Start by writing the international dialing access code of Japan, which is 010. Enclose this number in parentheses. Leave a space before writing the next number.
Write the country code. The country code for the United States is 1. Leave a space before writing the next number.
Write your national area code, leave a space and write the remaining digits of your phone number. Your phone number should look similar to this example: (010) +1 987 6543219.
