| 9101 | RTHC | ROTHMAN, M & CO INC | | | SCAC4 |
| 9102 | RTHD | ROYAL II (TWO) HOUR DELIVERY | | | SCAC3 |
| 9103 | RTHF | RUTHERFORD VAN LINES INC | | | SCAC3 |
| 9104 | RTHF | RUTHERFORD TRUCKING INC | | | SCAC4 |
| 9105 | RTHG | RUTHIG TRANSP CORP | | | SCAC3 |
| 9106 | RTHI | ROTH TRUCK SERVICE INC | | | SCAC3 |
| 9107 | RTHJ | R & L TRANSPORTATION LLC | | | SCAC4 |
| 9108 | RTHK | ROLLINS TRANSPORT | | | SCAC4 |
| 9109 | RTHL | ROLLANS, THOMAS L | | | SCAC3 |
| 9110 | RTHM | ROTH TRUCKING INC | | | SCAC3 |
| 9111 | RTHM | RANCHO TRES HERMANOS | | | SCAC4 |
| 9112 | RTHN | RAYTHEON COMPANY | | | SCAC3 |
| 9113 | RTHN | RIMS TRANSPORT - HAMILTON | | | SCAC4 |
| 9114 | RTHO | RENO-TAHOE CONNECTION | | | SCAC3 |
| 9115 | RTHP | ROMES TRUCKING LLC | | | SCAC4 |
| 9116 | RTHT | ROTH TRUCKING | | | SCAC3 |
| 9117 | RTHU | CARU CONTAINERS BV | | NL | BIC |
| 9118 | RTHU | CARU CONTAINER BV | | | SCAC4 |
| 9119 | RTHW | RATHWELL TRANSPORTATION INC | | | SCAC3 |
| 9120 | RTI | Rotor Italia S.A.S. Di Vanni Claudio E.C. | Callsign: Rotoritalia, AOC revoked by ENC on 26 September 2019. | I | AVCODES |
| 9121 | RTI | RAIL TOURS, INC. | | | PWRC |
| 9122 | RTI | Railtrans International, s.r.o | | SK | VKM |
| 9123 | RTIA | REGIONAL TOURS INC | | | SCAC3 |
| 9124 | RTIA | ROHRER TRUCKING INC | | | SCAC4 |
| 9125 | RTIB | R T INC | | | SCAC3 |
| 9126 | RTIB | RTI TRANSPORTATION SERVICES INC | | | SCAC4 |
| 9127 | RTID | REMMED TRANSPORTATION INC | | | SCAC4 |
| 9128 | RTIE | ROCKMAN TRANSPORT INC | | | SCAC4 |
| 9129 | RTIF | RESPONSIVE TRUCKING INC | | | SCAC3 |
| 9130 | RTIF | RESPONSIVE TRUCKING INC | | | SCAC4 |
| 9131 | RTIG | ROUSH TRUCKING | | | SCAC3 |
| 9132 | RTIG | ROUSH TRUCKING | | | SCAC4 |
| 9133 | RTIH | RICHTER TRANSPORT LLC | | | SCAC4 |
| 9134 | RTII | RANDOM TASKS INC. | | | SCAC4 |
| 9135 | RTIK | RTI BROKERAGE INC | | | SCAC4 |
| 9136 | RTIL | RHENUS TRANSPORT INTERNATIONAL CORP | | | SCAC3 |
| 9137 | RTIM | R.T.I., Riegel Transportation, INC | | | SCAC3 |
| 9138 | RTIO | RAUTIO, DAN TRUCKING | | | SCAC3 |
| 9139 | RTIO | REPROGRAPHIC TECHNOLOGY INTERNATION | | | SCAC4 |
| 9140 | RTIP | R & T INC | | | SCAC3 |
| 9141 | RTIP | RAM TRANSPORTATION INC | | | SCAC4 |
| 9142 | RTIQ | ROUNTREE TRANSPORTATION INC | | | SCAC4 |
| 9143 | RTIS | RAIL TRAILER SERVICE | | | SCAC3 |
| 9144 | RTIS | R T I RESEARCH LTD | | | SCAC4 |
| 9145 | RTIT | RTI TRANSPORT INC | | | SCAC3 |
| 9146 | RTIT | RTI TRANSPORT INC | | | SCAC4 |
| 9147 | RTIV | RIVAS TRUCKING INC | | | SCAC4 |
| 9148 | RTIW | ROME TRANSPORTATION INC | | | SCAC4 |
| 9149 | RTIW | FERMIPO, s.r.o. | | SK | VKM |
| 9150 | RTIX | RTI—Railroad Services | 7/2000-7/2005 (not listed) | | NAKINA |
| 9151 | RTIX | RTI--Railroad Services | Jul-00 | | NRHS |
| 9152 | RTIX | RTI-RAILROAD SERVICES [RAIL EQUIPMENT & TRANSPORTATION, INC.} | | | PWRC |
| 9153 | RTIX | RTI - Railroad Services | | | RSRV |
| 9154 | RTIX | RTI RAILROAD SERVICES | | | SCAC4 |
| 9155 | RTJA | RAPID TRANSPORT SERVICES LLC | | | SCAC4 |
| 9156 | RTJC | ROEHL LOGISTICS INC | | | SCAC4 |
| 9157 | RTJG | RELIABLE TRANSPORT CORPORATION | | | SCAC4 |
| 9158 | RTJH | REDDY TRANSPORTS INC | | | SCAC4 |
| 9159 | RTJJ | ROCKWELL TRADING SA | | | SCAC4 |
| 9160 | RTJK | ROAD TEN (10) CORP | | | SCAC4 |
| 9161 | RTJL | RICOS TRUCKING LOGISTIC | | | SCAC4 |
| 9162 | RTJM | RIVERSIDE TRANSPORTATION LLC | | | SCAC4 |
| 9163 | RTJN | REAL TRANSPORT INC | | | SCAC4 |
| 9164 | RTJP | ROLL TRANSPORT | | | SCAC4 |
| 9165 | RTK | Rotkopf Aviation Italia S.R.L. | Callsign: Rotko, | I | AVCODES |
| 9166 | RTK | | ~Sorin Oprisan | GB | TRAFFIC |
| 9167 | RTKC | ROA TRUCKING INC | | | SCAC4 |
| 9168 | RTKD | RED TRUCKING EXPRESS LLC | | | SCAC4 |
| 9169 | RTKE | RADTKE TRANSFER CO | | | SCAC3 |
| 9170 | RTKE | RAMA TRUCKING ENTERPRISE INC | | | SCAC4 |
| 9171 | RTKF | RTR TRUCKING | | | SCAC4 |
| 9172 | RTKG | ROSS TRUCKING CO | | | SCAC3 |
| 9173 | RTKG | RTI TRUCKING | | | SCAC4 |
| 9174 | RTKI | ROLAND, T L TRUCKING CO INC | | | SCAC3 |
| 9175 | RTKI | ROSE TRUCKING INC | | | SCAC4 |
| 9176 | RTKK | ROGERS TRUCKING | | | SCAC3 |
| 9177 | RTKK | RTK TRUCKING | | | SCAC4 |
| 9178 | RTKL | RESERVE TRUCK LINES, INC | | | SCAC3 |
| 9179 | RTKN | ROOT TRUCKING INC | | | SCAC3 |
| 9180 | RTKN | R G TRUCKING | | | SCAC4 |
| 9181 | RTKO | RASTA TRUCKING CO | | | SCAC4 |
| 9182 | RTKP | RITCHEY TRUCKING INC | | | SCAC3 |
| 9183 | RTKP | RITCHEY, TOM TRANSPORT INC | | | SCAC4 |
| 9184 | RTKQ | RODGERS TRUCKING | | | SCAC3 |
| 9185 | RTKR | RYDER TRUCK RENTAL INC | | | SCAC3 |
| 9186 | RTKR | RESTORED TRUCKING CO RTC | | | SCAC4 |
| 9187 | RTKS | RAM TRUCKING | | | SCAC3 |
| 9188 | RTKS | RAM TRUCKING INC | | | SCAC4 |
| 9189 | RTKT | R C TRUCKING | | | SCAC4 |
| 9190 | RTKU | LLC RTTK | | RUS | BIC |
| 9191 | RTKW | RUBICON TANKERS LTD | | | SCAC3 |
| 9192 | RTKW | RENNIE TRUCKING LLC | | | SCAC4 |
| 9193 | RTKY | RICHARDSON TRUCKING INC | | | SCAC4 |
| 9194 | RTL | Rheintalflug Seewald Gesellschaft mbH | IATA: WE, Callsign: Rheintal, IATA Prefix: 915, Name changed to Rheintalflug Vorarlberger Luftfahrtgi | A | AVCODES |
| 9195 | RTL | Rheintalflug Vorarlberger Luftfahrtgi | IATA: WE, Callsign: Rheintal, IATA Prefix: 915, Ceased operations on 31 December 2002. Desginator WE* reinstated by IATA. Name changed from Rheintalflug Seewald Gesellschaft mbH | A | AVCODES |
| 9196 | RTL | Air Thanlwin Holding Company Limited | IATA: ST, Callsign: Royal Bird, Name changed from Yangon Airways Limited in February 2014. IATA Designator changed from YH*. ICAO designator changed from AYG. IATA designator changed from HK* w.e.f. 15 June 2009. | MYA | AVCODES |
| 9197 | RTL | Riviera Trains Ltd. | | UK | VKM |
| 9198 | RTLA | RANTALA TRUCKING | | | SCAC3 |
| 9199 | RTLC | RIGHT TRUCKING LINES LTD INC | | | SCAC3 |
| 9200 | RTLD | RTL SERVICES INC | | | SCAC4 |
