How to Call Toronto from the USA? Dialing Steps, Cost & Tips

1. Country Code: Canada has the same country code 1 as the United States. This means you do not need to dial an international prefix (like 011) when calling Toronto from the US. You can dial Toronto numbers just as you would for a long-distance call within the US.
2. Area Code: Toronto phone numbers begin with one of these main area codes: 416, 647, 437, and 942.
   • 416 area code: This is the original Toronto area code, introduced in 1947. It mainly covers the downtown and central areas of the city, including well-known neighborhoods like the Financial District, Old Toronto, and parts of North York.
   • 647 area code: The 647 area code was added in 2001 as an overlay to handle Toronto’s growing population and demand for new phone numbers. It covers the same geographic area as 416 and is commonly used for mobile phones and newer lines.
   • 437 area code: The 437 phone code was introduced as an additional overlay in 2013 to meet the demand for telephone numbers. Like 647, it serves the same geographic area and supplements the existing supply of phone numbers.
   • 942 area code: The 942 area code is the newest addition, introduced in 2025 to ensure there are enough phone numbers available for Toronto’s continued growth. It also covers the same region as the other three area codes, meaning all four codes are now active within the Greater Toronto Area.
3. Subscriber Number: Dialed after the area code, the subscriber number has seven digits. Together with the area code, it forms a 10-digit number.

To call a Toronto landline or mobile number from the United States, dial the Canadian country code (1), then the Toronto area code (416, 647, 437, or 942), followed by the seven-digit number. Similarly, to call a Toronto toll-free number, dial the country code (1), the toll-free prefix (800, 833, 844, 855, 866, 877, or 888), and then the seven-digit toll-free subscriber number.

To call a Toronto landline number from the US,

1. Enter the Canadian country code.
2. Dial the area code for Toronto.
3. Add the landline number.

To call a Toronto mobile number from the US,

1. Enter the Canadian country code.
2. Dial the area code for Toronto.
3. Add the seven-digit mobile number.

Toll-free numbers in Toronto begin with 800, 833, 844, 855, 866, 877, or 888 prefixes. When you call a Toronto toll-free number from the US,

1. Enter the Canadian country code.
2. Dial the toll-free prefix.
3. Dial the subscriber toll-free number.

The cost of dialing a Toronto number from the United States depends on your phone carrier, plan type, and whether you’re using a landline or mobile phone.

Since Canada and the US share the North American Numbering Plan, calling a Toronto number is similar to making a domestic long-distance call, not an international one.

Most major American carriers, including T-Mobile, Verizon, and AT&T, offer calls to Toronto (and the rest of Canada) at local or domestic rates.

Alternatively, you can use VoIP (Voice over Internet Protocol) services like Calilio, Google Voice, or Grasshopper. These platforms offer virtual phone numbers and affordable international calling options, making it easy and cost-effective to connect with contacts in Toronto.

The best time to call Toronto from the US depends on your location in the United States and the time difference between your city and Toronto.

Toronto operates in the Eastern Time Zone (ET), the same as cities like New York, Washington D.C., and Atlanta. This means if you’re in the Eastern Time Zone, there is no time difference, and you can call Toronto during normal business hours, between 9:00 AM and 6:00 PM (ET).

If you're calling from other parts of the US, you'll need to consider the time zone differences.

To successfully connect with individuals or businesses in Toronto from the US, you must follow the correct dialing format: Canadian country code (1), followed by a Toronto area code (such as 416, 647, 437, or 942), and then the seven-digit subscriber number.

However, it's important to keep time zone differences and potential call charges in mind, especially if you’re making frequent calls to Toronto. For regular or business communication, using a VoIP service such as Calilio can be a cost-effective alternative.