Coverage Map
Interactive
Showing coverage area for Area Code 231 in Michigan.
Top Cities
| City Name | Type |
|---|---|
| Detroit | Principal |
| New Creekcity | Principal |
| Valleyland | Principal |
| Havenfield | Principal |
| North Riverland | Principal |
| Brookpark | Principal |
| Springport | Principal |
| New Fallspark | Principal |
| Rivermouth | Principal |
| Fieldcity | Principal |
| Fieldside | Principal |
| Waterwood | Principal |
| Riverfield | Principal |
| New Fallspark | Principal |
| Valleypark | Principal |
| Fort Hillwood | Principal |
| Woodwood | Principal |
| New Ridgeton | Principal |
| Ridgemouth | Principal |
| Springfield | Principal |
| Lake Woodburg | Principal |
| Grand Woodwood | Principal |
| Creekpark | Principal |
| Valleyfield | Principal |
| Springfield | Principal |
| Springview | Principal |
| Waterland | Principal |
| Riverland | Principal |
| East Ridgeside | Principal |
| Old Havencity | Principal |
Counties Served
| County | State |
|---|---|
| Havenwood County | Michigan |
| South Valleyport County | Michigan |
| Riverland County | Michigan |
| Ridgeville County | Michigan |
| Grand Fieldport County | Michigan |
Active Phone Prefixes
Recently Assigned
| Prefix | Usage | Location | Carrier |
|---|---|---|---|
| 231-205 | Landline | Greater Metro Area | AT&T |
| 231-645 | Landline | Greater Metro Area | Sprint |
| 231-228 | Landline | Greater Metro Area | Sprint |
| 231-264 | Landline | Greater Metro Area | Verizon Wireless |
| 231-969 | Mobile | Greater Metro Area | T-Mobile |
| 231-815 | Landline | Greater Metro Area | Sprint |
| 231-971 | Landline | Greater Metro Area | AT&T |
| 231-470 | Landline | Greater Metro Area | T-Mobile |
| 231-706 | Landline | Greater Metro Area | Verizon Wireless |
| 231-757 | Mobile | Greater Metro Area | AT&T |
| 231-740 | Landline | Greater Metro Area | Sprint |
| 231-505 | Landline | Greater Metro Area | T-Mobile |
| 231-969 | Landline | Greater Metro Area | Sprint |
| 231-676 | Landline | Greater Metro Area | Sprint |
| 231-887 | Landline | Greater Metro Area | T-Mobile |
| 231-511 | Landline | Greater Metro Area | Verizon Wireless |
| 231-758 | Mobile | Greater Metro Area | AT&T |
| 231-356 | Landline | Greater Metro Area | Verizon Wireless |
| 231-960 | Mobile | Greater Metro Area | Sprint |
| 231-661 | Landline | Greater Metro Area | Sprint |
| 231-432 | Mobile | Greater Metro Area | AT&T |
| 231-810 | Landline | Greater Metro Area | Sprint |
| 231-273 | Landline | Greater Metro Area | Sprint |
| 231-553 | Mobile | Greater Metro Area | AT&T |
| 231-936 | Landline | Greater Metro Area | Sprint |
| 231-493 | Mobile | Greater Metro Area | AT&T |
| 231-208 | Mobile | Greater Metro Area | Sprint |
| 231-437 | Landline | Greater Metro Area | T-Mobile |
| 231-958 | Landline | Greater Metro Area | Sprint |
| 231-286 | Landline | Greater Metro Area | T-Mobile |