| 101 | RUKB | Rügensche Kleinbahn GmbH | DE | VKM | |
| 102 | RUKC | RUGGIERO TRUCKING CO INC | SCAC4 | ||
| 103 | RUKM | RUCKER MOVING & STORAGE COMPANY | SCAC3 | ||
| 104 | RUKN | RUCKMAN, ROBERT | SCAC3 | ||
| 105 | RUKN | RUKAJ, NIKOLA GALLERY | SCAC4 | ||
| 106 | RUKO | RUKO PRODUCTS INC | SCAC4 | ||
| 107 | RUKR | RUCKER TRUCKING & LEASING INC | SCAC3 | ||
| 108 | RUKS | ROSE, MICK TRUCKING | SCAC4 | ||
| 109 | RUKT | RUKERT TERMINALS CORP | SCAC3 | ||
| 110 | RUKT | RUKERT TERMINALS CORP | SCAC4 | ||
| 111 | RULB | RULEAU BROS TRANSPORT INC | SCAC3 | ||
| 112 | RULBD | RULMENTI SA | RO | VKM | |
| 113 | RULC | RUSSELL, L B CHEMICALS INC | SCAC3 | ||
| 114 | RULC | RAPIDEX USA LLC | SCAC4 | ||
| 115 | RULD | RUSSELL-LANDRUM MOV & STGE INC | SCAC3 | ||
| 116 | RULH | RUDOLPHS INC | SCAC4 | ||
| 117 | RULI | RUSH LOGISTICS INC | SCAC4 | ||
| 118 | RULK | RUSSELL TRUCKING | SCAC3 | ||
| 119 | RULL | RUSSELL TRANSFER COMPANY | SCAC3 | ||
| 120 | RULP | ROUSSILLE TRANSPORT INC | SCAC3 | ||
| 121 | RULQ | RUDLOFF VAN & STORAGE | SCAC3 | ||
| 122 | RULR | RUTLEDGE, RICHARD | SCAC4 | ||
| 123 | RULS | RUDYS LIMOUSINE SERVICE INC | SCAC3 | ||
| 124 | RULS | RULIS TRUCKING INC | SCAC4 | ||
| 125 | RULT | RUSSELL TRANSPORT INC | SCAC4 | ||
| 126 | RULY | RUSSELL TRANSPORT INC (LOCAL DRAYAG | SCAC4 | ||
| 127 | RUM | Air Rum | ICAO1 | ||
| 128 | RUMB | RUMBLE TRANSPORT LIMITED | SCAC3 | ||
| 129 | RUME | ROUTE MESSENGER SERVICES | SCAC3 | ||
| 130 | RUMI | RUMI, RICHARD & CO INC | SCAC4 | ||
| 131 | RUMK | RUMBOLD, KENNETH D | SCAC3 | ||
| 132 | RUMO | ALL-Rumo Logistica | BR | TRAFFIC | |
| 133 | RUMQ | RUSSO MOTOR EXPRESS INC | SCAC3 | ||
| 134 | RUMR | RUSH MOTOR TRANSIT | SCAC3 | ||
| 135 | RUMS | RUNGE MOVING & STORAGE | SCAC3 | ||
| 136 | RUMV | RUSKIN THE MOVER | SCAC3 | ||
| 137 | RUN | ACT Havayollari | ICAO1 | ||
| 138 | RUNC | RUNAWAY INC | SCAC4 | ||
| 139 | RUND | RUND EXPRESS INC | SCAC3 | ||
| 140 | RUNF | RUNNIN FREE INC | SCAC3 | ||
| 141 | RUNI | RU-AN INC | SCAC3 | ||
| 142 | RUNQ | RUNNERS GROUP CORP | SCAC3 | ||
| 143 | RUNR | RUN-RITE FREIGHT SYSTEMS INC | SCAC4 | ||
| 144 | RUNS | RUSSELL-STIMPSON, INC | SCAC3 | ||
| 145 | RUNT | ROUNTREE SOD SERVICE | SCAC3 | ||
| 146 | RUNW | RUNWAY EXPRESS | SCAC3 | ||
| 147 | RUOC | RUSE TRANSFER | SCAC3 | ||
| 148 | RUOI | RUSSELL OIL CO INC | SCAC4 | ||
| 149 | RUON | ROUTE ONE TRANSPORTATION SERVICES | SCAC3 | ||
| 150 | RUOR | RUSHER OIL CO INC | SCAC4 | ||
| 151 | RUOT | RUDOLPH TRANSFER & STORAGE CO | SCAC3 | ||
| 152 | RUPC | ROUNDUP POWDER CO | SCAC3 | ||
| 153 | RUPD | RUSTCO PRODUCTS CO | SCAC3 | ||
| 154 | RUPH | RUPPRECHT, HERBERT INC | SCAC3 | ||
| 155 | RUPK | RUPP, KEVIN TRUCKING | SCAC4 | ||
| 156 | RUPL | RUPPEL TRANSFER INC | SCAC3 | ||
| 157 | RUPM | RUPPE MOTOR LINES INC | SCAC3 | ||
| 158 | RUPR | RUPPEL, RICHARD D | SCAC3 | ||
| 159 | RUPT | RUPPRECHT, RAY TRANSPORT SERVICE | SCAC3 | ||
| 160 | RUQT | RUTTER BROS DAIRY INC | SCAC4 | ||
| 161 | RUR | Rusaero | ICAO1 | ||
| 162 | RURN | RUCKRUN | SCAC4 | ||
| 163 | RURT | RUSSART TRAVEL SERVICE | SCAC3 | ||
| 164 | RUS | Cirrus Airlines | IATA: C9 | ICAO1 | |
| 165 | RUSA | RUSLIS INC | SCAC4 | ||
| 166 | RUSA | Armed Forces of the Russian Federation | RUS | TRAFFIC | |
| 167 | RUSB | RUSTAMERE STABLES | SCAC4 | ||
| 168 | RUSC | RUBYSTAR SHIPPING CORPORATION | SCAC3 | ||
| 169 | RUSC | RUSCH, K W INC | SCAC4 | ||
| 170 | RUSE | RUSHING TRANSPORT LLC | SCAC4 | ||
| 171 | RUSF | RUSSELL TRANSFER | SCAC3 | ||
| 172 | RUSG | RUSTIC MATERIALS CO INC | SCAC3 | ||
| 173 | RUSH | RUSH FREIGHT INC | SCAC3 | ||
| 174 | RUSH | RUSHTON, JIM TRUCKING | SCAC4 | ||
| 175 | RUSH | Rush Rail AB | SE | VKM | |
| 176 | RUSJ | RUSH, JOHN | SCAC3 | ||
| 177 | RUSK | RUSSELL TRUCKING | SCAC4 | ||
| 178 | RUSL | RUSSELL, H. B | SCAC3 | ||
| 179 | RUSM | RUSH TRANSPORT INC | SCAC3 | ||
| 180 | RUSN | RUSSELLS H J INC | SCAC3 | ||
| 181 | RUSN | RUSHDALE ANTIQUES | SCAC4 | ||
| 182 | RUSO | RUSSO, ROBERT R | SCAC3 | ||
| 183 | RUSO | RUSH TRANSPORTATION INC | SCAC4 | ||
| 184 | RUSP | RUTHERFORD, S P TRANSFER AND STORAG | SCAC3 | ||
| 185 | RUSQ | RUSSEY DELIVERY SERVICE | SCAC3 | ||
| 186 | RUSR | RUTHERFORD STORAGE INC | SCAC3 | ||
| 187 | RUSS | RUSSO SERVICES INC | SCAC3 | ||
| 188 | RUST | RUSTAN, LARRY TRUCKING INC | SCAC4 | ||
| 189 | RUSU | REEDEREI ERNST RUSS | SCAC3 | ||
| 190 | RUSU | RUSRAIL LTD | SCAC4 | ||
| 191 | RUSV | R U S T TRUCKING | SCAC3 | ||
| 192 | RUSX | First Union Rail | added 10/1996; 7/2000-7/2005 | NAKINA | |
| 193 | RUSX | USL Capital Rail Services | added 4/1994; eliminated 10/1996 | NAKINA | |
| 194 | RUSX | U.S. Rail Services, Inc. | added 4/1978; 1/1980-1/1994; eliminated 4/1994 | NAKINA | |
| 195 | RUSX | Rail-U.S. Leasing, Inc. | added 4/1973; 1/1975; eliminated 4/1978 | NAKINA | |
| 196 | RUSX | Resinera Uruapan, S. de R.L. | added 1/1963; 7/1965-4/1970; eliminated 10/1970 | NAKINA | |
| 197 | RUSX | Resinera Uruapan, S.A. | 1/1945-4/1961; eliminated 1/1963 | NAKINA | |
| 198 | RUSX | Resinera Uruapan, S. de R.L. | 1/52-4/70; eliminated 10/70 | NRHS | |
| 199 | RUSX | Rail-U.S. Leasing, Inc. | added 4/73; 1/75; eliminated 4/78 | NRHS | |
| 200 | RUSX | U.S. Rail Services, Inc. | added 4/78; 1/80-1/94; eliminated 4/94 | NRHS |