What is what area code is 734?

Area code 734 is a telephone area code in the North American Numbering Plan (NANP) for the southeastern part of the state of Michigan, including the cities of Ann Arbor, Ypsilanti, the western and southern parts of Wayne County, and parts of Southeast Michigan. The area code was assigned in 1997 when it split from area code 313. Area code 734 covers an area of approximately 1,000 square miles and serves a population of over 1 million people.