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Downers Grove, Illinois Area Code |
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Downers Grove, IL Area Codes are 331 and 630 |
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Downers Grove, Illinois is currently assigned two area codes 331 and 630. Downers Grove, 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 Downers Grove 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 Downers Grove, 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 Downers Grove, IL area codes 331 and 630 serve the major communities of Addison, Aurora,
Bartlett, Batavia, Bensenville, Bloomingdale, Bolingbrook, Carol Stream, Darien, 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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Illinois Area Codes |
217, 224, 309, 312, 331, 618, 630, 708, 773, 779, 815, 847, 872 |
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