Registry
| Prefix | Stands for | Agency / Government | Example |
|---|---|---|---|
| CSR | Catulla Spaceship Registry | Catulla (2420) | CSR Rafaela |
| IKS | Imperial Klingon Ship | tlhIngan wo' (930-present) | IKS Hish |
| IRW | Imperial Romulan Warbird | Rihannsu (1950-present) | IRW Tu'koh |
| USS | United Starship | Starfleet (2161-present) | USS Phoenix |