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331 Area Code

Area Code 331 Details

State: Illinois
Major City: Lemont
Timezone: Central
Current time: 8:58am
Short URL: allareacodes.com/331
Download: Download this data

Area Code 331 Map

Click Here for a Printable Map: 331 Area Code Map

Major Cities in Area Code 331

  • Addison, IL
  • Aurora, IL
  • Bartlett, IL
  • Batavia, IL
  • Bensenville, IL
  • Bloomingdale, IL
  • Bolingbrook, IL
  • Carol Stream, IL
  • Darien, IL
  • Downers Grove, IL
  • Elmhurst, IL
  • Glen Ellyn, IL
  • Glendale Heights, IL
  • Hanover Park, IL
  • Lisle, IL
  • Lombard, IL
  • Naperville, IL
  • Roselle, IL
  • St. Charles, IL
  • Streamwood, IL
  • Villa Park, IL
  • West Chicago, IL
  • Westmont, IL
  • Wheaton, IL
  • Woodridge, IL

Recent Changes for the 331 Area Code

Date Change
2007-07-06 Area code 331 was put into service when (331) 248- was introduced as the first prefix.

Area Code 331 Prefixes

Prefix Primary City Company County Usage Introduced
(331) 200- Bartlett, IL T-mobile Usa Cook Cell Number 07/11/2011
(331) 201- Downers Grove, IL Cellco Partnership DBA Verizon Wireless Dupage Cell Number 01/06/2012
(331) 202- Elmhurst, IL Sprint Spectrum L.p. Dupage Cell Number 01/17/2012
(331) 203- Aurora, IL Sprint Spectrum L.p. Kane Cell Number 10/12/2011
(331) 204- Bartlett, IL Broadvox-clec Cook Landline 07/29/2013
(331) 205- Aurora, IL T-mobile Usa Kane Cell Number 10/21/2011
(331) 206- Aurora, IL Sprint Spectrum L.p. Kane Cell Number 10/12/2011
(331) 207- Yorkville, IL Level 3 Communications Kendall Landline 11/01/2011
(331) 208- Aurora, IL Sprint Spectrum L.p. Kane Cell Number 11/08/2011
(331) 209- Elmhurst, IL Level 3 Communications Dupage Cell Number 01/17/2012
(331) 210- Saint Charles, IL Peerless Network Of Illinois Kane Landline 03/06/2012
(331) 212- Aurora, IL Mci Worldcom Communications Kane Landline 04/05/2012
(331) 213- Naperville, IL Cellco Partnership DBA Verizon Wireless Dupage Cell Number 09/06/2011
(331) 214- Downers Grove, IL Cellco Partnership DBA Verizon Wireless Dupage Cell Number 06/20/2012
(331) 215- Naperville, IL Cellco Partnership DBA Verizon Wireless Dupage Cell Number 09/28/2012
(331) 216- Oswego, IL New Cingular Wireless PCS Kendall Cell Number 10/31/2012
(331) 218- Wheaton, IL T-mobile Usa Dupage Cell Number 07/09/2013
(331) 220- Aurora, IL Sprint Spectrum L.p. Kane Cell Number 07/12/2011
(331) 221- Elmhurst, IL Ameritech Illinois Dupage Landline 01/21/2009
(331) 222- Saint Charles, IL Cricket Communications Kane Cell Number 10/28/2008
(331) 223- Saint Charles, IL Cricket Communications Kane Cell Number 10/28/2008
(331) 225- Elmhurst, IL Sprint Spectrum L.p. Dupage Cell Number 08/22/2011
(331) 228- Saint Charles, IL Ovation Communications Of Illinois Kane Cell Number 09/21/2011
(331) 229- Naperville, IL Cellco Partnership DBA Verizon Wireless Dupage Cell Number 11/27/2012
(331) 234- Sugar Grove, IL Cellco Partnership DBA Verizon Wireless Kane Cell Number 07/08/2013
(331) 240- West Chicago, IL Peerless Network Of Illinois Dupage Landline 04/10/2013
(331) 245- Bartlett, IL T-mobile Usa Cook Cell Number 04/18/2013
(331) 248- Geneva, IL Comcast Phone Of Illinois DBA Comco Kane Landline 07/06/2007
(331) 250- Aurora, IL T-mobile Usa Kane Cell Number 04/10/2012
(331) 251- Downers Grove, IL Cellco Partnership DBA Verizon Wireless Dupage Cell Number 12/05/2012
(331) 254- T-mobile Usa Unknown 07/16/2014
(331) 256- Aurora, IL Cellco Partnership DBA Verizon Wireless Kane Cell Number 09/13/2011
(331) 262- Aurora, IL Sprint Spectrum L.p. Kane Cell Number 07/30/2008
(331) 281- Naperville, IL Ameritech Illinois Dupage Landline 10/25/2012
(331) 301- Aurora, IL Local Access LLC Kane Landline 03/13/2013
(331) 302- Aurora, IL Cellco Partnership DBA Verizon Wireless Kane Cell Number 02/11/2013
(331) 303- Elburn, IL Cibolo Creek Ventures DBA Routepoint Comm Il Kane Landline 04/22/2013
(331) 305- Naperville, IL Cellco Partnership DBA Verizon Wireless Dupage Cell Number 08/15/2013
(331) 318- Lemont, IL Local Access LLC Cook Landline 08/01/2013
(331) 330- Oswego, IL Cricket Communications Kendall Landline 08/19/2008
(331) 332- Naperville, IL Cricket Communications Dupage Cell Number 11/03/2008
(331) 333- Naperville, IL Cricket Communications Dupage Cell Number 11/03/2008
(331) 422- Saint Charles, IL Level 3 Communications Kane Landline 11/13/2008
(331) 425- Aurora, IL T-mobile Usa Kane Cell Number 07/11/2007
(331) 431- Aurora, IL Bandwidth.com Clec Kane Cell Number 05/26/2010
(331) 442- Saint Charles, IL Cellco Partnership DBA Verizon Wireless Kane Cell Number 10/30/2008
(331) 444- Naperville, IL Cellco Partnership DBA Verizon Wireless Dupage Landline 08/04/2010
(331) 452- Aurora, IL Cellco Partnership DBA Verizon Wireless Kane Cell Number 09/20/2007
(331) 454- Aurora, IL Cricket Communications Kane Cell Number 05/07/2009
(331) 456- Roselle, IL First Communications LLC Dupage Landline 12/05/2007
(331) 457- Naperville, IL Cellco Partnership DBA Verizon Wireless Dupage Cell Number 11/14/2008
(331) 462- Lombard, IL Xo Illinois Dupage Landline 08/23/2008
(331) 465- West Chicago, IL New Cingular Wireless PCS Dupage Cell Number 10/17/2007
(331) 472- Naperville, IL T-mobile Usa Dupage Cell Number 10/22/2008
(331) 481- Downers Grove, IL Cellco Partnership DBA Verizon Wireless Dupage Cell Number 10/29/2008
(331) 551- Lombard, IL Cricket Communications Dupage Cell Number 11/05/2008
(331) 575- Aurora, IL Sprint Spectrum L.p. Kane Cell Number 09/18/2007
(331) 588- Saint Charles, IL New Cingular Wireless PCS Kane Cell Number 02/15/2010
(331) 625- Downers Grove, IL Cellco Partnership DBA Verizon Wireless Dupage Cell Number 10/16/2009
(331) 642- Elmhurst, IL Bandwidth.com Clec Dupage Cell Number 06/19/2008
(331) 643- Aurora, IL Sprint Spectrum L.p. Kane Cell Number 09/18/2007
(331) 645- Elmhurst, IL Sprint Spectrum L.p. Dupage Cell Number 11/05/2007
(331) 684- Aurora, IL Sigecom Kane Landline 07/12/2007
(331) 702- Naperville, IL Mci Worldcom Communications Dupage Landline 10/23/2013
(331) 703- West Chicago, IL T-mobile Usa Dupage Cell Number 10/24/2013
(331) 725- Oswego, IL New Cingular Wireless PCS Kendall Landline 05/19/2009
(331) 777- Downers Grove, IL Cellco Partnership DBA Verizon Wireless Dupage Landline 09/22/2010
(331) 801- Teleport Communications America Unknown 05/15/2014
(331) 803- Lemont, IL Peerless Network Of Illinois Cook Landline 04/10/2013
(331) 825- Digital Network Access Communications Unknown 11/08/2007
(331) 826- Elmhurst, IL Sprint Spectrum L.p. Dupage Cell Number 11/18/2008
(331) 888- Warrenville, IL Peerless Network Of Illinois Dupage Landline 09/24/2010
(331) 903- Sbc Internet Services Unknown 05/15/2014
(331) 999- Oswego, IL Bandwidth.com Clec Kendall Landline 09/22/2010

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