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Naperville, Illinois Area Code |
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Naperville, IL Area Codes are 331 and 630 |
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Naperville, Illinois is currently assigned two area codes 331 and 630. Naperville, IL utilizes an area code overlay in
which area codes 331 and 630 serve the same geographic area. Ten digit dialing (area code + seven digit number) is necessary in Naperville because two different homes in the same geographic area can have the
same seven digit phone number but each would have a different area code. The area code overlay which is in use in Naperville, IL today was put into service on October 7, 2007 when area code 331 was created
as an overlay of area code 630. Area code 630 was put into service in 1996.
In addition to Naperville, IL area codes 331 and 630 serve the major communities of Addison, Aurora, Bartlett, Batavia,
Bensenville, Bloomingdale, Bolingbrook, Carol Stream, Darien, Downers Grove, Elmhurst, Glen Ellyn, Glendale Heights, Hanover Park, Lisle, Lombard, Roselle, St. Charles, Streamwood, Villa Park, West Chicago,
Westmont, Wheaton and Woodridge. |
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Illinois Area Codes |
217, 224, 309, 312, 331, 618, 630, 708, 773, 779, 815, 847, 872 |
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