These are the primary telephone area codes for Oakville and the Greater Toronto Area (GTA) suburbs in southern Ontario.
How to Call Oakville from Overseas
- Dial your country's exit code (International Access Code)
- Dial 1 (Canada country code)
- Dial the area code (905, 289, or 365)
- Dial the 7-digit local phone number
Example: Calling Oakville from the UK
00 1 905 555 1234
Where:
00 = UK exit code
1 = Canada country code
905 = Oakville area code
555 1234 = Local Oakville phone number
Quick Facts
Oakville Area Code Coverage
These area codes serve Oakville and surrounding communities in Halton Region:
905 - Original GTA West
Oakville, Burlington, Mississauga, Brampton, Hamilton
289 - First Overlay (2001)
Added province-wide to address 905 number exhaustion
365 - Second Overlay (2013)
Supports continued growth in the Halton-Peel corridor
Downtown Oakville
Lakeshore Road, historic core, Oakville Harbour
North Oakville
Bronte, Morrison, Trafalgar Road corridor
East Oakville
Boundary with Mississauga, Winston Churchill Blvd area
Major Canadian Area Codes
Common Exit Codes for Calling Canada
When calling Oakville from these countries, use these exit codes:
United Kingdom
00
Australia
0011
European Union
00
Japan
010
China
00
United States
011