Area Code 289 at a Glance
| Area code | 289 |
| Region | Ontario |
| Country | Canada |
| Primary timezone | America/Toronto |
| Dialing format | +1 (289) NXX-XXXX |
Cities and Places Using Area Code 289
Based on prefix-level carrier data, area code 289 covers places including:
- Hamilton, ON
- Niagara Falls, ON
- Oshawa, ON
- St. Catharines, ON
- Burlington, ON
- Brampton, ON
Frequently Asked Questions
Where is area code 289?
Area code 289 serves Ontario, Canada.
Who is calling me from area code 289?
A call from area code 289 most likely originates from Ontario, but caller ID can be spoofed. If an unknown caller asks for personal or payment information, hang up and call the organization back on its official number.
How do I dial a 289 number?
Within North America: dial 1-289 followed by the 7-digit number. From abroad: your international prefix (like 00 or +), then 1 289 and the number.