| 201 | RIIS | RIISE SHIPPING INC | | | SCAC4 |
| 202 | RIIU | RINA SERVICES S.P.A. | | I | BIC |
| 203 | RIIW | ROMEO INVESTMENTS INC | | | SCAC4 |
| 204 | RIIX | Reilly Industries, Inc. | added 4/2000; 7/2000-7/2005; eliminated 4/2008 | | NAKINA |
| 205 | RIIX | Reilly Industries, Inc. | added 4/2000; 7/2000 | | NRHS |
| 206 | RIIX | REILLY INDUSTRIES, INC. | | | PWRC |
| 207 | RIIX | Reilly Industries | | | RSRV |
| 208 | RIJJ | ROBUSTELLI, JOHN J | | | SCAC3 |
| 209 | RIJL | RICHARDSON, JACK L | | | SCAC3 |
| 210 | RIJN | RICHER, JOHN TRUCKING | | | SCAC3 |
| 211 | RIJO | RIDDLES DELIVERY SERVICE | | | SCAC3 |
| 212 | RIJO | RIVAS MARQUEZ, JOSE SAUL | | | SCAC4 |
| 213 | RIJU | RIJBATAINER | | | SCAC3 |
| 214 | RIJW | RIGGINS, J W | | | SCAC3 |
| 215 | RIK | Eurojet, Compagnie | Callsign: Rikas, | B | AVCODES |
| 216 | RIKA | RIKA TRUCKING | | | SCAC3 |
| 217 | RIKC | RICKS CONTAINER SERVICES | | | SCAC3 |
| 218 | RIKE | RICKETTS TRUCKING | | | SCAC3 |
| 219 | RIKG | RICHARDS, KENNETH G | | | SCAC3 |
| 220 | RIKL | RIEMAR-KLINGEL TRUCKING CO | | | SCAC3 |
| 221 | RIKO | RIGHTWAY EXPRESS CO | | | SCAC3 |
| 222 | RIKQ | RICKS TRUCKING | | | SCAC3 |
| 223 | RIKS | RIENKS, ARNOLD JERRY | | | SCAC3 |
| 224 | RIKS | RIKSHA GOLF INC | | | SCAC4 |
| 225 | RIKT | RICKETTS TRUCKING INC | | | SCAC3 |
| 226 | RIKW | RICHARDSON, KEITH | | | SCAC4 |
| 227 | RIL | Regional Air | | RIM | AVCODES |
| 228 | RIL | Regional Air | | | ICAO1 |
| 229 | RILA | REILLY, A V INTERNATIONAL LTD | | | SCAC3 |
| 230 | RILA | REILLY, A V INTERNATIONAL LTD | | | SCAC4 |
| 231 | RILC | R8IT LOGISTICS & | | | SCAC4 |
| 232 | RILD | RILEY, DALE A INC | | | SCAC3 |
| 233 | RILD | RYDER INTEGRATED LOGISTICS INC (RIL | | | SCAC4 |
| 234 | RILE | RILEY CARTAGE | | | SCAC3 |
| 235 | RILEY | Riley and Son (Electromec) Ltd. | | UK | VKM |
| 236 | RILF | RELLUM INC LLC | | | SCAC4 |
| 237 | RILG | REGIONAL INTEGRATED LOGISTICS INC | | | SCAC4 |
| 238 | RILI | RYDER INTEGRATED LOGISTICS INC (RIL | | | SCAC4 |
| 239 | RILL | RIZE INDUSTRIES LLC | | | SCAC4 |
| 240 | RILN | RICKERT & LAAN INC | | | SCAC3 |
| 241 | RILQ | RILL TANKSHIP INC. | | | SCAC3 |
| 242 | RILR | RYDER INTEGRATED LOGISTICS INC (RIL | | | SCAC4 |
| 243 | RILS | RICE LINES INC | | | SCAC3 |
| 244 | RILT | RILEY TRUCKING COMPANY, INCORPORATE | | | SCAC3 |
| 245 | RILU | RICKMERS-LINEIE GMBH & CIE K | | | SCAC4 |
| 246 | RILX | Garvey International, Inc., Garvey Grain Division | 7/2000-7/2005; eliminated 1/2008 | | NAKINA |
| 247 | RILX | Garvey International, Inc. | added 7/1996 | | NAKINA |
| 248 | RILX | Interail, Inc. | added 7/1980; 1/1994; eliminated 7/1996 | | NAKINA |
| 249 | RILX | Interail, Inc. | added 7/80; 1/94; eliminated 7/96 | | NRHS |
| 250 | RILX | Garvey International, Inc. | added 7/96 | | NRHS |
| 251 | RILX | Garvey International, Inc., Garvey Grain Division | Jul-00 | | NRHS |
| 252 | RILX | *INTERAIL, INC. | | | PWRC |
| 253 | RILX | +GARVEY INTERNATIONAL INCORPORATED, GARVEY GRAIN DIVISION | | | PWRC |
| 254 | RILX | Interail | | | RSRV |
| 255 | RILX | INTERAIL INC | | | SCAC4 |
| 256 | RIM | Rimrock Airlines, Inc. | Callsign: Rimrock, | USA | AVCODES |
| 257 | RIM | Rimrock Airlines | | | ICAO1 |
| 258 | RIM | Rheinisches Industriebahn Museum e.V | | DE | VKM |
| 259 | RIMA | RIMAR TRANSPORT | | | SCAC3 |
| 260 | RIMA | RIMAR TRANSPORT | | | SCAC4 |
| 261 | RIMC | RICHLOR MACHINERY CO INC | | | SCAC3 |
| 262 | RIMD | RAIL INTERMODAL TRUCKING LTD | | | SCAC3 |
| 263 | RIMD | RELIANCE INTERMODAL LLC | | | SCAC4 |
| 264 | RIME | RIME SALES CORP | | | SCAC4 |
| 265 | RIMG | RIFFEL MOVING SERVICE INC | | | SCAC3 |
| 266 | RIMG | RIMAR CHARTERING CORPORATION | | | SCAC4 |
| 267 | RIMH | RIM LOGISTICS LTD | | | SCAC4 |
| 268 | RIMI | RIO MARINE INC | | | SCAC3 |
| 269 | RIML | RIMORCHIATORI | | | SCAC4 |
| 270 | RIMN | RIECHMANN TRANSPORT INC | | | SCAC3 |
| 271 | RIMN | RODRIGUEZ MARRUFO, FRANCISCO | | | SCAC4 |
| 272 | RIMO | REPRESENTACI | | | SCAC4 |
| 273 | RIMQ | RIED MOTOR EXPRESS | | | SCAC3 |
| 274 | RIMR | RIEMERS MARINA | | | SCAC3 |
| 275 | RIMS | GEORGE RIMES TRUCKING CO | | | PWRC |
| 276 | RIMT | ROCK ISLAND MOTOR TRANSIT CO | | | PWRC |
| 277 | RIMT | ROLLA IMPLEMENT | | | SCAC4 |
| 278 | RIMX | Ready Mixed Concrete Co. | 1/1994-7/2005 (not listed) | | NAKINA |
| 279 | RIMX | Ready Mixed Concrete Co. | 1/94-7/2000 | | NRHS |
| 280 | RIMX | READY MIXED CONCRETE CO. | | | PWRC |
| 281 | RIMX | *READY MIXED CONCRETE COMPANY | | | PWRC |
| 282 | RIMX | +RAIL & MOTOR INTERNATIONAL LTD. | | | PWRC |
| 283 | RIMX | Ready Mixed Concrete | | | RSRV |
| 284 | RIMX | RAIL & MOTOR INTERNATIONAL LTD | | | SCAC4 |
| 285 | RIN | Airline Transport Incorporation | Callsign: Aerotitan, | MD | AVCODES |
| 286 | RIN | Little Rissington (RAF) | Callsign: Rissington, | GB | AVCODES |
| 287 | RINA | REAL INDUSTRIES | | | SCAC4 |
| 288 | RINB | RIFANBURG, C J TRUCKING | | | SCAC3 |
| 289 | RINB | RAKKASANS INC | | | SCAC4 |
| 290 | RINC | REITAND, CHARLES | | | SCAC3 |
| 291 | RINC | ROSTAM INC | | | SCAC4 |
| 292 | RINCJ | REMATINVEST SRL | | RO | VKM |
| 293 | RIND | RIEDON INC | | | SCAC4 |
| 294 | RINE | RIGGING INTERNATIONAL | | | SCAC4 |
| 295 | RINF | RING, FRANK R TRANSFER INC | | | SCAC3 |
| 296 | RINF | RING, FRANK R TRANSFER INC | | | SCAC4 |
| 297 | RING | RINGSBY TRUCK LINES INC | | | PWRC |
| 298 | RING | RUNNERS INCORPORATED | | | SCAC4 |
| 299 | RINH | RINEHARTS MEAT PROCESSING INC | | | SCAC3 |
| 300 | RINH | RINEHARTS MEAT PROCESSING INC | | | SCAC4 |
