| -C- | | -D- |
| Cambodia | China - Taiwan | Dahomey |
| Cameroon | Cilicia | Danzig |
| Canada | Cocos (Keeling) Islands | Denmark |
| Canada - Newfoundland | Colombia | Dominica |
| Cape Verde | Comoro Islands | Dominican Republic |
| Caribbean Netherlands | Congo Peoples Republic | Dubai |
| Cayes of Belize | Costa Rica | -E- |
| Cayman Islands | Croatia | Ecuador |
| Central African Republic | Cuba | Egypt |
| Ceylon | Curaçao | Equatorial Guinea |
| Chile | Cyprus | Eritrea |
| China | | Estonia |
| China - East | | Ethiopia |
| China - People's Republic | | |
| China - Port Arthur | | |
