| General Information about Area Code 289 | |
|---|---|
| Country | Canada |
| State / Province / Territory | Ontario |
| Major City | Unionville |
| Time Zone | Eastern (UTC-05:00) |
| Prefix | Primary City | Phone Type |
|---|---|---|
| 289-216 | Kleinburg | Landline |
| 289-640 | Uxbridge | Landline |
| 289-955 | Victoria | Landline |
| 289-786 | Saint Catharines Thorold | Landline |
| 289-366 | Newmarket | Landline |
| 289-917 | Maple | Landline |
| 289-724 | Cooksville | Landline |
| 289-978 | Hamilton | Landline |
| 289-475 | Richmond Hill | Landline |
| 289-924 | Georgetown | Wireless |
| 289-755 | Hamilton | Landline |
| 289-904 | Malton | Landline |
| 289-428 | Georgetown | Landline |
| 289-424 | Binbrook | Landline |
| 289-596 | Woodbridge | Landline |
| 289-716 | Newmarket | Wireless |
| 289-406 | Brampton | Landline |
| 289-355 | Oshawa | Wireless |
| 289-982 | Thornhill | Landline |
| 289-945 | Clarkson | Landline |