331 Area Code

Area Code 331 time
03:48:17 AM
Area Code 331 time

331 code area is located in Central timezone. This timezone also known as America/Chicago. Current time in 331 is 3:48am.

Area code 331 is in service since Aug 21, 1970. Code was created from area code 630.

Nearby area codes

Counties of 331 area

CountyPopulation% of 331% of County
DuPage County 916,924 36 100
Kane County 515,269 33 59
Kendall County 114,736 20 58
Will County 677,560 6 6

Cities of 331 area

CityPopulation% of 331% of City
Aurora 197,899 5 100
Naperville 141,853 4 100
Bolingbrook 73,366 2 91
Wheaton 52,894 1 100
Downers Grove 47,833 2 100
Elmhurst 44,121 1 100
Lombard 43,165 1 100
Carol Stream 39,711 1 100
Bartlett 41,208 2 94
Streamwood 39,858 1 97
Hanover Park 37,973 1 100
Addison 36,942 1 100
Glendale Heights 34,208 1 100
St Charles 32,974 2 100
Woodridge 32,971 1 100
Oswego 30,355 2 100
Glen Ellyn 27,450 1 100
West Chicago 27,086 2 100
Batavia 26,045 1 100
Westmont 24,685 1 100
Roselle 22,763 1 100
Lisle 22,390 1 100
Darien 22,086 1 100
Bloomingdale 22,018 1 100
Villa Park 21,904 1 100
Geneva 21,495 1 100
Montgomery 18,438 1 100
Bensenville 18,352 1 99
North Aurora 16,760 1 100
Hinsdale 16,816 98
Yorkville 16,921 2 96
Lemont 16,000 1 100
Wood Dale 13,770 1 100
Warrenville 13,140 1 100
Plano 10,856 1 100
Burr Ridge 10,559 1 99
Campton Hills 11,131 2 82
Winfield 9,080 100
Sugar Grove 8,997 1 100
Itasca 8,649 1 100
Willowbrook 8,540 100
Clarendon Hills 8,427 100
Joliet 147,433 6
Boulder Hill 8,108 100
Plainfield 39,581 1 20
Oak Brook 7,883 1 99
Elburn 5,602 100
Romeoville 39,680 9
Wayne 2,431 1 99
Oakbrook Terrace 2,134 100

Telephone Carriers

CarrierType% of 331
Peerless Network landline 5
Level 3 landline 3
Mci Worldcom landline 3
Ameritech landline 3
Local Access landline 3
Verizon Wireless landline 3
Broadvox-clec landline 1
Other landline 11
Verizon Wireless wireless 20
Sprint wireless 15
T-mobile wireless 11
Cricket wireless 8
Cingular wireless 4
Bandwidthcom Clec wireless 3
Level 3 wireless 1
Other wireless 1

Prefixes

PrefixTypePrimary CityCarrierIntroduced
331200 wireless Bartlett T-mobile Usa Jul 11, 2011
331201 wireless Downers Grove Cellco Partnership DBA Verizon Wireless Jan 6, 2012
331202 wireless Elmhurst Sprint Spectrum Jan 17, 2012
331203 wireless Aurora Sprint Spectrum Oct 12, 2011
331204 landline Bartlett Broadvox-clec Jul 29, 2013
331205 wireless Aurora T-mobile Usa Oct 21, 2011
331206 wireless Aurora Sprint Spectrum Oct 12, 2011
331207 landline Yorkville Level 3 Communications Nov 1, 2011
331208 wireless Aurora Sprint Spectrum Nov 8, 2011
331209 wireless Elmhurst Level 3 Communications Jan 17, 2012
331210 landline Saint Charles Peerless Network Of Illinois Mar 6, 2012
331212 landline Aurora Mci Worldcom Communications Apr 5, 2012
331213 wireless Naperville Cellco Partnership DBA Verizon Wireless Sep 6, 2011
331214 wireless Downers Grove Cellco Partnership DBA Verizon Wireless Jun 20, 2012
331215 wireless Naperville Cellco Partnership DBA Verizon Wireless Sep 28, 2012
331216 wireless Oswego New Cingular Wireless PCS Oct 31, 2012
331218 wireless Wheaton T-mobile Usa Jul 9, 2013
331220 wireless Aurora Sprint Spectrum Jul 12, 2011
331221 landline Elmhurst Ameritech Illinois Jan 21, 2009
331222 wireless Saint Charles Cricket Communications Oct 28, 2008
331223 wireless Saint Charles Cricket Communications Oct 28, 2008
331225 wireless Elmhurst Sprint Spectrum Aug 22, 2011
331228 wireless Saint Charles Ovation Communications Of Illinois Sep 21, 2011
331229 wireless Naperville Cellco Partnership DBA Verizon Wireless Nov 27, 2012
331234 wireless Sugar Grove Cellco Partnership DBA Verizon Wireless Jul 8, 2013
331240 landline West Chicago Peerless Network Of Illinois Apr 10, 2013
331245 wireless Bartlett T-mobile Usa Apr 18, 2013
331248 landline Geneva Comcast Phone Of Illinois DBA Comco Jul 6, 2007
331250 wireless Aurora T-mobile Usa Apr 10, 2012
331251 wireless Downers Grove Cellco Partnership DBA Verizon Wireless Dec 5, 2012
331254 Aurora T-mobile Usa Jul 16, 2014
331256 wireless Aurora Cellco Partnership DBA Verizon Wireless Sep 13, 2011
331262 wireless Aurora Sprint Spectrum Jul 30, 2008
331281 landline Naperville Ameritech Illinois Oct 25, 2012
331301 landline Aurora Local Access LLC Mar 13, 2013
331302 wireless Aurora Cellco Partnership DBA Verizon Wireless Feb 11, 2013
331303 landline Elburn Cibolo Creek Ventures DBA Routepoint Comm Il Apr 22, 2013
331305 wireless Naperville Cellco Partnership DBA Verizon Wireless Aug 15, 2013
331318 landline Lemont Local Access LLC Aug 1, 2013
331330 landline Oswego Cricket Communications Aug 19, 2008
331332 wireless Naperville Cricket Communications Nov 3, 2008
331333 wireless Naperville Cricket Communications Nov 3, 2008
331422 landline Saint Charles Level 3 Communications Nov 13, 2008
331425 wireless Aurora T-mobile Usa Jul 11, 2007
331431 wireless Aurora Bandwidth.com Clec May 26, 2010
331442 wireless Saint Charles Cellco Partnership DBA Verizon Wireless Oct 30, 2008
331444 landline Naperville Cellco Partnership DBA Verizon Wireless Aug 4, 2010
331452 wireless Aurora Cellco Partnership DBA Verizon Wireless Sep 20, 2007
331454 wireless Aurora Cricket Communications May 7, 2009
331456 landline Roselle First Communications LLC Dec 5, 2007
331457 wireless Naperville Cellco Partnership DBA Verizon Wireless Nov 14, 2008
331462 landline Lombard Xo Illinois Aug 23, 2008
331465 wireless West Chicago New Cingular Wireless PCS Oct 17, 2007
331472 wireless Naperville T-mobile Usa Oct 22, 2008
331481 wireless Downers Grove Cellco Partnership DBA Verizon Wireless Oct 29, 2008
331551 wireless Lombard Cricket Communications Nov 5, 2008
331552 Nov 5, 2008
331553 Nov 5, 2008
331575 wireless Aurora Sprint Spectrum Sep 18, 2007
331588 wireless Saint Charles New Cingular Wireless PCS Feb 15, 2010
331591 Elmhurst Sep 28, 2007
331625 wireless Downers Grove Cellco Partnership DBA Verizon Wireless Oct 16, 2009
331642 wireless Elmhurst Bandwidth.com Clec Jun 19, 2008
331643 wireless Aurora Sprint Spectrum Sep 18, 2007
331645 wireless Elmhurst Sprint Spectrum Nov 5, 2007
331684 landline Aurora Sigecom Jul 12, 2007
331702 landline Naperville Mci Worldcom Communications Oct 23, 2013
331703 wireless West Chicago T-mobile Usa Oct 24, 2013
331725 landline Oswego New Cingular Wireless PCS May 19, 2009
331777 landline Downers Grove Cellco Partnership DBA Verizon Wireless Sep 22, 2010
331801 Aurora Teleport Communications America May 15, 2014
331803 landline Lemont Peerless Network Of Illinois Apr 10, 2013
331825 Aurora Digital Network Access Communications Nov 8, 2007
331826 wireless Elmhurst Sprint Spectrum Nov 18, 2008
331888 landline Warrenville Peerless Network Of Illinois Sep 24, 2010
331903 Aurora Sbc Internet Services May 15, 2014
331999 landline Oswego Bandwidth.com Clec Sep 22, 2010