Area code 773-991 is assigned to Chicago, IL.
Phone type: Cell Number
Operator: Sprint Spectrum L.p.
Chicago, the third most populous city in the United States, after New York City and Los Angeles. With 2.7 million residents, it is the most populous city in both the U.S. state of Illinois and the American Midwest. Its metropolitan area, sometimes called Chicagoland, is home to 9.5 million people and is the third-largest in the United States. Chicago is the seat of Cook County, although a small part of the city extends into DuPage County. source
Area code 773 went into effect in the city of Chicago, Illinois, on October 12, 1996, with a brief grace period that ended on January 11, 1997. The area code covers the city, excluding the downtown core. source
Phone number full length is 10 digits: (773) 991-xxxx
International format length is 11 digits: +1 (773) 991-xxxx
Number can be also written as: 773-991, 773991, +1-773-991
Most requested numbers in the neighborhood:
773-991-3204, 773-991-4278, 773-991-3157, 773-991-7823, 773-991-5676