331 Area Code Lookup: Cities and Phone Numbers

Phone numbers in the 331 area code can be found in 18 cities or locations.

Those phone numbers can be found in the following cities or locations: Aurora, Bartlett, Downers Grove, Elburn, Elmhurst, Geneva, Lemont, Lombard, Naperville, Oswego, Roselle, Saint Charles, Sugar Grove, Warrenville, West Chicago, Wheaton, Yorkville.

The carriers providing phone numbers in this area code are: Ameritech Illinois, Bandwidth.com Clec, Broadvox-clec, Cellco Partnership DBA Verizon Wireless, Cibolo Creek Ventures DBA Routepoint Comm Il, Comcast Phone Of Illinois DBA Comco, Cricket Communications, Digital Network Access Communications, First Communications LLC, Level 3 Communications, Local Access LLC, Mci Worldcom Communications, New Cingular Wireless PCS, Ovation Communications Of Illinois, Peerless Network Of Illinois, Sbc Internet Services, Sigecom, Sprint Spectrum L.p., T-mobile Usa, Teleport Communications America, Xo Illinois.