| 9001 | RTCZ | Rocor Freight Services | | | RSRV |
| 9002 | RTCZ | ROCOR FREIGHT SERVICES | | | SCAC4 |
| 9003 | RTD | L-3 Communications Flight International Aviation, LLC | Callsign: Riptide, | USA | AVCODES |
| 9004 | RTD | Regional Transportation District | City: Denver | USA | TRAFFIC |
| 9005 | RTDA | ROOT, DALE S TRUCKING | | | SCAC3 |
| 9006 | RTDA | RUEST, DANIEL | | | SCAC4 |
| 9007 | RTDC | RAY'S TRANSPORT INC | | | SCAC4 |
| 9008 | RTDE | RICARDOS | | | SCAC4 |
| 9009 | RTDF | RUBENS TRUCKING COMPANY INC | | | SCAC4 |
| 9010 | RTDI | RELIANCE TRADING CORP OF AMERICA | | | SCAC3 |
| 9011 | RTDI | RUGOSA TRADING INC | | | SCAC4 |
| 9012 | RTDK | REDLINE TRUCKING INC | | | SCAC4 |
| 9013 | RTDL | RAUSCH, TED L CO | | | SCAC3 |
| 9014 | RTDL | RAUSCH, TED L CO | | | SCAC4 |
| 9015 | RTDN | RTD | | | SCAC4 |
| 9016 | RTDO | RELIABLE TRUCKING INC | | | SCAC4 |
| 9017 | RTDQ | ROSAS TRUCKING LLC | | | SCAC4 |
| 9018 | RTDS | R & T DISPATCH INC | | | SCAC3 |
| 9019 | RTDS | RT DE JUAREZ S DE RL MI | | | SCAC4 |
| 9020 | RTDV | REBEL TRANSPORT (DIV OF 4186397 CAN | | | SCAC4 |
| 9021 | RTDW | ROMANO TRUCKING INC | | | SCAC4 |
| 9022 | RTDZ | REGIONAL TRANSPORTATION DISTRICT (DENVER) | | | PWRC |
| 9023 | RTDZ | Regional Transportation District (Denver) | | | RSRV |
| 9024 | RTE | Aero Transporte La Montana, C.A. | Callsign: La Montana, | YV | AVCODES |
| 9025 | RTE | Aeronorte | | | ICAO1 |
| 9026 | RTEC | RITE TRUCKING CO INC | | | SCAC3 |
| 9027 | RTEC | Regia Transport Electric Chișinău | City: Chișinău | MD | TRAFFIC |
| 9028 | RTEE | R T EIGHTY (80) EXPRESS INC | | | SCAC4 |
| 9029 | RTEH | ROGERS, TERRENCE H INC | | | SCAC3 |
| 9030 | RTEH | REEDEREI TSM EBERHARDT ARCTIC (GMBH | | | SCAC4 |
| 9031 | RTEI | R T E TRANSPORTATION INC | | | SCAC3 |
| 9032 | RTEI | ROSTECH TECHNOLOGIES | | | SCAC4 |
| 9033 | RTEJ | RITTERBECK, EARL J | | | SCAC3 |
| 9034 | RTEJO | Rodoviária do Tejo, S.A. | | P | TRAFFIC |
| 9035 | RTEK | RITTER, KEN | | | SCAC3 |
| 9036 | RTEK | REMATEK INC | | | SCAC4 |
| 9037 | RTEL | RAPID CONTAINER SERVICE INC | | | SCAC4 |
| 9038 | RTEN | ROUTE NETWORK | | | SCAC3 |
| 9039 | RTEO | ROTE OIL LTD | | | SCAC4 |
| 9040 | RTEP | ROGERS TRUCKS & EQUIPMENT INC | | | SCAC3 |
| 9041 | RTEP | REEF TRUCKING ENTERPRISES LTD | | | SCAC4 |
| 9042 | RTEQ | ROUTE 495 WAREHOUSE | | | SCAC3 |
| 9043 | RTEQ | RUSH INTRASTATE TRANSPORTATION | | | SCAC4 |
| 9044 | RTER | R T E TRANSPORT LTD | | | SCAC4 |
| 9045 | RTET | RITE TRUCK LINES INC | | | SCAC3 |
| 9046 | RTEV | REITER TRANSPORTATION SERVICES INC | | | SCAC4 |
| 9047 | RTEW | RITE-WAY | | | SCAC3 |
| 9048 | RTEW | ROADMASTERS POWER TRANSPORT LP | | | SCAC4 |
| 9049 | RTEX | Rail Trusts Equipment Inc. | 7/2000-7/2005 (not listed) | | NAKINA |
| 9050 | RTEX | Reese Enterprises, Inc. | added 7/1974; 1/1975; eliminated 1/1979 | | NAKINA |
| 9051 | RTEX | Reese Tank Car Leasing Corp. | added 10/1968; 4/1970; eliminated 7/1974 | | NAKINA |
| 9052 | RTEX | Rosman Tanning Extract Co. | 7/1937-1/1946 | | NAKINA |
| 9053 | RTEX | Rosman Tanning Extract Co. | Apr-38 | | NRHS |
| 9054 | RTEX | Reese Tank Car Leasing Corp. | added 10/68; 4/70 | | NRHS |
| 9055 | RTEX | Reese Enterprises, Inc. | 1/75; eliminated 1/79 | | NRHS |
| 9056 | RTEX | Rail Trusts Equipment Inc. | Jul-00 | | NRHS |
| 9057 | RTEX | *ROSMAN TANNING EXTRACT CO. | | | PWRC |
| 9058 | RTEX | *REESE ENTERPRISES, INC. [REESE TANK CAR LEASING CORP.] | | | PWRC |
| 9059 | RTEX | +RAIL TRUSTS EQUIPMENT INC. | | | PWRC |
| 9060 | RTEX | Rail Trusts Equipment | | | RSRV |
| 9061 | RTEX | Rail Trusts Equipment Inc. | | USA | TRAFFIC |
| 9062 | RTEY | REIMER TRANSPORT INC | | | SCAC4 |
| 9063 | RTF | Ruta | | E | AVCODES |
| 9064 | RTFB | RELAINT TRANSPORTATION C F | | | SCAC4 |
| 9065 | RTFC | RAPID TRANSFER COMPANY, THE | | | SCAC3 |
| 9066 | RTFD | RTF INDUSTRIES INC | | | SCAC3 |
| 9067 | RTFF | RUTHERFORD FARMS | | | SCAC4 |
| 9068 | RTFI | ROLLING THUNDER FREIGHT LINES INC | | | SCAC3 |
| 9069 | RTFI | ROMAN TOOL & FABRICATING INC | | | SCAC4 |
| 9070 | RTFI | RAILL TRANSPORT FEROVIAR INTERNATIONAL SRL | | RO | VKM |
| 9071 | RTFK | ROCKTENN | | | SCAC4 |
| 9072 | RTFL | RICHMOND TRANSFER LTD | | | SCAC3 |
| 9073 | RTFL | RASTELLI FOODS | | | SCAC4 |
| 9074 | RTFM | ROYAL TURF FARMS TRUCKING | | | SCAC3 |
| 9075 | RTFN | ROUND TOP FARM AND TRANSPORTATION L | | | SCAC4 |
| 9076 | RTFQ | RIVERSIDE TRANSFER & STORAGE INC | | | SCAC3 |
| 9077 | RTFR | RAINTREE FREIGHT SYSTEM | | | SCAC3 |
| 9078 | RTFR | RAIL TRANSFER | | | SCAC4 |
| 9079 | RTFT | RATLIFF TRUCKING INC | | | SCAC3 |
| 9080 | RTFT | R T F TRANSPORTATION | | | SCAC4 |
| 9081 | RTFU | AMURTRANSECO LTD | | | SCAC4 |
| 9082 | RTFV | REL TRAFFIC SERVICES LIMITED | | | SCAC3 |
| 9083 | RTFY | RELIABLE TRUCKING SERVICE INC | | | SCAC4 |
| 9084 | RTG | Rely AS | Callsign: Reitan, | N | AVCODES |
| 9085 | RTGA | ROSS TRUCKING | | | SCAC3 |
| 9086 | RTGA | RT&T LOGISTICS INC | | | SCAC4 |
| 9087 | RTGB | RELIABLE TRUCKING SERVICE INC | | | SCAC4 |
| 9088 | RTGC | ROBERTS TRUCKING COMPANY | | | SCAC3 |
| 9089 | RTGC | ROYANNS TRANSPORTATION GROUP NC | | | SCAC4 |
| 9090 | RTGD | R TWO TRUCKING INC | | | SCAC4 |
| 9091 | RTGG | RIBELIN TRUCKING INC | | | SCAC3 |
| 9092 | RTGG | RUTTEN, T G TRUCKING INC | | | SCAC4 |
| 9093 | RTGH | ROBS TRUCKING INC | | | SCAC3 |
| 9094 | RTGI | RAVEN TRUCKING COMPANY | | | SCAC3 |
| 9095 | RTGM | REAL TRUCKING | | | SCAC3 |
| 9096 | RTGO | ROOTS GOODS CARRIERS LTD | | | SCAC4 |
| 9097 | RTGQ | ROYSTER TRUCKING SERVICE | | | SCAC3 |
| 9098 | RTGR | R A M TRUCKING CO INC | | | SCAC3 |
| 9099 | RTGS | RANGER TRUCKING SERVICES | | | SCAC3 |
| 9100 | RTGS | RANGER TRUCKING SERVICE | | | SCAC4 |
