Area Codes
| 734 | Michigan (Ann Arbor, Canton, Plymouth, Monroe, Wayne, Ypsilanti, Romulus and southwestern Detroit suburbs) | More information at: Area Code 734 Phone Number Blocks
| 734 | Michigan (Ann Arbor, Canton, Plymouth, Monroe, Wayne, Ypsilanti, Romulus and southwestern Detroit suburbs) | More information at: Area Code 734 Phone Number Blocks