What area code do you enter when sending a fax to Tonga?

There are two area codes for Tonga. Area code 676 serves Nuku‘alofa, Ha‘apai, Kolomotu‘a, ‘Eueiki and ‘Eua. Area code 679 covers Vava‘u. To send a fax to Tonga, enter 011 followed by 676 or 679 (e.g., 011 676-1234567).