| 1 | RES | Restauraciones Aeronauticas, S.A. de C.V. | Callsign: Restauraciones, | MEX | AVCODES |
| 2 | RES | Hawaiian Air Tours Service | Callsign: Resort, | USA | AVCODES |
| 3 | RES | Australian Maritime Safety Authority (AMSA) | Callsign: Search, | AUS | AVCODES |
| 4 | RES | Australian Maritime Safety Authority | | | ICAO1 |
| 5 | RESA | RESERVE AGRI-BUSINESS INC | | | SCAC3 |
| 6 | RESA | RED EAGLE SHIPPING AGENCIES PRIVATE | | | SCAC4 |
| 7 | RESB | REASONER, BILL | | | SCAC3 |
| 8 | RESB | RCM EXPEDITED SERVICES | | | SCAC4 |
| 9 | RESC | RESIDENTIAL DELIVERY CARRIERS INC | | | SCAC3 |
| 10 | RESD | ROBERTS, ELI FUELS LLC | | | SCAC4 |
| 11 | RESE | REES ENTERPRISES INC | | | SCAC3 |
| 12 | RESE | REES LOGISTICS CO LLC | | | SCAC4 |
| 13 | RESF | RESEARCH TRANSPORT COMPANY INC | | | SCAC3 |
| 14 | RESF | RES EXHIBITS SERVICES LLC | | | SCAC4 |
| 15 | RESG | RELIABLE SHIPPING AND TRADING | | | SCAC3 |
| 16 | RESH | REISCH TRUCKING & TRANSPORTATION | | | SCAC3 |
| 17 | RESH | RESI | | | SCAC4 |
| 18 | RESI | ROLLINS ENVIRONMENTAL SERVICE | | | SCAC3 |
| 19 | RESI | RESINERA DE HIDALGO S DE RL | | | SCAC4 |
| 20 | RESI | Prescom Resita | City: Resita | RO | TRAFFIC |
| 21 | RESJ | REED, STEPHEN J INC | | | SCAC3 |
| 22 | RESL | RESLER, DEAN | | | SCAC3 |
| 23 | RESL | ROCKET EXPEDITED SERVICES LLC | | | SCAC4 |
| 24 | RESM | RESTMORE MOBILE HOMES | | | SCAC3 |
| 25 | RESN | RESOURCES TRUCKING INC | | | SCAC3 |
| 26 | RESN | RESOURCES TRUCKING INC | | | SCAC4 |
| 27 | RESO | RIVERSIDE STORAGE & CARTAGE COMPANY | | | SCAC3 |
| 28 | RESP | RED SEA EXPRESS | | | SCAC4 |
| 29 | RESQ | READING EXPRESS COMPANY | | | SCAC3 |
| 30 | RESR | RESOURCE RECOVERY CORP | | | SCAC3 |
| 31 | REST | REES TRUCKING CO | | | SCAC3 |
| 32 | RESU | RED EAGLE SHIPPING AGENCIES PVT LTD | | | SCAC4 |
| 33 | RESW | RENSLOW, ROBERT & DARLENE | | | SCAC3 |
| 34 | RESW | REIF ESTATE WINERY | | | SCAC4 |
| 35 | RESX | Rescar Inc. | added 1/1978; 1/1980; eliminated 5/1983; 1/1994-7/2005 (not listed) | | NAKINA |
| 36 | RESX | The Resinous Products & Chemical Co., Inc. | 1/1943-4/1947 | | NAKINA |
| 37 | RESX | Rescar Inc. | added 1/78; 1/80; eliminated 5/83; 1/94-7/2000 | | NRHS |
| 38 | RESX | *RESINOUS PRODUCTS & CHEMICAL CO., INC. | | | PWRC |
| 39 | RESX | +RESCAR, INC. | | | PWRC |
| 40 | RESX | Rescar | | | RSRV |
| 41 | RESX | RESCAR, INC. | | | SCAC4 |
| 42 | RESY | RELCO SYSTEMS INC | | | SCAC3 |
| 43 | RESZ | RESERVE MINING COMPANY | | | PWRC |
| 44 | RESZ | Reserve Mining Co. | | USA | TRAFFIC |
