What area code is Thornhill, ON?
| City | Thornhill, ON |
|---|---|
| Province | Ontario |
| Area codes | 905, 365 and 742 |
| Time zone | Eastern Time |
| Phone prefixes | 3 in our data |
Look up a Thornhill number
Thornhill’s area codes
| Area code | Also covers |
|---|---|
| 905 | Mississauga, Hamilton, Brampton and Oakville |
| 365 | Mississauga, Hamilton, Brampton and Oakville (overlay) |
| 742 | Mississauga, Hamilton, Brampton and Oakville (overlay) |
Other places in area code 905
- Mississauga, ON
- Hamilton, ON
- Brampton, ON
- Oakville, ON
- Oshawa, ON
- St. Catharines, ON
- Markham, ON
- Newmarket, ON
- Burlington, ON
- Richmond Hill, ON
- Ajax, ON
- Niagara Falls, ON
- Woodbridge, ON
- Aurora, ON
- Milton, ON
- Pickering, ON
- Concord, ON
- Welland, ON
- Whitby, ON
- Cobourg, ON
- Georgetown, ON
- Maple, ON
- Stoney Creek, ON
- Ancaster, ON
Questions
- What is the area code for Thornhill, Ontario?
- Thornhill uses 3 area codes: 905, 365 and 742. 905 is the original or most common one, and newer numbers can be given 365 and 742.
- What time zone is Thornhill in?
- Thornhill is in Eastern Time.
- Do I need to dial the area code for a local call in Thornhill?
- Yes. Because Thornhill has more than one area code, local calls need all 10 digits: the area code plus the 7-digit number.
- How do I call Thornhill from another country?
- Dial your country’s exit code (011 from most places, 00 from Europe), then 1, then the area code and number: +1 905 XXX XXXX.