All countries in the Americas use codes that start with "5", with the exception of the countries of the North American Numbering Plan, such as Canada and the United States, which use country code 1, and Greenland and Aruba with country codes starting with the digit "2", which mostly is used by countries in Africa.

• Telephone numbering plan
• National conventions for writing telephone numbers
• List of country calling codes
• List of international call prefixes
• List of North American Numbering Plan area codes
• Area codes in the Caribbean
• Category:Telephone numbers by country