| 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 |
|---|---|---|
| 289-236 | Woodbridge | Landline |
| 289-601 | Fisherville | Landline |
| 289-319 | Newmarket | Landline |
| 289-768 | Hamilton | Landline |
| 289-617 | Gormley | Landline |
| 289-228 | Saint Catharines Thorold | Wireless |
| 289-431 | Waterdown | Landline |
| 289-392 | Unionville | Landline |
| 289-285 | Caledonia | Landline |
| 289-752 | Brampton | Landline |
| 289-968 | Saint Catharines Thorold | Wireless |
| 289-847 | Port Credit | Landline |
| 289-448 | Stoney Creek | Landline |
| 289-449 | Welland | Landline |
| 289-939 | Oshawa | Wireless |
| 289-538 | Richmond Hill | Landline |
| 289-397 | Stevensville | Landline |
| 289-579 | Newmarket | Landline |
| 289-244 | Hamilton | Wireless |
| 289-382 | Hamilton | Wireless |