This is me, 53 countries:

Armenia
Australia
Austria
Azerbaijan
Belgium
Canada
China
Croatia
Czech Republic
Denmark
Estonia
Fiji
Finland
France
Georgia
Germany
Greece
Guam
Hong Kong
Hungary
Iceland
Indonesia
Israel
Italy
Japan
Latvia
Lebanon
Luxembourg
Macau
Malaysia
Morocco
Nauru
Netherlands
New Caledonia
New Zealand
Norway
Philippines
Portugal
Qatar
Russia
Singapore
Slovakia
Slovenia
Solomon Islands
South Africa
South Korea
Spain
Sweden
Switzerland
Thailand
Turkey
United Kingdom
United States