Canadian Area Codes / Ontario
The 742 area code
The 742 area code covers the Greater Toronto Area and Golden Horseshoe, Canada.
Province
Ontario
Time zone
Eastern Time
Country
Canada (+1)
Cities in the 742 area code
Major communities served by 742 include:
Overlay codes for this area
The 742 region shares its territory with these codes — which is why you dial all 10 digits for local calls:
Dialing a 742 number
Within Canada and the United States, dial all ten digits — 742 plus the seven-digit number. Ten-digit dialing is required here because 742 shares its territory with 905, 289, 365. From outside North America, dial +1 742 and then the number.
Is a 742 call spam?
The 742 area code is a legitimate code for the Greater Toronto Area and Golden Horseshoe — it isn't a scam on its own. But because scammers can spoof caller ID to display any area code, an unexpected 742 call isn't guaranteed to be local or genuine. When in doubt, let it go to voicemail and call back using a number you trust.
Want a local 742 number for your business?
Voiswitch provides local 742 numbers on business phone systems — or ports the one you already have. Free quote, no obligation.
742 area code — questions
Where is the 742 area code?
The 742 area code is in Ontario, Canada. It covers the Greater Toronto Area and Golden Horseshoe, including Mississauga, Markham.
What time zone is the 742 area code in?
742 numbers are in the Eastern Time zone.
Is the 742 area code a scam?
No — 742 is a legitimate geographic area code assigned to the Greater Toronto Area and Golden Horseshoe in Ontario. The code itself isn't a scam. That said, scammers can spoof any area code (including 742) to make a call look local, so an unexpected 742 call isn't guaranteed to be genuine or nearby. Treat unsolicited calls with the usual caution no matter what area code shows.
How do you dial a 742 number?
Within Canada and the US, dial all ten digits — 742 followed by the seven-digit number (ten-digit dialing is required because 742 overlaps with 905, 289, 365). From outside North America, dial +1 742 and then the number.
Is 742 an overlay area code?
The 742 area shares the same territory as 905, 289, 365. Because multiple codes overlap, you dial all 10 digits for local calls.
Can I get a 742 number for my business?
Yes — Voiswitch can provide local 742 numbers, and if you already have one, we can port it to your new phone system. Get a free quote to add a local 742 number.