| 5201 | RKNC | ROCKTRANS INC | | | SCAC4 |
| 5202 | RKND | ROCKLAND MOVING & STORAGE | | | SCAC3 |
| 5203 | RKNE | RANKIN ENTERPRISES | | | SCAC3 |
| 5204 | RKNE | ROADLINK TRANSPORTATION SOLUTIONS ( | | | SCAC4 |
| 5205 | RKNG | R L TRUCKING INC | | | SCAC3 |
| 5206 | RKNI | RKN TRUCKING INC | | | SCAC4 |
| 5207 | RKNM | ROCK & MATERIALS INC | | | SCAC3 |
| 5208 | RKNQ | RANKINS SPECIAL DELIVERY | | | SCAC3 |
| 5209 | RKNT | ROECKNER TRUCKING INC | | | SCAC3 |
| 5210 | RKNU | ROKONORD LTD | | RUS | BIC |
| 5211 | RKNY | RAY, KENNY TRUCKING INC | | | SCAC3 |
| 5212 | RKO | RKO GENERAL | | | PWRC |
| 5213 | RKOL | RUN KOOL | | | SCAC4 |
| 5214 | RKOP | RIKO TRANSPORTATION INC | | | SCAC3 |
| 5215 | RKOT | RAN-KO TRUCKING INC | | | SCAC3 |
| 5216 | RKP | Aeroclip | Callsign: Aeroclip, | KZ | AVCODES |
| 5217 | RKPD | RAYMARK PETROLEUM DELIVERY | | | SCAC3 |
| 5218 | RKPD | ROCKY PRODUCE INC | | | SCAC4 |
| 5219 | RKPF | RICKS PERFORMANCE INC | | | SCAC4 |
| 5220 | RKR | Rockair, Société | Callsign: Rockair, | RM | AVCODES |
| 5221 | RKRB | ROCKING ROBIN TRUCK LINES | | | SCAC3 |
| 5222 | RKRC | ROCKINR COMPANY | | | SCAC3 |
| 5223 | RKRE | ROCK RIVER EXPRESS INC | | | SCAC4 |
| 5224 | RKRM | ROCK ROSE MARITIME S A | | | SCAC4 |
| 5225 | RKRO | ROCK-N-ROAD CONSTRUCTION | | | SCAC3 |
| 5226 | RKRQ | ROCK RIVER CARTAGE INC | | | SCAC3 |
| 5227 | RKRS | R K R SERVICE COMPANIES INC | | | SCAC3 |
| 5228 | RKRT | RICKER TRUCKING COMPANY LLC | | | SCAC4 |
| 5229 | RKRV | ROCK RIVER TRANSIT | | | SCAC3 |
| 5230 | RKRV | ROCK RIVER TRANSIT INC | | | SCAC4 |
| 5231 | RKS | ACP Jet Charters, Inc. d/b/a Phenix Jet | Callsign: Rockstar, | USA | AVCODES |
| 5232 | RKSC | ROCKFORD SPECIALIZED CARRIERS | | | SCAC3 |
| 5233 | RKSI | ROKAITIS INDUSTRIES INC | | | SCAC3 |
| 5234 | RKSI | RKS TRUCKING LLC | | | SCAC4 |
| 5235 | RKSM | RICKS MOVING AND STORAGE INC | | | SCAC3 |
| 5236 | RKSN | RICK & SONS TRUCKING | | | SCAC3 |
| 5237 | RKSP | ROCK SPRING TRANSPORT | | | SCAC3 |
| 5238 | RKSP | ROCK ISLAND EXPRESS | | | SCAC4 |
| 5239 | RKSQ | ROCK SOLID CONCRETE PRODUCTS INC | | | SCAC4 |
| 5240 | RKSR | ROOKS TRANSPORT INC | | | SCAC4 |
| 5241 | RKSU | {LLC "RUSKITSOYUZ LK"};ZIPCODE=630102 | | RUS | BIC |
| 5242 | RKSV | ROOT TRUCK SERVICES LLC | | | SCAC4 |
| 5243 | RKSW | R K STORAGE & WAREHOUSING INC | | | SCAC3 |
| 5244 | RKT | Rotormotion | Callsign: Rotormotion, ICAO Callsign changed to Rocket | GB | AVCODES |
| 5245 | RKT | Rotormotion | Callsign: Rocket, ICAO Callsign changed from Rotormotion | GB | AVCODES |
| 5246 | RKT | Rayani Air Sdn. Bhd. | IATA: RN, Callsign: Blue Green, IATA Prefix: 639, Founded on 19 January 2015. Commenced operations on 20 December 2015. Ceased operations on 13 June 2016. | T | AVCODES |
| 5247 | RKT | Rotormotion | | | ICAO1 |
| 5248 | RKTA | RICKS TRANSFER INC | | | SCAC3 |
| 5249 | RKTC | R & K TRUCKING INC | | | SCAC3 |
| 5250 | RKTE | R K TRANSPORT INC | | | SCAC4 |
| 5251 | RKTF | R K TRANSFER INC | | | SCAC3 |
| 5252 | RKTG | RICKS TRUCKING | | | SCAC3 |
| 5253 | RKTG | RICKYS TRUCKING | | | SCAC4 |
| 5254 | RKTH | RICKERT TRANSPORTATION | | | SCAC3 |
| 5255 | RKTH | RICKERT TRANSPORTATION | | | SCAC4 |
| 5256 | RKTI | RELIABLE KIRSCHBAUM TRUCKING CORP | | | SCAC3 |
| 5257 | RKTI | RADEVSKI TRANSPORT INC | | | SCAC4 |
| 5258 | RKTJ | ROCKING L TRUCKING | | | SCAC4 |
| 5259 | RKTM | ROCK TRANSPORT INC | | | SCAC3 |
| 5260 | RKTN | ROCKYS TRUCKING | | | SCAC3 |
| 5261 | RKTN | RAIKO TRANSPORT INC | | | SCAC4 |
| 5262 | RKTO | R K TRANSPORT OF ALEXANDRIA INC | | | SCAC3 |
| 5263 | RKTO | RK TRANSPORT OF ALEXANDRIA INC | | | SCAC4 |
| 5264 | RKTP | RAC-KUHN TRANSPORT INC | | | SCAC3 |
| 5265 | RKTQ | R & K TRUCKING INC | | | SCAC3 |
| 5266 | RKTR | R & K TRUCKING | | | SCAC3 |
| 5267 | RKTS | RICKS TRANSPORT INC | | | SCAC3 |
| 5268 | RKTT | ROCKING T TRANSPORTATION | | | SCAC3 |
| 5269 | RKTV | ROCKING K TRUCKING LLC | | | SCAC4 |
| 5270 | RKTW | R & K TOWING INC | | | SCAC3 |
| 5271 | RKTZ | TRANSAMERICA LEASING INC [(REAZ) MISSOURI PACIFIC RAILROAD] | | | PWRC |
| 5272 | RKTZ | TAL International | | | RSRV |
| 5273 | RKTZ | TRANSAMERICA LEASING INC | | | SCAC4 |
| 5274 | RKUK | R & K TRUCKING INC | | | SCAC3 |
| 5275 | RKVC | RUSSELLS TRUCK & TRAVEL CENTER | | | SCAC4 |
| 5276 | RKVT | ROCK VALLEY TRUCKING COMPANY INC | | | SCAC3 |
| 5277 | RKW | Rockwell Collins Avionics | Callsign: Rockwell, | USA | AVCODES |
| 5278 | RKW | Rockwell Collins Avionics | | | ICAO1 |
| 5279 | RKWC | RKW EXPRESS CORP | | | SCAC4 |
| 5280 | RKWE | ROCKWELL TRANSPORTATION SERVICES LL | | | SCAC4 |
| 5281 | RKWG | ROCKWELL TRUCKING INC | | | SCAC4 |
| 5282 | RKWI | ROCKWELL INTERMODAL INC | | | SCAC4 |
| 5283 | RKWK | RANTZ, K W TRUCKING | | | SCAC4 |
| 5284 | RKWL | ROCKWELLS MOVING & STORAGE | | | SCAC3 |
| 5285 | RKWM | ROCK WOOL MANUFACTURING CO | | | SCAC3 |
| 5286 | RKWO | ROCKWOOD TRANSPORTATION CORP | | | SCAC3 |
| 5287 | RKWQ | ROCKAWAY TRUCKING INC | | | SCAC3 |
| 5288 | RKWT | ROCKWELL TRUCKING CO | | | SCAC3 |
| 5289 | RKXA | RK TRANSPORTATION | | | SCAC4 |
| 5290 | RKXE | RUGA TRUCKING EXPRESS DEL NORTE SA | | | SCAC4 |
| 5291 | RKXI | RICK TRANS INC | | | SCAC4 |
| 5292 | RKXN | RK TRANSPORTATION | | | SCAC4 |
| 5293 | RKXP | ROADKING XPRESS | | | SCAC4 |
| 5294 | RKYD | ROCKY TOP DELIVERY SERVICE INC | | | SCAC4 |
| 5295 | RKYF | ROCKY FORD MOVING & STORAGE CO | | | SCAC3 |
| 5296 | RKYI | ROCKY INTERNATIONAL LLC | | | SCAC4 |
| 5297 | RKYK | ROCKY CREEK TRUCKING INC | | | SCAC4 |
| 5298 | RKYM | ROCKY MOUNTAIN TRANSPORTATION | | | SCAC3 |
| 5299 | RKYM | ROCKY MOUNTAIN PHOENIX | | | SCAC4 |
| 5300 | RKYQ | ROCKYTOP EXPRESS | | | SCAC4 |
