| Action | Code | Name | Label | Hierarchy | Part Of | Version | Valid From | Valid Until |
|---|---|---|---|---|---|---|---|---|
| UM130 | Kingman Reef | Kingman Reef | 0 Country | — | Active | 23/07/2020 | — | |
| UM157 | Midway Islands | Midway Islands | 0 Country | — | Active | 23/07/2020 | — | |
| UM167 | Navassa Island | Navassa Island | 0 Country | — | Active | 23/07/2020 | — | |
| UM184 | Palmyra Atoll | Palmyra Atoll | 0 Country | — | Active | 23/07/2020 | — | |
| UM21 | Baker Island | Baker Island | 0 Country | — | Active | 23/07/2020 | — | |
| UM260 | Wake Island | Wake Island | 0 Country | — | Active | 23/07/2020 | — | |
| US | United States | United States | 0 Country | — | Active | 23/07/2020 | — | |
| UY | Uruguay | Uruguay | 0 Country | — | Active | 23/07/2020 | — | |
| UZ | Uzbekistan | Uzbekistan | 0 Country | — | Active | 23/07/2020 | — | |
| VA | Vatican City | Vatican City | 0 Country | — | Active | 23/07/2020 | — |