🇨🇦 905 area code
Area code 905 covers Ontario, Mississauga, Hamilton and Brampton and the surrounding area in Ontario, Canada. It shares that territory with 289, 365 and 742, so the same neighbourhood can have numbers in any of them. Enter a 905 number below for a free check before you call back.
- Location: Ontario
- Time zone: Eastern (UTC−5)
- In service since October 4, 1993
Consultar um número
Validade, operadora, tipo de linha e região na primeira passagem.
Area code 905 at a glance
- Area code
- 905
- Location
- Ontario, Canada
- Main cities
- Ontario, Mississauga, Hamilton, Brampton, Oakville, Oshawa
- Time zone
- Eastern (UTC−5)
- Local time now
- —
- In service since
- October 4, 1993
- Created from
- 416
- Overlay codes
- 289, 365, 742
- Codes split from it
- 289, 365, 742
- Local calls
- Dial 10 digits
- Number format
- (905) 555-0123
- From abroad
- +1 905 555 0123
Cities in area code 905
- Ontario
- Mississauga
- Hamilton
- Brampton
- Oakville
- Oshawa
- St. Catharines
- Markham
- Newmarket
- Burlington
Is a 905 call a scam?
An area code tells you where a number was first assigned, not where the caller is. Mobile numbers keep their area code when people move, and internet (VoIP) numbers can be picked in any area code — so a 905 number can be calling from anywhere.
Robocallers exploit that with "neighbor spoofing": showing a 905 number to people in Ontario because a local-looking call is more likely to be answered. If a 905 call claims to be your bank, the IRS or the CRA or a delivery company, hang up and call the official number yourself.
About area code 905
905 entered service on October 4, 1993, when it was split from 416.
It is part of the 289/365/742/905 overlay: the codes cover the same area, and a new line there can be given a number in any of them. Two neighbours — or two phones in one household — can have different area codes. That is also why local calls need the full ten digits.
As the region grew, 289, 365 and 742 were carved out of or added to 905.
Perguntas frequentes
Area code 905 questions
Sources: NANPA NPA database (11/04/2026) and Google libphonenumber. Area codes show where a number was assigned, not where its owner is today.
Where is area code 905?
Area code 905 is in Ontario, Canada. It covers Ontario, Mississauga, Hamilton, Brampton, Oakville and Oshawa.
What time zone is area code 905?
905 is in the Eastern (UTC−5) time zone, and observes daylight saving time.
What area codes overlay 905?
289, 365 and 742 serve the same area as 905. Numbers in all of them are local to one another.
When did area code 905 start?
905 entered service on October 4, 1993, created from 416.
How do I find out who called me from 905?
Enter the full number in the lookup at the top of this page. The free check confirms whether the number is valid and shows its carrier, line type and region; a full report adds owner and public-web records where they are available.
Why am I getting calls from area code 905?
If you live in or near Ontario, they may be genuinely local — or robocalls spoofing a local-looking number. Unknown 905 callers who will not leave a message are best looked up before you call back.
Got a call from 905?
Run the free check first — validity, carrier, line type and region — and unlock the full report only if you need it.