Area Code 331

 
Area Code 331 Select Prefixes
331 is the area code for portions of Chicago's near and far western suburbs. It is overlaid with area code 630 making 10-digit dialing required in these areas.
Area Code : 331
State : Illinois
Timezoon : Central
Major City : Elmhurst
 
Main Cities on 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
 

Area Code 331 Prefixes

PrefixLinksPrimary CityService ProviderLine Type
200(331) 200-ABCD T-mobile UsaUnknown
220(331) 220-ABCD Sprint Spectrum L.p.Unknown
221(331) 221-ABCD Elmhurst, ILAmeritech IllinoisUnknown
222(331) 222-ABCD Saint Charles, ILDenali Spectrum LicenseUnknown
223(331) 223-ABCD Saint Charles, ILDenali Spectrum LicenseUnknown
248(331) 248-ABCD Geneva, ILComcast Phone Of Illinois DBA ComcoUnknown
262(331) 262-ABCD Aurora, ILSprint Spectrum L.p.Unknown
330(331) 330-ABCD Oswego, ILDenali Spectrum LicenseUnknown
332(331) 332-ABCD Naperville, ILDenali Spectrum LicenseUnknown
333(331) 333-ABCD Naperville, ILDenali Spectrum LicenseUnknown
422(331) 422-ABCD Saint Charles, ILLevel 3 CommunicationsUnknown
444(331) 444-ABCD Naperville, ILCygnus Telecommunications CorporationUnknown
442(331) 442-ABCD Saint Charles, ILCellco Partnership DBA Verizon WirelessUnknown
431(331) 431-ABCD Aurora, ILBandwidth.com ClecUnknown
425(331) 425-ABCD Aurora, ILT-mobile UsaUnknown
999(331) 999-ABCD Oswego, ILCygnus Telecommunications CorporationUnknown
888(331) 888-ABCD Warrenville, ILCygnus Telecommunications CorporationUnknown
826(331) 826-ABCD Elmhurst, ILSprint Spectrum L.p.Unknown
825(331) 825-ABCD Geneva, ILDigital Network Access CommunicationsUnknown
777(331) 777-ABCD Downers Grove, ILCygnus Telecommunications CorporationUnknown
725(331) 725-ABCD Oswego, ILNew Cingular Wireless PCSUnknown
684(331) 684-ABCD Aurora, ILSigecomUnknown
645(331) 645-ABCD Elmhurst, ILSprint Spectrum L.p.Unknown
643(331) 643-ABCD Aurora, ILSprint Spectrum L.p.Unknown
642(331) 642-ABCD Elmhurst, ILBandwidth.com ClecUnknown
625(331) 625-ABCD Downers Grove, ILCellco Partnership DBA Verizon WirelessUnknown
591(331) 591-ABCD Elmhurst, ILUnknown
588(331) 588-ABCD Saint Charles, ILNew Cingular Wireless PCSUnknown
575(331) 575-ABCD Aurora, ILSprint Spectrum L.p.Unknown
553(331) 553-ABCD Unknown
552(331) 552-ABCD Unknown
551(331) 551-ABCD Lombard, ILDenali Spectrum LicenseUnknown
481(331) 481-ABCD Downers Grove, ILCellco Partnership DBA Verizon WirelessUnknown
472(331) 472-ABCD Naperville, ILT-mobile UsaUnknown
465(331) 465-ABCD West Chicago, ILNew Cingular Wireless PCSUnknown
462(331) 462-ABCD Lombard, ILXo IllinoisUnknown
457(331) 457-ABCD Naperville, ILCellco Partnership DBA Verizon WirelessUnknown
456(331) 456-ABCD Roselle, ILGlobalcom-ilUnknown
454(331) 454-ABCD Aurora, ILDenali Spectrum LicenseUnknown
452(331) 452-ABCD Aurora, ILCellco Partnership DBA Verizon WirelessUnknown