Canada_s toll-free numbers are sometimes called the Canada 800 number. These toll-free dial codes are overseen by the North American Numbering Plan . The NANP is a group of countries in North America, including Canada. Technically the first 3 digits of a North American phone number is called the NPA code or more commonly called the Area Code. The next 3 digits of the number are technically called the NXX Exchange or Prefix. However, more often than not toll free service providers ...