Area Code 331 Details

State : Illinois
Major City : Elmhurst
Timezone : Central

331 is the North American telephone area code for the state of Illinois, including the cities of Addison, Aurora, Bartlett, Batavia, Bensenville, Bloomingdale, Bolingbrook, Carol Stream, Darien, Downers Grove, Elmhurst, Glen Ellyn, Glendale Heights, Hanover Park, Lisle, Lombard, Naperville, Roselle, St. Charles, Streamwood, Villa Park, West Chicago, Westmont, Wheaton, and Woodridge.

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Prefix Primary City Company County Usage
331-200-#### T-mobile Usa Unknown
331-220-#### Sprint Spectrum L.p. Unknown
331-221-#### Elmhurst, IL Ameritech Illinois Unknown
331-222-#### Saint Charles, IL Denali Spectrum License Unknown
331-223-#### Saint Charles, IL Denali Spectrum License Unknown
331-248-#### Geneva, IL Comcast Phone Of Illinois DBA Comco Unknown
331-262-#### Aurora, IL Sprint Spectrum L.p. Unknown
331-330-#### Oswego, IL Denali Spectrum License Unknown
331-332-#### Naperville, IL Denali Spectrum License Unknown
331-333-#### Naperville, IL Denali Spectrum License Unknown
331-422-#### Saint Charles, IL Level 3 Communications Unknown
331-425-#### Aurora, IL T-mobile Usa Unknown
331-431-#### Aurora, IL Bandwidth.com Clec Unknown
331-442-#### Saint Charles, IL Cellco Partnership DBA Verizon Wireless Unknown
331-444-#### Naperville, IL Cygnus Telecommunications Corporation Unknown
331-452-#### Aurora, IL Cellco Partnership DBA Verizon Wireless Unknown
331-454-#### Aurora, IL Denali Spectrum License Unknown
331-456-#### Roselle, IL Globalcom-il Unknown
331-457-#### Naperville, IL Cellco Partnership DBA Verizon Wireless Unknown
331-462-#### Lombard, IL Xo Illinois Unknown
331-465-#### West Chicago, IL New Cingular Wireless PCS Unknown
331-472-#### Naperville, IL T-mobile Usa Unknown
331-481-#### Downers Grove, IL Cellco Partnership DBA Verizon Wireless Unknown
331-551-#### Lombard, IL Denali Spectrum License Unknown
331-552-#### Unknown
331-553-#### Unknown
331-575-#### Aurora, IL Sprint Spectrum L.p. Unknown
331-588-#### Saint Charles, IL New Cingular Wireless PCS Unknown
331-591-#### Elmhurst, IL Unknown
331-625-#### Downers Grove, IL Cellco Partnership DBA Verizon Wireless Unknown
331-642-#### Elmhurst, IL Bandwidth.com Clec Unknown
331-643-#### Aurora, IL Sprint Spectrum L.p. Unknown
331-645-#### Elmhurst, IL Sprint Spectrum L.p. Unknown
331-684-#### Aurora, IL Sigecom Unknown
331-725-#### Oswego, IL New Cingular Wireless PCS Unknown
331-777-#### Downers Grove, IL Cygnus Telecommunications Corporation Unknown
331-825-#### Geneva, IL Digital Network Access Communications Unknown
331-826-#### Elmhurst, IL Sprint Spectrum L.p. Unknown
331-888-#### Warrenville, IL Cygnus Telecommunications Corporation Unknown
331-201-#### Downers Grove Cellco Partnership DBA Verizon Wireless Wireless
331-202-#### Elmhurst Sprint Spectrum L.p. Wireless
331-203-#### Aurora Sprint Spectrum L.p. Wireless
331-204-#### Bartlett Broadvox-clec Landline
331-205-#### Aurora T-mobile Usa Wireless
331-206-#### Aurora Sprint Spectrum L.p. Wireless
331-207-#### Yorkville Level 3 Communications Landline
331-208-#### Aurora Sprint Spectrum L.p. Wireless
331-209-#### Elmhurst Level 3 Communications Wireless
331-210-#### Saint Charles Peerless Network Of Illinois Landline
331-212-#### Aurora Mci Worldcom Communications Landline
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