Here is the current coverage list you can check your destination fax recipient number.

In the meantime, you can enter the FAX number you wish to reach and you'll be told if the number is covered.

FORMAT: Be sure to use the IDDD-compliant form of the telephone number (spaces are allowed), including the country code and the prefix - no international dialing codes please.
ie: Oxford, England - 44 1865 xxxxxx ; Washington, USA - 1 202 xxx xxxx