Union Star, Missouri Area Code
Union Star, MO is officially utilizing area codes 816 and 975.
In addition to Union Star, MO area code information read more about area codes 816 and 975 details and Missouri area codes.
Union Star, MO is located in DeKalb County and observes the Central Time Zone.
View our Times by Area Code tool.
Area Codes Look Up By State and City
Area Codes Look Up in Surrounding Places