| General Information about Area Code 641 | |
|---|---|
| Country | United States |
| State / Province / Territory | Iowa |
| Major City | Mason City |
| Time Zone | Central (UTC-06:00) |
| Prefix | Primary City | County | Phone Type |
|---|---|---|---|
| 641-863 | Britt | Hancock | Wireless |
| 641-523 | Corydon | Wayne | Landline |
| 641-820 | Knoxville | Marion | Wireless |
| 641-754 | Marshalltown | Marshall | Landline |
| 641-570 | Little Cedar | Mitchell | Landline |
| 641-869 | Wellsburg | Grundy | Landline |
| 641-962 | Riceville | Howard | Landline |
| 641-366 | Conrad | Grundy | Landline |
| 641-982 | Riceville | Howard | Landline |
| 641-767 | Redding | Ringgold | Landline |
| 641-209 | Fairfield | Jefferson | Landline |
| 641-891 | Knoxville | Marion | Wireless |
| 641-661 | Ollie | Keokuk | Landline |
| 641-632 | Rose Hill | Mahaska | Landline |
| 641-765 | Truro | Madison | Landline |
| 641-421 | Mason City | Cerro Gordo | Landline |
| 641-896 | Hanlontown | Worth | Landline |
| 641-732 | Little Cedar | Mitchell | Landline |
| 641-322 | Corning | Adams | Landline |
| 641-792 | Newton | Jasper | Landline |