Area Code 331

331 is the North American Telephone Area Code For Illinois in United States.
District of Illinois area codes: 331
Country United States
State/Province Illinois
Major City Lemont
Time Zone Central

Phone directory with area code 331

Prefix County Primary City Company
331-643 Kane Aurora, IL Sprint Spectrum L.p.
331-645 Dupage Elmhurst, IL Sprint Spectrum L.p.
331-684 Kane Aurora, IL Sigecom
331-702 Dupage Naperville, IL Mci Worldcom Communications
331-703 Dupage West Chicago, IL T-mobile Usa
331-725 Kendall Oswego, IL New Cingular Wireless PCS
331-777 Dupage Downers Grove, IL Cellco Partnership DBA Verizon Wireless
331-801 Teleport Communications America
331-803 Cook Lemont, IL Peerless Network Of Illinois
331-825 Digital Network Access Communications
331-826 Dupage Elmhurst, IL Sprint Spectrum L.p.
331-888 Dupage Warrenville, IL Peerless Network Of Illinois
331-903 Sbc Internet Services
331-999 Kendall Oswego, IL Bandwidth.com Clec
331-555 Used in movie Bartlett, IL Used in movie
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There are 75 prefixes, In the code area, the major cities are Addison, IL;Aurora, IL;Bartlett, IL;Batavia, IL;Be. The major city is Lemont.

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814-643-3372, Huntingdon, PA, United States
817-786-2658, Irving, TX, United States
856-802-9664, Moorestown, NJ, United States
917-855-1882, New York, NY, United States
973-330-1586, Passaic, NJ, United States
973-457-2363, Newark, NJ, United States