| 1 | OFF | Challenge International Airlines | Callsign: Challenge Air, | USA | AVCODES |
| 2 | OFF | Challenge International Airlines | | | ICAO1 |
| 3 | OFFC | OFFSHORE CRANE & SERVICE COMPANY, INC | | | SCAC3 |
| 4 | OFFD | OFF DOCK UNLIMITED | | | SCAC3 |
| 5 | OFFH | OFFENHEISER INC | | | SCAC4 |
| 6 | OFFI | OPPORTUNITY FAST FREIGHT INC | | | SCAC3 |
| 7 | OFFK | ONE FIVE FIVE SIX EIGHT FIVE FOUR ( | | | SCAC4 |
| 8 | OFFL | OFFICIAL FAST FREIGHT LLC | | | SCAC4 |
| 9 | OFFM | OFFICE MOVERS INC | | | SCAC3 |
| 10 | OFFM | OFFICE MOVERS INC | | | SCAC4 |
| 11 | OFFR | OHIO FAST FREIGHT, INC | | | SCAC3 |
| 12 | OFFR | ONE FOUR FIVE FIVE FOUR NINE TWO (1 | | | SCAC4 |
| 13 | OFFT | OFFMOR TRUCKING INC | | | SCAC4 |
| 14 | OFFU | CARU CONTAINERS BV | | NL | BIC |
| 15 | OFFU | CONTAINER COMPANY AMSTERDAM BV | | | SCAC4 |
| 16 | OFFV | ONE FIVE FIVE THREE SIX SIX NINE (1 | | | SCAC4 |
| 17 | OFFY | OLD FRONTIER FAMILY INC | | | SCAC4 |
