Active Prefixes in Area Code 289
| Prefix | Primary City | Phone Type | Company |
|---|---|---|---|
| 289-918-#### | Oshawa | Landline | Distributel... |
| 289-919-#### | Hamilton | Landline | Distributel... |
| 289-920-#### | Hamilton | Wireless | Rogers Communication... |
| 289-921-#### | Hamilton | Wireless | Rogers Communication... |
| 289-922-#### | Hamilton | Wireless | Rogers Communication... |
| 289-923-#### | Ajax-Pickering | Wireless | Rogers Communication... |
| 289-924-#### | Georgetown | Wireless | Rogers Communication... |
| 289-925-#### | Hamilton | Wireless | Rogers Communication... |
| 289-926-#### | Newmarket | Wireless | Rogers Communication... |
| 289-927-#### | Oshawa | Wireless | Rogers Communication... |
| 289-928-#### | Oshawa | Wireless | Rogers Communication... |
| 289-929-#### | Saint Catharines-Thorold | Wireless | Rogers Communication... |
| 289-930-#### | Milton | Wireless | Telus Mobility... |
| 289-931-#### | Saint Catharines-Thorold | Wireless | Telus Mobility... |
| 289-932-#### | Niagara Falls | Landline | Fibernetics Corporat... |
| 289-933-#### | Hamilton | Wireless | Telus Mobility... |
| 289-934-#### | Newmarket | Wireless | Telus Mobility... |
| 289-935-#### | Georgetown | Wireless | Telus Mobility... |
| 289-936-#### | Oakville | Wireless | Rogers Communication... |
| 289-937-#### | Oakville | Wireless | Rogers Communication... |
| 289-938-#### | Burlington | Wireless | Telus Mobility... |
| 289-939-#### | Oshawa | Wireless | Telus Mobility... |
| 289-940-#### | Oakville | Landline | Globalive Wireless M... |
| 289-941-#### | Hamilton | Landline | Globalive Wireless M... |
| 289-943-#### | Oshawa | Landline | Globalive Wireless M... |
| 289-946-#### | Brampton | Landline | Globalive Wireless M... |
| 289-947-#### | Richmond Hill | Landline | Globalive Wireless M... |
| 289-948-#### | Brampton | Landline | Distributel... |
| 289-949-#### | Hamilton | Landline | Distributel... |
| 289-952-#### | Oakville | Wireless | Rogers Communication... |
Area Code 289 Introduction
| Area Code: | 289 |
| Country: | Canada |
| State/Province: | Ontario |
| Major City: | Mississauga |
| Time Zone: | Eastern |
| About 289 : | |
| Southern Ontario, Canada is served by area code 289, which was created as an overlay to 905 in 2001. 289 coverage area includes the Niagara Peninsula, Hamilton, Oshawa, and the suburban Toronto area. |
|
| Major cities or places | |
| Area codes 905, 289 and 365 cover a portion of southern Ontario including Niagara Falls and the Greater Toronto Area, and the larger communities of Ajax, Ancaster, Aurora, Brampton, Burlington, Caledon, Cobourg, Dunnville, Fort Erie, Georgetown, Hamilton, King Township, Maple, Markham, Milton, Mississauga, Newmarket, Oshawa, Richmond Hill, St. Catharines, Stoney Creek, Thornhill, Unionville, Welland, Woodbridge and many smaller surrounding communities | |