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331 Area Code

What are the 331 Area Code?

331 Area Code is located in Illinois State, Major Cities including Aurora, Naperville, Bolingbrook, The Time Zone is ( GMT -06:00 ),The Phone Number Prefix is 331.

331 Area Code Location Map

331 Area Code Localtion Map

Map outlining the Boundary of 331 Area Code

331 Area Code State & Central Cities & Timezone

StateIllinois
Central CitiesAurora, Naperville, Bolingbrook
Central CountiesDupage County, Kane County, Kendall County
Timezone(s)Central (GMT -06:00)
Population7,553,164

331 Area Code Location Time Right Now

331 Area Code Current time is: 06:15 AM

31 Cities included by the 331 Area Code

City# Prefixes% PrefixesPopulation% of Population
Aurora, IL9331.1%180,5422.4%
Naperville, IL9732.4%149,5402.0%
Bolingbrook, IL227.4%73,9221.0%
Wheaton, IL3210.7%53,9700.7%
Downers Grove, IL6622.1%50,2470.7%
Elmhurst, IL4816.1%45,7860.6%
Lombard, IL4414.7%44,4760.6%
Bartlett, IL279.0%41,1050.5%
Hanover Park, IL279.0%37,4700.5%
Oswego, IL134.3%34,5850.5%
Woodridge, IL6622.1%34,1580.5%
Saint Charles, IL3010.0%33,0810.4%
Glen Ellyn, IL134.3%28,8460.4%
West Chicago, IL268.7%25,6140.3%
Homer Glen, IL103.3%24,5430.3%
Roselle, IL15451.5%22,8970.3%
Yorkville, IL103.3%21,5330.3%
Geneva, IL3812.7%21,3930.3%
Montgomery, IL6822.7%20,2620.3%
Bensenville, IL12441.5%18,8130.2%
Lemont, IL3010.0%17,6290.2%
Hinsdale, IL14949.8%17,3950.2%
Warrenville, IL144.7%13,5530.2%
Plano, IL51.7%11,8470.2%
Sugar Grove, IL196.4%9,2780.1%
Oak Brook, IL9230.8%8,1630.1%
Elburn, IL113.7%6,1750.1%
Maple Park, IL31.0%1,4330.0%
Big Rock, IL134.3%1,1040.0%
Kane, IL20.7%2960.0%
Bristol, IL31.0%00.0%

331 Area Code Location Population

331 Area Code Population

331 Area Code Zip Code List

60101
60106
60116
60119
60122
60126
60128
60132
60134
60137
60138
60139
60143
60144
60147
60148
60174
60175
60181
60183
60184
60185
60186
60187
60188
60189
60190
60191
60197
60199
60439
60440
60490
60502
60503
60504
60505
60506
60507
60510
60511
60512
60514
60515
60516
60517
60519
60521
60522
60523
60527
60532
60536
60538
60539
60540
60542
60543
60545
60554
60555
60559
60560
60561
60563
60564
60565
60566
60567
60568
60569
60572
60598
60599
60688

331 Area Code Location Major Bank

NameTypePhone numberFull_addressZip CodeStateRating
Old Second National Bank - Bolingbrook West BranchBank+1 877-866-02021104 W Boughton Rd, Bolingbrook, IL 6044060440Illinois4.7
Old Second National Bank (O2 Express Lanes Only)Bank+1 877-866-02021004 104th St #100, Naperville, IL 6056460564Illinois2.8
Old National BankBank+1 630-755-9209282 N Weber Rd, Bolingbrook, IL 6044060440Illinois4
U.S. Bank BranchBank+1 630-378-3640225 N Weber Rd, Bolingbrook, IL 6049060490Illinois5
First American BankBank+1 630-679-56001290 W Boughton Rd, Bolingbrook, IL 6049060490Illinois4.4
First Bank WestBank+1 630-820-23294455 Montgomery Rd, Naperville, IL 6056460564Illinois
Huntington BankBank+1 630-226-23811200 W Boughton Rd, Bolingbrook, IL 6044060440Illinois5

331 Area Code Location Major Store

None Data

331 Area Code Location Major Hospital

NameTypePhone numberFull_addressZip CodeStateRating
UChicago Medicine AdventHealth BolingbrookHospital+1 630-312-5000500 Remington Blvd, Bolingbrook, IL 6044060440Illinois3.7
Edward-Elmhurst Health Center - BolingbrookMedical Center+1 630-527-3200130 N Weber Rd, Bolingbrook, IL 6044060440Illinois4.1
Duly Health and CareMedical Center4003 S Rte 59, Naperville, IL 6056460564Illinois1
SPRINGBROOK MEDICAL BUILDINGMedical Center1247 Rickert Dr, Naperville, IL 6054060540Illinois5
Edward Hospital North EntranceHospital+1 630-527-3000801 S Washington St, Naperville, IL 6054060540Illinois2
Naperville Psychiatric Ventures-Dba Linden Oaks HospitalPsychiatric hospital+1 630-305-5500Naperville, IL 6054060540Illinois

331 Area Code Location Major Park

NameTypePhone numberFull_addressZip CodeStateRating
Andover ParkPark3291 Andover Dr, Aurora, IL 6050460504Illinois4
irving parkParkFinley Dr, Aurora, IL 6050460504Illinois5
Harbor Springs ParkPark+1 630-897-0516Harbor Springs Park, 2299 Middlebury Dr, Aurora, IL 6050360503Illinois4.4
Wheatland ParkPark+1 630-897-0516Aurora, IL 6050460504Illinois3.6
McCarty ParkPark+1 630-897-05163000 Village Green Dr, Aurora, IL 6050460504Illinois4.5
Ridge ParkPark+1 630-897-0516Aurora, IL 6050460504Illinois4.5
Clearwood ParkParkAurora, IL 6050460504Illinois4.5
Eola Community Center ParkPark+1 630-851-8990555 S Eola Rd, Aurora, IL 6050460504Illinois4.6
Lakewood ParkPark+1 630-897-0516Hoffman Blvd, Aurora, IL 6050360503Illinois4.2
Middlebury West ParkPark+1 630-897-0516Montgomery Rd & Bar Harbour Rd, Aurora, IL 6050460504IL4.1
Brooklyn ParkPark+1 630-897-0516634 Brooklyn Dr, Aurora, IL 6050260502Illinois4.5
Breckenridge ParkPark+1 630-897-0516Breckenridge Dr, Aurora, IL 6050460504Illinois4.4
Illinois Prairie Path Junction - Aurora Branch and Batavia SpurParkIllinois Prairie Path - Aurora Br, Naperville, IL 6056360563Illinois5
Pioneer ParkNature preserve+1 630-848-50001095 Hobson Mill Dr, Naperville, IL 6054060540Illinois
Wildflower ParkPark+1 630-848-50002122 Aurora Ave, Naperville, IL 6054060540Illinois4.4

331 Area Code Location Major Police Department

NameTypePhone numberFull_addressCityZip CodeState
Naperville Police DepartmentCivil police+1 630-420-66661350 Aurora Ave, Naperville, IL 60540Naperville60540Illinois
Midwest Virtual PolicePolice department+1 630-723-049131W154 91st St # 128, Naperville, IL 60564Naperville60564Illinois
Bolingbrook Police DepartmentPolice department+1 630-226-8600375 W Briarcliff Rd, Bolingbrook, IL 60440Bolingbrook60440Illinois
Aurora Police DepartmentCity Department of Public Safety+1 630-256-50001200 E Indian Trail Rd, Aurora, IL 60505Aurora60505Illinois
Naperville Police-Crime StprsPolice department+1 630-420-60061350 Aurora Ave, Naperville, IL 60540Naperville60540Illinois
Bolingbrook Police StationPolice+1 630-226-8400631 E Boughton Rd Building 800, Bolingbrook, IL 60440Bolingbrook60440Illinois
North Aurora Police Dept.Police department200 S Lincolnway, North Aurora, IL 60542North Aurora60542Illinois
Naperville Police Animal ControlJustice department+1 630-420-61781340 Aurora Ave, Naperville, IL 60540Naperville60540Illinois

331 Area Code Phone Number Prefix

PrefixXX City Served Date
331-200 Bartlett 7/11/2011
331-201 Downers Grove 1/6/2012
331-202 Elmhurst 1/17/2012
331-203 Aurora 10/12/2011
331-204 Naperville 12/10/2015
331-205 Aurora 10/21/2011
331-206 Aurora 10/12/2011
331-207 Yorkville 11/1/2011
331-208 Aurora 11/8/2011
331-209 Elmhurst 1/17/2012
331-210 St Charles 3/6/2012
331-212 Aurora 4/5/2012
331-213 Naperville 9/6/2011
331-214 Downers Grove 6/20/2012
331-215 Naperville 9/28/2012
331-216 Oswego 10/31/2012
331-217 Lombard 07/11/2023
331-218 Wheaton 7/9/2013
331-219 Aurora 3/16/2017
331-220 Aurora 7/12/2011
331-221 Elmhurst 1/21/2009
331-222 St Charles 10/28/2008
331-223 St Charles 10/28/2008
331-224 Itasca 06/05/2023
331-225 Elmhurst 8/22/2011
331-226 Naperville 3/20/2017
331-227 Sugar Grove 5/17/2016
331-228 St Charles 9/21/2011
331-229 Naperville 11/27/2012
331-230 Aurora 4/5/2017
331-231 Naperville 8/7/2017
331-232 West Chicago 8/8/2017
331-233 Downers Grove 3/13/2017
331-234 Sugar Grove 7/8/2013
331-235 St Charles 10/17/2017
331-236 Wheaton 4/5/2017
331-237 Naperville 11/7/2017
331-238 Downers Grove 12/19/2017
331-239 Yorkville 8/27/2018
331-240 West Chicago 4/10/2013
331-241 Lombard 10/16/2018
331-242 Lombard 10/19/2018
331-243 Lombard 10/19/2018
331-244 Naperville 9/21/2017
331-245 Bartlett 4/18/2013
331-246 Lemont 10/19/2018
331-247 Naperville 11/21/2018
331-248 Geneva 7/6/2007
331-249 Naperville 12/5/2018
331-250 Aurora 4/10/2012
331-251 Downers Grove 12/5/2012
331-252 Warrenville 6/2/2016
331-253 Lemont 10/27/2014
331-254 Sugar Grove 7/16/2014
331-255 Aurora 8/22/2017
331-256 Aurora 9/13/2011
331-257 Aurora 1/17/2020
331-258 Aurora N/A
331-259 Sugar Grove N/A
331-260 Downers Grove 2/25/2019
331-261 Lemont 6/20/2019
331-262 Aurora 7/30/2008
331-263 Itasca 3/11/2016
331-264 Hinsdale 3/6/2020
331-265 Geneva N/A
331-266 St Charles 4/10/2020
331-267 Lombard 9/18/2020
331-268 Sugar Grove 1/14/2021
331-269 Aurora 5/14/2021
331-270 Aurora 7/20/2021
331-271 Hinsdale 10/21/2020
331-272 St Charles 7/15/2021
331-273 Lemont 6/9/2021
331-274 Aurora 8/3/2021
331-275 Bartlett 8/3/2021
331-276 St Charles 11/10/2014
331-277 Lombard 8/6/2021
331-278 Aurora 8/13/2021
331-279 Elmhurst 10/15/2021
331-280 Downers Grove 12/29/2021
331-281 Naperville 10/25/2012
331-282 Hinsdale 12/10/2021
331-283 Geneva 2/23/2022
331-284 Bartlett 3/11/2022
331-285 Naperville 5/4/2022
331-286 St Charles 7/15/2022
331-287 Aurora 7/20/2022
331-288 Elburn 2/17/2022
331-289 Hinsdale 8/12/2022
331-290 Aurora 8/26/2022
331-291 Downers Grove 8/26/2022
331-292 Downers Grove 10/14/2022
331-293 Aurora 01/10/2023
331-294 Naperville 01/12/2023
331-295 Aurora 02/07/2023
331-296 Wheaton 04/18/2023
331-297 Batavia 08/09/2023
331-298 Naperville 08/09/2023
331-299 Hinsdale 1/4/2021
PrefixXX City Served Date
331-300 Aurora 3/17/2016
331-301 Aurora 3/13/2013
331-302 Aurora 2/11/2013
331-303 Elburn N/A
331-304 Bartlett 2/20/2015
331-305 Naperville 8/15/2013
331-306 Downers Grove 09/19/2023
331-307 Lombard 10/13/2014
331-308 Bartlett 12/23/2014
331-309 Lemont 09/26/2023
331-310 Big Rock 12/29/2014
331-313 Naperville 8/16/2022
331-315 Lombard 8/8/2016
331-318 Lemont 8/1/2013
331-321 Aurora 7/20/2015
331-330 Naperville 8/19/2008
331-332 Naperville 11/3/2008
331-333 Naperville 11/3/2008
331-334 Batavia 6/2/2021
331-336 Aurora 10/11/2019
331-341 Plano 3/30/2021
331-343 Downers Grove 01/13/2023
331-345 Naperville 11/18/2020
331-348 Elburn 10/11/2019
331-356 Bartlett 10/10/2019
331-373 Oswego 2/25/2022
331-385 Aurora 9/28/2016
331-388 Sugar Grove 1/25/2021
331-399 Downers Grove 1/22/2021
PrefixXX City Served Date
331-400 Oswego 8/8/2019
331-401 Naperville 12/14/2015
331-422 St Charles 11/13/2008
331-425 Aurora 7/11/2007
331-426 Lemont 2/18/2022
331-431 Aurora 5/26/2010
331-442 St Charles 10/30/2008
331-444 Naperville 8/4/2010
331-452 Aurora 9/20/2007
331-454 Aurora 5/7/2009
331-456 Roselle 12/5/2007
331-457 Naperville 11/14/2008
331-462 Lombard 8/23/2008
331-465 West Chicago 10/17/2007
331-466 Glen Ellyn 2/17/2022
331-472 Naperville 10/22/2008
331-481 Downers Grove 10/29/2008
PrefixXX City Served Date
331-500 Geneva 1/4/2021
331-529 Naperville 8/8/2019
331-551 Lombard 11/5/2008
331-575 Aurora 9/18/2007
331-588 St Charles 2/15/2010
PrefixXX City Served Date
331-600 Wheaton 8/8/2019
331-625 Downers Grove 10/16/2009
331-627 Lombard 2/25/2022
331-631 Downers Grove 7/7/2022
331-642 Elmhurst N/A
331-643 Aurora 9/18/2007
331-645 Elmhurst 11/5/2007
331-666 Aurora 9/29/2017
331-684 Aurora 7/12/2007
331-688 Naperville 2/17/2022
PrefixXX City Served Date
331-701 Naperville 12/11/2014
331-702 Naperville 10/23/2013
331-703 West Chicago 10/24/2013
331-704 Kaneville 4/21/2015
331-707 Aurora 8/23/2016
331-716 Wheaton 1/18/2016
331-717 Oswego 1/18/2016
331-725 Oswego N/A
331-732 Geneva 10/11/2019
331-746 Kaneville 2/17/2022
331-757 Lemont 7/13/2016
331-758 Aurora 10/27/2021
331-771 St Charles 2/10/2016
331-775 Downers Grove 1/4/2016
331-777 Downers Grove 9/22/2010
331-788 Geneva 1/25/2021
PrefixXX City Served Date
331-800 West Chicago 9/29/2017
331-801 Downers Grove 5/15/2014
331-803 Lemont 4/10/2013
331-806 Wheaton 6/11/2015
331-808 Plano 6/5/2015
331-814 Naperville 6/25/2015
331-825 Geneva N/A
331-826 Elmhurst 11/18/2008
331-837 West Chicago 1/7/2022
331-850 Big Rock 3/30/2021
331-866 Wheaton 1/13/2022
331-867 Yorkville 7/14/2020
331-871 West Chicago 2/17/2016
331-888 Warrenville 9/24/2010
331-899 Lombard 12/22/2020
PrefixXX City Served Date
331-900 Elmhurst 8/8/2019
331-901 St Charles 4/23/2015
331-903 Downers Grove 5/15/2014
331-946 Glen Ellyn 7/14/2020
331-979 Elmhurst 3/3/2015
331-980 Aurora 10/13/2014
331-998 Downers Grove 9/16/2015
331-999 Oswego 9/22/2010

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