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How to write phone numbers

Question:

What is the correct format for writing telephone numbers in Canada?

Answer:

If you're just jotting down your aunt's phone number, you're probably not even thinking about whether or not the format you're using is correct. But when it comes time to include a telephone number in an official document, that's an entirely different matter.

The standard format for telephone numbers in Canada was (613) 555-0000. Since the introduction of 10-digit dialing, it is no longer appropriate to use parentheses around the area code. In English and French, the area code should be followed by a hyphen as follows: 613-555-0000.

Not surprisingly, for toll-free and long-distance numbers, we recommend that you use the following format: 1-800-555-0000 and 1-613-555-0000.