20   
847-387 8   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-06-18   
847-387 9   6529 T-MOBILE USA, INC. 358   2005-07-20   
847-620 A BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
847-620 0   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
847-620 1   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
847-620 2   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
847-620 3   9329 ILLINOIS BELL TEL CO 358   1999-09-28   
847-620 4   9329 ILLINOIS BELL TEL CO 358   1999-09-28   
847-620 5   829J PAETEC ITEL, LLC 358   1999-03-01   
847-620 6   9329 ILLINOIS BELL TEL CO 358   1999-09-28   
847-620 7   9329 ILLINOIS BELL TEL CO 358   1999-09-28   
847-620 8   9329 ILLINOIS BELL TEL CO 358   2001-11-14   

<< 1 2 3 >>

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.