| 1 | RRF | UK Royal Positioning Flights (in military aircraft) | Callsign: Kitty, | GB | AVCODES |
| 2 | RRF | Royal Air Force | | | ICAO1 |
| 3 | RRF | Rotterdam Rail Feeding | Rotterdam Rail Feeding is a company providing shunting and hauling services to third parties. | NL | TRAFFIC |
| 4 | RRF | Rotterdam Rail Feeding | | NL | VKM |
| 5 | RRFA | REMORQUAGE R F A INC | | | SCAC4 |
| 6 | RRFB | RED RIVER FARMS | | | SCAC4 |
| 7 | RRFC | R & R FREIGHT SERVICE LLC | | | SCAC4 |
| 8 | RRFE | RANGER REFRIGERATER EXPRESS INC | | | SCAC3 |
| 9 | RRFE | RANGER REFRIGERATED EXPRESS INC | | | SCAC4 |
| 10 | RRFI | R & R FERTILIZER INC | | | SCAC3 |
| 11 | RRFI | R & R TRANSPORT | | | SCAC4 |
| 12 | RRFM | RIDDLE & RIDDLE FARMS, INC | | | SCAC3 |
| 13 | RRFN | R & R FREIGHT LINES LLC | | | SCAC4 |
| 14 | RRFP | R & R FARM TRANSPORT | | | SCAC4 |
| 15 | RRFQ | RICHMONDS REFRIGERATED TRUCKING CO | | | SCAC3 |
| 16 | RRFQ | R & R FARMS | | | SCAC4 |
| 17 | RRFS | ROAD RUNNERS FREIGHT SYSTEM INCORPO | | | SCAC3 |
| 18 | RRFT | RIPPEL, RICHARD FARMING & TRUCKING | | | SCAC4 |
| 19 | RRFW | R & R FREIGHTWAYS | | | SCAC3 |
| 20 | RRFZ | (CSXT) RETIRED 04-06-93 ATP | | | PWRC |
