| District of Michigan area codes: 989 | |
|---|---|
| Country | United States |
| State/Province | Michigan |
| Major City | Saginaw |
| Time Zone | Eastern |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 989-864 | Sanilac | Minden City, MI | Frontier North |
| 989-865 | Saginaw | Saint Charles, MI | Ameritech Michigan |
| 989-866 | Isabella | Mount Pleasant, MI | Winn Telephone Co. |
| 989-867 | Arenac | Twining, MI | Pigeon Telephone Co. |
| 989-868 | Tuscola | Reese, MI | Ameritech Michigan |
| 989-870 | Saginaw | Saginaw, MI | Ameritech Michigan |
| 989-871 | Tuscola | Millington, MI | Wolverine Telephone Co. |
| 989-872 | Tuscola | Cass City, MI | Frontier North |
| 989-873 | Ogemaw | Prescott, MI | Frontier Midstates |
| 989-874 | Huron | Kinde, MI | Centurytel Of Michigan Inc DBA Centurylink |
| 989-875 | Gratiot | Ithaca, MI | Frontier North |
| 989-876 | Arenac | Au Gres, MI | Centurytel Midwest-midwest Inc DBA Centurylink |
| 989-878 | Saginaw | Freeland, MI | New Cingular Wireless PCS - IL |
| 989-879 | Bay | Pinconning, MI | Centurytel Of Michigan Inc DBA Centurylink |
| 989-882 | Tuscola | Vassar, MI | Level 3 Communications |
| 989-883 | Huron | Sebewaing, MI | Ameritech Michigan |
| 989-884 | Alpena | Alpena, MI | Level 3 Communications |
| 989-885 | Clare | Clare, MI | Telnet Worldwide |
| 989-887 | Clinton | Fowler, MI | Sigecom |
| 989-889 | Crawford | Grayling, MI | New Cingular Wireless PCS - IL |
There are 622 prefixes, In the code area, the major cities are Bay City, MI;Harrison, MI;Midland, MI;Mount Pleasa. The major city is Saginaw.