How do I make calls on my US phone number?

Dial 1 plus the area code and the number to place calls to the U.S.
You will be billed at international rates for local, off-base Japanese numbers. We recommend that you use a local phone to make off-base local Japanese calls.
You will not incur long-distance charges if you call to the U.S. These are billed as part of your service plan.
For international calls, dial 011 prefix + country code and number. International calling rates will apply.