| 1 | TIR | Antair, S.A. de C.V. | Callsign: Antair, | MEX | AVCODES |
| 2 | TIR | Antair | | | ICAO1 |
| 3 | TIRA | TST AIR | | | SCAC4 |
| 4 | TIRAST | TiraspolkyTrolleybus | | MD | TRAFFIC |
| 5 | TIRC | T M | | | SCAC4 |
| 6 | TIRD | TIRE LAND | | | SCAC4 |
| 7 | TIRI | TIR INTERMODAL INC | | | SCAC4 |
| 8 | TIRL | Tonawanda Island R.R., Inc. | added 7/1984; eliminated 10/1991; 1/1994-7/2005 | | NAKINA |
| 9 | TIRL | Tonawanda Island R.R., Inc. | added 7/84; eliminated 10/91; 1/94-7/2000 | | NRHS |
| 10 | TIRL | TONAWANDA ISLAND RAILROAD, INC. | | | PWRC |
| 11 | TIRL | Tonawanda Island Railroad | | | RSRV |
| 12 | TIRM | TRANSPORT INTERIM INC | | | SCAC4 |
| 13 | TIRQ | TRANSPORTE INTERNACIONAL ROQUIN S A | | | SCAC4 |
| 14 | TIRR | TRENTON IRON & METAL | | | SCAC4 |
| 15 | TIRS | TIR TRANSPORT | | | SCAC4 |
| 16 | TIRT | TRI-R TRUCKING INC | | | SCAC4 |
| 17 | TIRU | TIR TAXI DI CERE CLAUDIO EC SAS | | | SCAC4 |
| 18 | TIRZ | *TEMPLE INLAND ROCK | | | PWRC |
| 19 | TIRZ | *UNION PACIFIC RAILROAD COMPANY | | | PWRC |
| 20 | TIRZ | Union Pacific Railroad | | | RSRV |
| 21 | TIRZ | UNION PACIFIC RAILROAD COMPANY | | | SCAC4 |
