What country is dialling code 0085?

The '00' is not part of the country code, it is a commonly used international access prefix. Country codes beginning with +85 are in east or southeast Asia, but you need one more digit.+850 = North Korea+852 = Hong Kong+853 = Macau+855 = Cambodia+856  wiki.answers.com

There is no country code +85, although several three-digit country codes begin with 85.  wiki.answers.com