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.

Naperville, IL

<< 1 2 3 4 5 6 7 8 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
331-529 8   224C ONVOY, LLC 358   2020-12-03   
331-529 9   965H FRACTEL, LLC 358   2019-10-02   
331-688 A CHCGILWUTMD  516J TON80 COMMUNICATIONS, LLC 358      
331-688 0   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2022-04-22   
331-688 1   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2022-04-22   
331-688 2   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2022-04-22   
331-688 3   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2022-04-22   
331-688 4   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2022-04-22   
331-688 5   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2022-04-22   
331-688 6   624H ONVOY SPECTRUM, LLC 358   2022-04-22   
331-688 7   624H ONVOY SPECTRUM, LLC 358   2022-04-22   
331-688 8   516J TON80 COMMUNICATIONS, LLC 358   2022-04-21   
331-688 9   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2022-04-22   
331-701 A RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
331-701 0   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2015-01-25   
331-701 1   6529 T-MOBILE USA, INC. 358   2015-07-19   
331-701 2   224C ONVOY, LLC 358   2015-05-04   
331-701 3   7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 358   2015-01-27   
331-701 4   460K FIRST COMMUNICATIONS, LLC 358   2015-02-13   
331-701 5   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2015-05-08   
331-701 6   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2015-05-20   
331-701 7   318J COMCAST IP PHONE, LLC 358   2015-04-28   
331-701 8   6529 T-MOBILE USA, INC. 358   2015-07-19   
331-701 9   6529 T-MOBILE USA, INC. 358   2015-07-19   
331-702 A EGVGILIFDS1  7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 358      
331-702 0   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2014-11-07   
331-702 1   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2014-11-07   
331-702 2   318J COMCAST IP PHONE, LLC 358   2014-06-20   
331-702 3   7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 358   2013-12-07   
331-702 4   7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 358   2013-12-07   
331-702 5   7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 358   2013-12-07   
331-702 6   7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 358   2014-06-25   
331-702 7   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2014-10-16   
331-702 8   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2014-10-16   
331-702 9   224C ONVOY, LLC 358   2014-12-10   
331-814 A ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
331-814 0   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2015-11-13   
331-814 1   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2017-10-08   
331-814 2   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2015-08-24   
331-814 3   318J COMCAST IP PHONE, LLC 358   2015-10-11   
331-814 4   829J PAETEC ITEL, LLC 358   2015-11-13   
331-814 5   6529 T-MOBILE USA, INC. 358   2015-08-23   
331-814 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2016-07-25   
331-814 7   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2016-07-25   
331-814 8   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2017-10-08   
331-814 9   6529 T-MOBILE USA, INC. 358   2015-08-23   
630-200 A RVDLILBDAMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358      
630-200 0   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2006-10-23   
630-200 1   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2006-10-23   
630-200 2   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2006-10-23   
630-200 3   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2006-10-23   
630-200 4   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2006-10-23   
630-200 5   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2006-10-23   
630-200 6   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2006-10-23   
630-200 7   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2006-10-21   
630-200 8   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2006-10-23   
630-200 9   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2006-10-23   
630-201 A ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
630-201 0   6529 T-MOBILE USA, INC. 358   2004-10-21   
630-201 1   6529 T-MOBILE USA, INC. 358   2004-10-21   
630-201 2   6529 T-MOBILE USA, INC. 358   2004-10-21   
630-201 3   6529 T-MOBILE USA, INC. 358   2004-10-21   
630-201 4   6529 T-MOBILE USA, INC. 358   2004-10-21   
630-201 5   6529 T-MOBILE USA, INC. 358   2004-10-21   
630-201 6   6529 T-MOBILE USA, INC. 358   2004-10-20   
630-201 7   6529 T-MOBILE USA, INC. 358   2004-10-20   
630-201 8   6529 T-MOBILE USA, INC. 358   2004-10-21   
630-201 9   6529 T-MOBILE USA, INC. 358   2004-10-21   
630-210 A OKBRILOAXEX  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
630-210 0   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
630-210 1   6529 T-MOBILE USA, INC. 358   2006-07-26   
630-210 2   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2011-02-10   
630-210 3   460K FIRST COMMUNICATIONS, LLC 358   2011-02-11   
630-210 4   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2011-10-25   
630-210 5   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2011-10-21   
630-210 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2011-10-22   
630-210 7   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
630-210 8   318J COMCAST IP PHONE, LLC 358   2012-04-14   
630-210 9   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358      
630-219 A CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
630-219 0   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2007-01-07   
630-219 1   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2007-01-07   
630-219 2   829J PAETEC ITEL, LLC 358   2007-04-09   
630-219 3   8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358   2007-08-06   
630-219 4   8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358   2007-08-06   
630-219 5   8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358   2007-08-06   
630-219 6   8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358   2007-08-06   
630-219 7   8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358   2007-08-06   
630-219 8   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2007-07-30   
630-219 9   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2007-07-30   
630-224 A NPVLILBJRS0  9329 ILLINOIS BELL TEL CO 358      
630-276 A BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
630-276 0   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 358   2025-09-04   
630-276 1   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
630-276 2   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
630-276 3   6529 T-MOBILE USA, INC. 358   2003-05-28   
630-276 4   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
630-276 5   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358      
630-276 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2003-09-30   
630-276 7   460K FIRST COMMUNICATIONS, LLC 358   2000-11-02   

<< 1 2 3 4 5 6 7 8 >>

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.