| 8 characters | 12 characters | ALPHA-2 | ALPHA-3 | ||
| 776 | Tonga | TONGA | TONGA | TO | TON |
| 780 | Trinidad and Tobago | TRINIDAD | TRINIDAD TBG | TT | TTO |
| 788 | Tunisia | TUNISIA | TUNISIA | TN | TUN |
| 792 | Turkey | TURKEY | TURKEY | TR | TUR |
| 796 | Turks and Caicos Islands | TURKS IS | TURKS CA.ISL | TC | TCA |
| 800 | Uganda | UGANDA | UGANDA | UG | UGA |
| 804 | Ukrainian Soviet Socialist Republic | UKRAINE | UKRAINE SSR | UA | UKR |
| 810 | Union of Soviet Socialist Republics | USSR | USSR | SU | SUN |
| 784 | United Arab Emirates | U.AR.EMR | UNTD ARAB EM | AE | ARE |
| 826 | United Kingdom | UNTD.KGD | UNTD KINGDOM | GB | GBR |
| 120 | United Republic of Cameroon | U.RP.CAM | UNTD.RP.CAMR | CM | CMR |
| 834 | United Republic of Tanzania | U.RP.TNZ | UNTD.RP.TANZ | TZ | TZA |
| 840[1] | United States of America | U.S.AMER | UNID STATES | US | USA |
| 849 | United States Miscellaneous Pacific Islands | US.M.P.I | US.MIS.PAC.I | PU | PUS |
| 850 | United States Virgin Islands | U.S.V.IS | US.VIRGIN IS | VI | VIR |
| 854 | Upper Volta | UPPR VLT | UPPER VOLTA | HV | HVO |
| 858 | Uruguay | URUGUAY | URUGUAY | UY | URY |
| 862 | Venezuela | VENZUELA | VENEZUELA | VE | VEN |
| 866 | Viet-Nam, Democratic Republic of | VIET.N.D. | VIETNAM D RP | VD | VDR |
| 872 | Wake Island | WAKE ISL | WAKE ISLAND | WK | WAK |
| 876 | Wallis and Futuna Islands | WALLIS I | WALLIS FUT.I | WF | WLF |
| 882 | Western Samoa | W.SAMOA | WEST. SAMOA | WS | WSM |
| 886 | Yemen | YEMEN | YEMEN | YE | YEM |
| 720 | Yemen, Democratic | YEMEN D | YEMEN DEM. | YD | YMD |
| 890 | Yugoslavia | YUGOSLAV | YUGOSLAVIA | YU | YUG |
| 180 | Zaire | ZAIRE | ZAIRE | ZR | ZAR |
| 894 | Zambia | ZAMBIA | ZAMBIA | ZM | ZMB |
| 896 | Areas not elsewhere specified | AREA NES | AREAS N.E.S. | ||
| 898 | Not specified | NOT SPEC | NOT SPEC. |
- ↑ See the note at the end of the annex.
9
