How do I dial a United States or Canada phone number?
Problem:
What digits do I need to dial to make a call to a PSTN user in the United States or Canada?
Solution:
To dial any PSTN phone number that is part of the NANP (North American Numbering Plan), you must dial:
1 + Area Code + Phone number
The NANP covers the United States, Canada, Bermuda and most Carribean countries. Despite the "North American" name, Mexico and the Central American countries are not part of the system.
Note: PSTN numbers must be dialed as if you were living in North America. If you reside in Australia and need to call Canada,United States, Bermuda or most Carribean countries, you will need to dial: 1 + Area Code + Phone number.