| 1 | SMT | Skyline Ltd. | Callsign: Skylimit, | WAN | AVCODES |
| 2 | SMT | Skyline | | | ICAO1 |
| 3 | SMT | S M T (EASTERN) LIMITED | | | SCAC4 |
| 4 | SMT | Sanghai Magnetic Train | | PRC | TRAFFIC |
| 5 | SMT | AB Sandvik Materials Technology | | SE | VKM |
| 6 | SMTA | SOUTHEASTERN MICHIGAN TRANSPORTATION AUTHORITY | | | PWRC |
| 7 | SMTA | SMITH TRANSPORT | | | SCAC4 |
| 8 | SMTB | STEEL & MACHINERY TRANSPORTATION IN | | | SCAC4 |
| 9 | SMTC | SMITH TRANSPORTATION CO | | | PWRC |
| 10 | SMTD | SMET TRUCKING LTD | | | SCAC4 |
| 11 | SMTE | SMT SPECIALIZED | | | SCAC4 |
| 12 | SMTF | SMITHTRANS INC | | | SCAC4 |
| 13 | SMTH | SMT SHIPMANAGEMENT & TRANSPORT LIMI | | | SCAC4 |
| 14 | SMTI | SMITH TRANSPORTATION | | | SCAC4 |
| 15 | SMTK | SMA TRUCKING INC | | | SCAC4 |
| 16 | SMTL | SOUTHWESTERN MOTOR TRANSPORT, INC | | | SCAC1 |
| 17 | SMTL | SOUTHWESTERN MOTOR TRANSPORT INC | | | SCAC4 |
| 18 | SMTM | SMITH TRUCKING INC | | | SCAC4 |
| 19 | SMTO | SIM-TRAN (ONTARIO) INC | | | SCAC4 |
| 20 | SMTP | S & M TRANSPORTATION INC | | | SCAC4 |
| 21 | SMTR | S&M TRUCK LINE, INC | | | SCAC1 |
| 22 | SMTR | S & M TRUCK LINE, INC | | | SCAC4 |
| 23 | SMTRA | SOMETRA SA | | RO | VKM |
| 24 | SMTS | SALOM TRANSPORTATION INC | | | SCAC4 |
| 25 | SMTU | SEMIMATEX CO.,LTD | | PRC | BIC |
| 26 | SMTU | TRANSPORT MARITIME DE MALGACHE | | | SCAC3 |
| 27 | SMTUC | Serviços Municipalizados de Transportes Urbanos de Coimbra | | P | TRAFFIC |
| 28 | SMTV | SMOKEY MOUNTAIN MOVING SERVICES INC | | | SCAC4 |
| 29 | SMTW | SCHMIDT, T W & SONS TRUCKING LLC | | | SCAC4 |
| 30 | SMTZ | TRANSAMERICA LEASING INC | | | SCAC4 |
