– phone area 779-400
📌Dekalb, IL
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Area code 779-400 is assigned to Dekalb, IL.

Main city: Dekalb
Timezone: Central
Phone type: Unknown
Operator: Ymax Communications Corp.

DeKalb, a city in DeKalb County, Illinois, United States, in Chicagoland. The population was 43,862 according to the 2010 census. The city is named after decorated German war hero Johann de Kalb, who died during the American Revolutionary War. source

Area code 815 is a telephone area code for most of northern Illinois outside of the Chicago and Quad Cities areas. source

Phone number full length is 10 digits: (779) 400-xxxx

International format length is 11 digits: +1 (779) 400-xxxx

Number can be also written as: 779-400, 779400, +1-779-400

Most requested numbers in the neighborhood:
779-400-4901, 779-400-5576, 779-400-5677, 779-400-7843, 779-400-6651