| 1 | LRT | Airlines of South Australia | IATA: RT, Name changed from Lincoln Airlines Pty Ltd. | AUS | AVCODES |
| 2 | LRT | Lincoln Airlines Pty Ltd. | IATA: RT, Name changed to Airlines of South Australia | AUS | AVCODES |
| 3 | LRT | Liberty Jet Management | Callsign: Liberty Jet, | USA | AVCODES |
| 4 | LRT | Lincoln Airlines | | | ICAO1 |
| 5 | LRTA | L & R TRUCKING INC | | | SCAC3 |
| 6 | LRTA | LOST RIVER TRUCKING | | | SCAC4 |
| 7 | LRTAM | Light Rail Transit Authority | Real: LRTA, City: Manila | RP | TRAFFIC |
| 8 | LRTB | LARRYS TRUCKING | | | SCAC3 |
| 9 | LRTC | LAKES REGION TRANSIT CO INC | | | SCAC3 |
| 10 | LRTD | LARAMIE TIRE DISTRIBUTORS INC | | | SCAC3 |
| 11 | LRTD | LONG RIDER TRAVEL CO LTD | | | SCAC4 |
| 12 | LRTE | L R TRUCKING | | | SCAC3 |
| 13 | LRTF | LITTLE RED TRUCKING | | | SCAC3 |
| 14 | LRTF | LITTLE RED TRUCKING LLC | | | SCAC4 |
| 15 | LRTG | L R TRUCKING INC | | | SCAC3 |
| 16 | LRTH | LITTLE ROCK TOURS INC | | | SCAC4 |
| 17 | LRTI | LARSEN, TIMOTHY | | | SCAC3 |
| 18 | LRTI | LUCAS REFRIGERATED TRANSPORT INC | | | SCAC4 |
| 19 | LRTJ | L R TRANSPORTATION COMPANY INC | | | SCAC3 |
| 20 | LRTL | LUCIA SPECIALIZED HAULING INC | | | SCAC3 |
| 21 | LRTL | LUCIA SPECIALIZED HAULING INC | | | SCAC4 |
| 22 | LRTM | LORANG, JOSEPH J | | | SCAC3 |
| 23 | LRTM | LINEAR TRANSFER AUTOMATION INC | | | SCAC4 |
| 24 | LRTO | LADEIRA, RICHARD TRUCKING INC | | | SCAC3 |
| 25 | LRTP | LARRYS TRANSPORT | | | SCAC3 |
| 26 | LRTP | LA REYNA TRANSPORTES | | | SCAC4 |
| 27 | LRTQ | LARSEN TRANSFER & STORAGE CO | | | SCAC3 |
| 28 | LRTQ | LORI TRUCKING CORP | | | SCAC4 |
| 29 | LRTS | LARSON TRANSFER & STORAGE CO INC | | | SCAC3 |
| 30 | LRTT | L & R TRANSPORT | | | SCAC3 |
| 31 | LRTU | LAUDE LLC | | RUS | BIC |
| 32 | LRTV | LARRYS TRUCKING | | | SCAC3 |
| 33 | LRTV | L & R TRANSPORTATION INC | | | SCAC4 |
| 34 | LRTW | LITTLE RIVER TRANSPORT INC | | | SCAC4 |
| 35 | LRTY | L & R TRANSPORTATION | | | SCAC3 |
