742 area code
Brampton area, Eastern Time.Area code 742 covers Brampton, Hamilton, St. Catharines-Thorold and 65 more places in Ontario, on Eastern Time. 289, 365 and 905 cover the same area.
Right now in Brampton
Eastern Time (EST, UTC-5; EDT, UTC-4 in summer)
Calling hours: Mon to Fri, 9 AM to 9:30 PM · Sat to Sun, 10 AM to 6 PM (Canada's CRTC rules)
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Where 742 numbers come from
Numbers are issued by rate center, a billing area named for its main town. 742 has 68. Each one's share is how many 742 numbers start there.
- Brampton7%
- Hamilton5%
- St. Catharines-Thorold5%
- Ajax-Pickering4%
- Markham3%
- Oshawa2%
- Cooksville2%
- Thornhill2%
- Streetsville2%
- Newmarket2%
- Richmond Hill2%
- Niagara Falls2%
Also: Cobourg, Uxbridge, Pelham, Wainfleet, Burlington, Aurora, Malton, Unionville, Milton, Woodbridge, Maple, Clarkson + 44 more
Share of exchanges (blocks of 10,000 numbers). Source: NANPA rate center and exchange reports, November 10, 2026
When can you call a 742 number?
Sales calls to homes and cell phones have legal hours, set by Canada's CRTC rules. Hold every 742 number to them, since you can't tell a work line from a personal cell.
What applies to 742Mon to Fri, 9 AM to 9:30 PM · Sat to Sun, 10 AM to 6 PM
- Canada (CRTC)Mon to Fri, 9 AM to 9:30 PM · Sat to Sun, 10 AM to 6 PMApplies to calls to businesses too. Some provinces add rules the tool doesn't apply, like British Columbia's ban on calls on statutory holidays.CRTC Unsolicited Telecommunications Rules, Part III, s. 23 (opens in a new tab)
Local time comes from the area code, not from where the person is today. Mobiles keep their number when they move. Calling hours here are a guide, not legal advice. Every state's calling hours, with sources
742 and 289, 365 and 905
742 went into service on October 16, 2021. 742, 289, 365 and 905 cover the same area, so new numbers can get any of them and neighbors can have different area codes. 742 holds 6% of the area's exchanges; 289 holds the most. Local calls take all 10 digits.
- 1993905 overlay
- 2001289 overlay
- 2013365 overlay
- 2021742 starts
Source: NANPA area code database
Calling a list of 742 numbers?
Paste it into the free phone number validator. It checks every number, finds each one's time zone and sorts the list by who you can call right now.
742 area code FAQ
What area code is 742?
742 is an Ontario area code for Brampton, Hamilton, St. Catharines-Thorold, Ajax-Pickering and 64 more places.
What time zone is the 742 area code in?
Eastern Time (EST, UTC-5; EDT, UTC-4 in summer).
Is 289 the same as 742?
Same area, different code. 742, 289, 365 and 905 cover the same area (an overlay), so new numbers can get any of them and local calls take all 10 digits.
What are the calling hours for 742 numbers?
Mon to Fri, 9 AM to 9:30 PM · Sat to Sun, 10 AM to 6 PM, local time, under Canada's CRTC rules.
When did the 742 area code start?
On October 16, 2021.
Calling 742 numbers? Reach more of them.
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