World Airport Codes the most accurate airport database on the Internet

Countries in Asia - brackets represent the number of countries in that region

Bangladesh (9)
Bhutan (1)
British Indian Ocean Territory (1)
Brunei (3)
Burma (42)
Cambodia (7)
China (163)
Hong Kong (2)
India (123)
Indonesia (101)
Japan (106)
Kazakhstan (23)
Korea (1)
Kyrgyzstan (3)
Laos (10)
Macau (1)
Malaysia (43)
Maldives (15)
Midway Islands (1)
Mongolia (5)
Myanmar (1)
Nepal (32)
North Korea (2)
Pakistan (43)
Philippines (51)
Singapore (4)
South Korea (26)
Sri Lanka (9)
Taiwan (20)
Tajikistan (5)
Thailand (41)
Turkmenistan (6)
Uzbekistan (12)
Vietnam (26)
Wake Island (1)