| 1 | OBT | Virgin Orbit | Callsign: Cosmic Girl, | USA | AVCODES |
| 2 | OBTB | O B TRUCKING INC | | | SCAC4 |
| 3 | OBTC | O B TRANSPORT INC | | | SCAC4 |
| 4 | OBTD | O BROTHERS TRANSPORTATION INC | | | SCAC4 |
| 5 | OBTG | OBANION TRUCKING | | | SCAC3 |
| 6 | OBTG | OCEAN BLUE TRUCKING LTD | | | SCAC4 |
| 7 | OBTI | OBRIEN TRUCKING | | | SCAC3 |
| 8 | OBTI | OUTBACK TRANSPORT INC | | | SCAC4 |
| 9 | OBTK | OSBORNE TRUCKING LIMITED | | | SCAC4 |
| 10 | OBTL | ORSCHELN BROS TRUCK LINE | | | PWRC |
| 11 | OBTM | OBRIEN, TOM TRUCKING INC | | | SCAC4 |
| 12 | OBTN | OLSEN BROS TRANSPORTATION INC | | | SCAC4 |
| 13 | OBTO | OSBORNE TRUCKING | | | SCAC3 |
| 14 | OBTP | ORILLIA-BARRIE TRANSPORT INC | | | SCAC3 |
| 15 | OBTQ | OROPEZA BROTHERS TRUCKING INC | | | SCAC4 |
| 16 | OBTR | OBRIAN TRUCKING | | | SCAC3 |
| 17 | OBTR | O'BRIEN TRANSPORTATION INCORPORATIO | | | SCAC4 |
| 18 | OBTS | ONEILL BROS TRANSFER & STORAGE CO | | | SCAC3 |
| 19 | OBTU | JIANGSU O-BEST NEW MATERIALS CO LTD | | PRC | BIC |
