Area code 231

Area code 231 is a geographic code in the North American Numbering Plan. This region spans more than one time zone.

Other area codes in Michigan: 248, 269, 313, 517, 586, 616, 679, 734, 810, 906, 947, 989.

Is a call from 231 local?

Not necessarily. People keep their numbers when they move, internet phone numbers can be used anywhere, and robocallers often spoof local-looking numbers. Learn about spoofing.