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331 Area Code

Country:
United States
State:
Illinois
Landlines:
778
Wireless prefixes:
0
Carriers:
21
Counties:
5
Major cities:
Chicago, Hickory Hills, Elgin, Arlington Heights, West Chicago, Willowbrook, Buffalo Grove, Oak Brook, Naperville, Elmhurst

Active phone number prefixes

Prefix City County Carrier Type
1-331-200 Chicago Cook T-mobile Usa, Inc. Other
1-331-201 Elgin Kane Cellco Partnership Dba Verizon Wireless - Il Other
1-331-202 Arlington Heights Cook Sprint Spectrum L.p. Other
1-331-203 Arlington Heights Cook Sprint Spectrum L.p. Other
1-331-204 Chicago Cook Neutral Tandem-illinois, Llc - Il Other
1-331-205 Arlington Heights Cook T-mobile Usa, Inc. Other
1-331-206 Arlington Heights Cook Sprint Spectrum L.p. Other
1-331-207 Chicago Cook Level 3 Communications, Llc - Il Other
1-331-208 Arlington Heights Cook Sprint Spectrum L.p. Other
1-331-209 Chicago Cook Level 3 Communications, Llc - Il Other
1-331-210 West Chicago DuPage Peerless Network Of Illinois, Llc - Il Other
1-331-212 Hickory Hills Cook Mci Worldcom Communications, Inc. - Il Other
1-331-213 Hickory Hills Cook Cellco Partnership Dba Verizon Wireless - Il Other
1-331-214 Elgin Kane Cellco Partnership Dba Verizon Wireless - Il Other
1-331-215 Hickory Hills Cook Cellco Partnership Dba Verizon Wireless - Il Other
1-331-216 Willowbrook DuPage New Cingular Wireless Pcs, Llc - Il Other
1-331-218 Chicago Cook T-mobile Usa, Inc. Other
1-331-220 Arlington Heights Cook Sprint Spectrum L.p. Other
1-331-221 Elmhurst DuPage Ameritech Illinois Other
1-331-222 West Chicago DuPage New Cingular Wireless Pcs, Llc - Il Other
1-331-223 Elgin Kane New Cingular Wireless Pcs, Llc - Il Other
1-331-225 Arlington Heights Cook Sprint Spectrum L.p. Other
1-331-227 Hickory Hills Cook Cellco Partnership Dba Verizon Wireless - Il Other
1-331-228 Chicago Cook Ovation Communications Of Illinois, Inc. Other
1-331-229 Hickory Hills Cook Cellco Partnership Dba Verizon Wireless - Il Other
1-331-234 Hickory Hills Cook Cellco Partnership Dba Verizon Wireless - Il Other
1-331-240 Chicago Cook Peerless Network Of Illinois, Llc - Il Other
1-331-245 Chicago Cook T-mobile Usa, Inc. Other
1-331-248 Chicago Cook Comcast Phone Of Illinois, Llc Dba Comco - Il Other
1-331-250 Chicago Cook T-mobile Usa, Inc. Other
1-331-251 Elgin Kane Cellco Partnership Dba Verizon Wireless - Il Other
1-331-252 Oak Brook DuPage Teleport Communications America, Llc - Il Other
1-331-253 Elgin Kane T-mobile Usa, Inc. Other
1-331-254 Chicago Cook T-mobile Usa, Inc. Other
1-331-256 Chicago Cook Cellco Partnership Dba Verizon Wireless - Il Other
1-331-262 West Chicago DuPage Sprint Spectrum L.p. Other
1-331-263 Chicago Cook Neutral Tandem-illinois, Llc - Il Other
1-331-276 West Chicago DuPage Cellco Partnership Dba Verizon Wireless - Il Other
1-331-281 Naperville DuPage Ameritech Illinois Other
1-331-300 Chicago Cook T-mobile Usa, Inc. Other
1-331-301 Chicago Cook Local Access Llc - Il Other
1-331-302 Hickory Hills Cook Cellco Partnership Dba Verizon Wireless - Il Other
1-331-303 Chicago Cook Cibolo Creek Ventures, Llc Dba Routepoint Comm Il Other
1-331-304 Chicago Cook T-mobile Usa, Inc. Other
1-331-305 Hickory Hills Cook Cellco Partnership Dba Verizon Wireless - Il Other
1-331-307 Chicago Cook T-mobile Usa, Inc. Other
1-331-308 Chicago Cook Bandwidth.com Clec, Llc - Il Other
1-331-310 Chicago Cook Bandwidth.com Clec, Llc - Il Other
1-331-315 Willowbrook DuPage New Cingular Wireless Pcs, Llc - Il Other
1-331-318 Chicago Cook Local Access Llc - Il Other
1-331-321 Chicago Cook T-mobile Usa, Inc. Other
1-331-330 Buffalo Grove Lake New Cingular Wireless Pcs, Llc - Il Other
1-331-332 Naperville DuPage New Cingular Wireless Pcs, Llc - Il Other
1-331-333 Chicago Cook New Cingular Wireless Pcs, Llc - Il Other
1-331-385 Chicago Cook New Cingular Wireless Pcs, Llc - Il Other
1-331-401 Chicago Cook Level 3 Communications, Llc - Il Other
1-331-422 Chicago Cook Level 3 Communications, Llc - Il Other
1-331-425 Chicago Cook T-mobile Usa, Inc. Other
1-331-431 Chicago Cook Bandwidth.com Clec, Llc - Il Other
1-331-442 Elgin Kane Cellco Partnership Dba Verizon Wireless - Il Other
1-331-444 Hickory Hills Cook Cellco Partnership Dba Verizon Wireless - Il Other
1-331-452 Hickory Hills Cook Cellco Partnership Dba Verizon Wireless - Il Other
1-331-454 West Chicago DuPage New Cingular Wireless Pcs, Llc - Il Other
1-331-456 Chicago Cook First Communications Llc - Il Other
1-331-457 Hickory Hills Cook Cellco Partnership Dba Verizon Wireless - Il Other
1-331-462 Oak Brook DuPage Xo Illinois, Inc. Other
1-331-465 Chicago Cook New Cingular Wireless Pcs, Llc - Il Other
1-331-472 Chicago Cook T-mobile Usa, Inc. Other
1-331-481 Elgin Kane Cellco Partnership Dba Verizon Wireless - Il Other
1-331-551 Willowbrook DuPage New Cingular Wireless Pcs, Llc - Il Other
1-331-575 West Chicago DuPage Sprint Spectrum L.p. Other
1-331-588 West Chicago DuPage New Cingular Wireless Pcs, Llc - Il Other
1-331-625 Elgin Kane Cellco Partnership Dba Verizon Wireless - Il Other
1-331-642 Chicago Cook Bandwidth.com Clec, Llc - Il Other
1-331-643 Arlington Heights Cook Sprint Spectrum L.p. Other
1-331-645 Arlington Heights Cook Sprint Spectrum L.p. Other
1-331-684 Naperville DuPage Sigecom, Llc Dba Wow Internet Cable And Phone Other
1-331-701 Hickory Hills Cook Cellco Partnership Dba Verizon Wireless - Il Other
1-331-702 Elk Grove Village Cook Mci Worldcom Communications, Inc. - Il Other
1-331-703 Buffalo Grove Lake T-mobile Usa, Inc. Other
1-331-704 Chicago Cook Bandwidth.com Clec, Llc - Il Other
1-331-707 Chicago Cook T-mobile Usa, Inc. Other
1-331-716 Chicago Cook Broadvox-clec, Llc - Il Other
1-331-717 Willowbrook DuPage New Cingular Wireless Pcs, Llc - Il Other
1-331-725 Willowbrook DuPage New Cingular Wireless Pcs, Llc - Il Other
1-331-757 Elgin Kane T-mobile Usa, Inc. Other
1-331-771 Chicago Cook Neutral Tandem-illinois, Llc - Il Other
1-331-775 Elgin Kane Comcast Phone Of Illinois, Llc Dba Comco - Il Other
1-331-777 Chicago Cook Cellco Partnership Dba Verizon Wireless - Il Other
1-331-801 Oak Brook DuPage Teleport Communications America, Llc - Il Other
1-331-803 Chicago Cook Peerless Network Of Illinois, Llc - Il Other
1-331-806 Chicago Cook Comcast Phone Of Illinois, Llc Dba Comco - Il Other
1-331-808 Chicago Cook Bandwidth.com Clec, Llc - Il Other
1-331-814 Chicago Cook T-mobile Usa, Inc. Other
1-331-825 Digital Network Access Communications, Inc. - Il Other
1-331-826 Arlington Heights Cook Sprint Spectrum L.p. Other
1-331-871 Buffalo Grove Lake Neutral Tandem-illinois, Llc - Il Other
1-331-888 Chicago Cook Peerless Network Of Illinois, Llc - Il Other
1-331-901 West Chicago DuPage Bandwidth.com Clec, Llc - Il Other
1-331-903 Buffalo Grove Lake At&t Corp. Other
1-331-979 Chicago Cook Comcast Phone Of Illinois, Llc Dba Comco - Il Other
1-331-980 Chicago Cook T-mobile Usa, Inc. Other
1-331-998 Elgin Kane Cellco Partnership Dba Verizon Wireless - Il Other
1-331-999 Chicago Cook Bandwidth.com Clec, Llc - Il Other