Country Abbreviations and Acronyms
- 598Papua New Guinea
- 620Portugal
- 634Qatar
- 642Romania
- 643Russian Federation
- 646Rwanda
- 654Saint Helena
- 670Saint Vincent and The Grenadines
- 674San Marino
- 686Senegal
- 688Serbia
- 690Seychelles
- 694Sierra Leone
- 724Spain
- 728South Sudan
- 732Western Sahara
- 736Sudan
- 740Suriname
- 744Svalbard and Jan Mayen
- 748Swaziland
Last updated: — Total entries: 1,275