| 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 |
|---|---|---|---|
| 641-436 | Centerville | Appanoose | Wireless |
| 641-856 | Centerville | Appanoose | Landline |
| 641-444 | Belmond | Wright | Landline |
| 641-638 | Oskaloosa | Mahaska | Wireless |
| 641-390 | Northwood | Worth | Wireless |
| 641-788 | Blockton | Taylor | Landline |
| 641-936 | Douds | Van Buren | Landline |
| 641-218 | Knoxville | Marion | Wireless |
| 641-895 | Centerville | Appanoose | Wireless |
| 641-746 | Casey | Guthrie | Landline |
| 641-452 | Unionville | Appanoose | Landline |
| 641-826 | Little Cedar | Mitchell | Landline |
| 641-530 | Mason City | Cerro Gordo | Wireless |
| 641-223 | Osceola | Clarke | Wireless |
| 641-512 | Mason City | Cerro Gordo | Wireless |
| 641-937 | Agency | Wapello | Landline |
| 641-323 | Northwood | Worth | Landline |
| 641-659 | Grinnell | Poweshiek | Landline |
| 641-385 | Collins | Story | Landline |
| 641-340 | Osceola | Clarke | Wireless |