Operators
- Brazil
- Brazilian Air Force - two resold to VARIG
- Cambodia
- Khmer National Air Force
- Republic of China (Taiwan)
- Republic of China Air Force
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- 34th "Black Bat" Squadron, 1962 to 1973
- 4 C-123K, retired in 1981
- El Salvador
- Air Force of El Salvador
- Laos
- Royal Lao Air Force
- Lao People's Liberation Army Air Force
- Philippines
- Philippine Air Force
- Saudi Arabia
- Royal Saudi Air Force
- South Korea
- Republic of Korea Air Force
- South Vietnam
- South Vietnamese Air Force
- Thailand
- Royal Thai Air Force
- United States
- US Air Force
- US Coast Guard
- Venezuela
- Venezuelan Air Force
Read more about this topic: Fairchild C-123 Provider