The process for dialing a U.S. fax number from another country requires a person to enter the country code, followed by the area code and fax number. Some fax services also require an exit code for sending international faxes.
To send a fax to the United States, a person must dial the U.S. country code of "1" plus the area code and phone number for the fax machine. Some services use the international access number of "011" for the United States. The country code that a fax company uses depends on its operating system. Some services also require the exit code number of the country from where the fax is sent.