回答:
While Tom Clancy's Rainbow Six Siege is available in as many countries as possible around the world, there are still be some geographic restrictions as detailed below:

Data centers available for Tom Clancy's Rainbow Six Siege:
The following countries use the above data centres:
If you are playing the game in any of the countries not listed above, it is possible that your online experience may be limited. We do apologise for the inconvenience.
Data centers available for Tom Clancy's Rainbow Six Siege:
- NCSA: US East, US West, US Central, US South Central, Brazil South
- EMEA: EU West, EU North
- APAC: Asia East, Asia SouthEast, Australia East
- EMEA: EU West, EU North
- APAC: Asia East, Asia SouthEast, Australia East
The following countries use the above data centres:
Africa | ||||
Algeria | Burundi | Egypt | ||
Equatorial Guinea | Ethiopia | Liberia | ||
Libya | Morocco | Tunisia | ||
Asia | ||||
Azerbaijan | Bahrain | Bhutan | ||
Brunei Darussalam | Cambodia | Indonesia | ||
Israel | Japan (PC only) | Jordan | ||
Kazakhstan | Kuwait | Lao PDR | ||
Malaysia | Maldives | Mongolia | ||
Myanmar | Nepal | Philippines | ||
Qatar | Russian Federation | Saudi Arabia | ||
Singapore | South Korea | Sri Lanka | ||
Thailand | Timor-Leste | Turkey | ||
Uzbekistan | Viet Nam | |||
Europe | ||||
Albania | Andorra | Armenia | ||
Austria | Belarus | Belgium | ||
Bosnia and Herzegovina | Bulgaria | Croatia | ||
Cyprus | Czech Republic | Denmark | ||
Estonia | Finland | France | ||
Georgia | Germany | Greece | ||
Hungary | Iceland | Italy | ||
Latvia | Lithuania | Luxembourg | ||
Malta | Monaco | Montenegro | ||
Netherlands | Norway | Poland | ||
Portugal | Moldova | Romania | ||
Russian Federation | San Marino | Serbia | ||
Slovakia | Slovenia | Spain | ||
Sweden | Switzerland | Ukraine | ||
United Kingdom | Northern Ireland | |||
South America | ||||
Argentina | Bolivia | Brazil | ||
Chile | Colombia | Ecuador | ||
Guyana | Paraguay | Peru | ||
Uruguay | Venezuela | |||
North America | ||||
Antigua and Barbuda | Bahamas | Barbados | ||
Belize | Canada | Costa Rica | ||
Dominican Republic | Dominique | El Salvador | ||
Grenada | Guatemala | Haiti | ||
Honduras | Jamaica | Mexico | ||
Nicaragua | Panama | St. Kitts and Nevis | ||
St. Lucia | St. Vincent and the Grenadines | Trinidad and Tobago | ||
United States of America | ||||
Oceania | ||||
Australia | Fiji | New Zealand | ||
Palau | Papua New Guinea | Samoa | ||
Tonga |
If you are playing the game in any of the countries not listed above, it is possible that your online experience may be limited. We do apologise for the inconvenience.