| 1 | REF | Reguljair | IATA: R8, Callsign: Reguljair, Designator R8* recalled by IATA | S | AVCODES |
| 2 | REF | Reef Air Ltd. (Air Transport (Chatham Islands) Ltd) | Callsign: Reef Air, | NZ | AVCODES |
| 3 | REF | Reef Air | | | ICAO1 |
| 4 | REF | Rendsburger Eisenbahnfreunde e.V. | Rendsburg | D | privat-bahn.de |
| 5 | REFA | REFLEN S A DE C V | | | SCAC4 |
| 6 | REFB | REPUBLIC CORPORATION OF HOUSTON TEX | | | SCAC3 |
| 7 | REFC | REEDS FUEL COMPANY | | | SCAC3 |
| 8 | REFC | REFRIGERADOS RRR | | | SCAC4 |
| 9 | REFD | REFRIGERATED FOOD SYSTEMS INC | | | SCAC4 |
| 10 | REFE | REFRIGERATED FOOD EXPRESS, INC | | | SCAC3 |
| 11 | REFE | REFRIGERATED FOOD EXPRESS INC | | | SCAC4 |
| 12 | REFER | Rede Ferroviária Nacional, E.P. | | PT | VKM |
| 13 | REFF | RESERS FINE FOODS INC | | | SCAC4 |
| 14 | REFJ | READY, FRED J INC | | | SCAC3 |
| 15 | REFJ | RAATH LINES | | | SCAC4 |
| 16 | REFL | RESORT FREIGHT LINES | | | SCAC3 |
| 17 | REFO | REFRIGERATED DELIVERY SERVICE INC | | | SCAC3 |
| 18 | REFQ | REFINERS TRANSPORT SERVICE INC | | | SCAC3 |
| 19 | REFR | REFRIGERATED TRANSPORT, INC | | | SCAC3 |
| 20 | REFS | RODRIGUEZ EXPEDITED FREIGHT SYSTEMS | | | SCAC4 |
| 21 | REFT | REDOE MOLD LIMITED | | | SCAC4 |
| 22 | REFU | PETIT FORESTIER CONTAINER NEDERLAND BV | | NL | BIC |
| 23 | REFU | REFCON B.V. REFFER ENGINEERING | | | SCAC3 |
| 24 | REFU | REFTRADE BV | | | SCAC4 |
| 25 | REFV | RUSH EXPEDITING INC | | | SCAC4 |
| 26 | REFW | REDLINE EXPRESS | | | SCAC4 |
