88 countries/territories covered by the OTA System (in alphabetical order)
|
A Albania |
Liechtenstein |
| Argentina | Lithuania |
| Australia | Luxembourg |
| Austria |
M Malaysia |
|
B Bahrain |
Maldives |
| Bangladesh | Malta |
| Belarus | Mauritius |
| Belgium | Mexico |
| Bosnia and Herzegovina | Mongolia |
| Brazil | Montenegro |
| Brunei | Morocco |
| Bulgaria | Myanmar |
|
C Cambodia |
N Nepal |
| Canada | Netherlands |
| Chile | New Zealand |
| Croatia | North Macedonia |
| Cyprus | Norway |
| Czech Republic |
O Oman |
|
D Denmark |
P Pakistan |
|
E Egypt |
Peru |
| Estonia | Philippines |
|
F Fiji |
Poland |
| Finland | Portugal |
| France |
Q Qatar |
|
G Germany |
R Romania |
| Gibraltar | Russia |
| Greece |
S Saudi Arabia |
| Guam | Serbia |
|
H Hungary |
Singapore |
|
I Iceland |
Slovak Republic |
| India | Slovenia Republic |
| Indonesia | South Africa |
| Iran | Spain |
| Ireland | Sri Lanka |
| Israel | Sweden |
| Italy | Switzerland |
|
J Japan |
Syria |
| Jordan |
T Thailand |
|
K Kazakhstan |
Tunisia |
| Kenya | Türkiye |
| Korea |
U United Arab Emirates |
|
L Laos |
United Kingdom |
| Latvia | United States of America |
| Lebanon |
V Vietnam |
| (Gibraltar - British Overseas Territory) | |
| (Guam - territory of USA) | |