Many people assume that every phone number starting with +1 is American. In fact, +1 is the country code for a shared system called the North American Numbering Plan, which includes the United States, Canada, and a number of Caribbean countries and territories. This guide explains Canada area codes and their Caribbean neighbors, and what to watch for when you dial them.
How the shared +1 plan works
All the places in the plan use the same ten-digit format: a three-digit area code followed by a seven-digit number. Because they share a country code, a call between them looks like a domestic one on the keypad. A Toronto number and a Texas number are dialed in the same way, with no special international steps.
Each area code, however, belongs to one specific country or territory. Two places in the plan never share the same area code. That is what makes it possible to tell a Canadian number from an American one by the first three digits alone, even though both begin with +1.
A quick tour of Canada area codes
Canada uses its own set of codes, many of which will be familiar from news and television. Large cities often have several codes layered on the same area, so one city can carry more than one.
- Toronto: 416, with 647 and 437 layered over it.
- Montreal: 514, together with 438.
- Vancouver: 604, together with 778 and 236.
- Ottawa: 613.
- Calgary: 403.
- Edmonton: 780.
- The northern territories: 867 covers Yukon, the Northwest Territories, and Nunavut.
This is only a sample. The country has dozens of codes, and many were added as overlays when the original ones ran low on numbers. In big cities such as Toronto, that means ten-digit dialing is the norm even for a call across the street, so always include the area code when you save a Canadian contact. When you travel between the two countries, a number saved in full international form, starting with +1, will work from both sides of the border.
Caribbean and Pacific codes under +1
A surprising number of island nations dial the same way. Some well-known examples include Jamaica with 876, the Bahamas with 242, Barbados with 246, Bermuda with 441, the Cayman Islands with 345, Trinidad and Tobago with 868, and the Dominican Republic with 809, 829, and 849. The US territory of Puerto Rico uses 787 and 939, and the US Virgin Islands use 340. Some Pacific territories also belong to the plan, including Guam with 671.
Not every Caribbean destination is part of it. Cuba and Haiti, for instance, have their own separate country codes, and Mexico does not use +1 either.
Costs when dialing Canada area codes and Caribbean numbers
Mobile plans in the United States often bundle calling to Canada, since it is a close neighbor, while the Caribbean is more varied. Here is the catch. A call may be dialed like a local one but still be billed as international. Calling a Canadian number from a US plan is included in many mobile plans, but that is not guaranteed. Calls to most Caribbean nations can carry international rates, even though no extra digits are needed.
- Check your plan’s terms for calls to Canada and the Caribbean before dialing.
- Use an area code lookup if a code is unfamiliar, so you know where you are calling.
- Consider an internet calling app for long conversations with people overseas.
Watch out for callback scams
Because Canada and Caribbean codes look like ordinary numbers, scammers take advantage of them. A common trick is the one-ring call: your phone rings once and stops, hoping you will call back out of curiosity. The number you dial may belong to a high-cost line. Other callers claim you have won a prize and ask for a fee.
Stay safe with a few simple habits. Do not return missed calls from codes you do not recognize. Look up the area code first. Ignore messages demanding payment or personal information. Authorities in the US and Canada have warned about these schemes, and your carrier can block calls from certain regions if you ask.
Frequently Asked Questions
Is Canada part of the same system as the United States?
Yes. Canada shares the +1 country code and the ten-digit format, but it has its own separate set of area codes.
Are Caribbean calls free with a US plan?
Not necessarily. They are dialed like domestic calls but may be charged at international rates. Check your plan first.
Is Mexico part of +1?
No. Mexico uses its own country code, which is 52.
Understanding which countries share +1 helps you dial with confidence and avoid surprise charges. To identify a code you do not recognize, try the lookup at areascode.us.
