| 1 | STN | St. Athan MU | Callsign: Saint Athan, | GB | AVCODES |
| 2 | STN | RAF St Athan | | | ICAO1 |
| 3 | STNC | SELECTRANS INC | | | SCAC4 |
| 4 | STND | SINOTRANS LIMITED | | | SCAC4 |
| 5 | STNF | STODDARD TRANSFER | | | SCAC4 |
| 6 | STNG | STINGER TRANSPORT LLC | | | SCAC4 |
| 7 | STNL | STENA LINE B V | | | SCAC4 |
| 8 | STNN | STONE TRUCKING COMPANY | | | SCAC4 |
| 9 | STNP | STONE TRANSPORTATION COMPANY | | | SCAC4 |
| 10 | STNQ | SIMRAN TRANSPORT INC | | | SCAC4 |
| 11 | STNS | STONES EXPRESS INC | | | PWRC |
| 12 | STNS | SHARE TRANSPORTATION | | | SCAC4 |
| 13 | STNU | SAMATAINERS | | F | BIC |
| 14 | STNV | SET ENVIRONMENTAL INC | | | SCAC4 |
| 15 | STNX | Stauffer Chemical Co., Niagara Division | 4/1947-1/1952 | | NAKINA |
| 16 | STNX | Stauffer Chemical Co. | 7/1954; eliminated 7/1956 | | NAKINA |
| 17 | STNX | Stauffer Chemical Co., Niagara Division | Jan-52 | | NRHS |
| 18 | STNX | Stauffer Chemical Co. | eliminated 7/56 | | NRHS |
| 19 | STNX | *STAUFFER CHEMICAL CO. | | | PWRC |
| 20 | STNX | *STEAMTOWN NATIONAL PARK | | | PWRC |
| 21 | STNY | STONY'S TRUCKING CO | | | SCAC1 |
| 22 | STNY | SOLAR TRANSPORTATION INC | | | SCAC4 |
