| 1101 | RBMT | RBM TRUCKING | | | SCAC4 |
| 1102 | RBMU | BOURGEY MONTREUIL ROUTE | | | SCAC3 |
| 1103 | RBMV | ROBERSON MOVING & STORAGE | | | SCAC3 |
| 1104 | RBMV | REIMER BUILDING MOVERS | | | SCAC4 |
| 1105 | RBN | Red Baron Aviation, Inc. | Callsign: Red Baron, | USA | AVCODES |
| 1106 | RBN | Red Baron Aviation | | | ICAO1 |
| 1107 | RBNB | RUBIN, BEN EXPRESS | | | SCAC3 |
| 1108 | RBNC | ROBIN CARTAGE INC | | | SCAC3 |
| 1109 | RBND | ROBINSONS DELIVERY SERVICE INC | | | SCAC3 |
| 1110 | RBND | ROBINSONS DELIVERY SERVICE INC | | | SCAC4 |
| 1111 | RBNE | ROBIN EXPRESS INC | | | SCAC3 |
| 1112 | RBNE | ROBIN EXPRESS INC | | | SCAC4 |
| 1113 | RBNG | R B & G CO INC | | | SCAC3 |
| 1114 | RBNI | ROBINSON, DALE TRUCKING INC | | | SCAC3 |
| 1115 | RBNJ | ROBINS, JONATHAN B TRANSPORT CO INC | | | SCAC3 |
| 1116 | RBNK | ROBINSON TRUCKING | | | SCAC3 |
| 1117 | RBNM | ROBINSONS MELROSE EXPRESS | | | SCAC3 |
| 1118 | RBNO | ROBINSON TRANSFER | | | SCAC3 |
| 1119 | RBNO | ROBINSON TRANSFER INC | | | SCAC4 |
| 1120 | RBNP | ROBINSON TRANSPORT INC | | | SCAC3 |
| 1121 | RBNP | ROBINSON TRANSPORT INC | | | SCAC4 |
| 1122 | RBNQ | RABIN & SHOOBS INC | | | SCAC3 |
| 1123 | RBNQ | ROBINSON TRUCKING | | | SCAC4 |
| 1124 | RBNR | RED BLUFF AND REDDING TRUCKING | | | SCAC3 |
| 1125 | RBNS | ROBINS TRANSFER COMPANY, INC | | | SCAC3 |
| 1126 | RBNT | ROBINSON TRANSPORTATION | | | SCAC4 |
| 1127 | RBNU | RECKITT BENCKISER LIMITED | | | SCAC4 |
| 1128 | RBNX | Fruit Growers Express Co. | 7/1954-1/1980; eliminated 10/1989; 1/1994 (not listed) | | NAKINA |
| 1129 | RBNX | National Car Co. | 1/1950-1/1952 | | NAKINA |
| 1130 | RBNX | National Car Co. | Jan-52 | | NRHS |
| 1131 | RBNX | Fruit Growers Express Co. | 10/57-1/80; eliminated 10/89; 1/94 | | NRHS |
| 1132 | RBNX | FRUIT GROWERS EXPRESS CO, (NATIONAL CAR CO.) | | | PWRC |
| 1133 | RBNX | Fruit Growers Express | | | RSRV |
| 1134 | RBO | Rainbow Cargo Express | Callsign: Race, | GH | AVCODES |
| 1135 | RBO | Regionalbus Ostbayern GmbH | | D | TRAFFIC |
| 1136 | RBOA | ROBERTSON, OSCAR & ASSOCIATES INC | | | SCAC3 |
| 1137 | RBOB | ROTHWELL, BOB | | | SCAC4 |
| 1138 | RBOC | RAINBOW CARRIERS INC | | | SCAC3 |
| 1139 | RBOC | ROBERT B OUR CO INC | | | SCAC4 |
| 1140 | RBOD | ROCHELLE-ASHTON-BYRON OREGON READY | | | SCAC3 |
| 1141 | RBOF | RELIABLE ON TIME FREIGHT | | | SCAC4 |
| 1142 | RBOH | ROBO TRUCKING INC | | | SCAC3 |
| 1143 | RBOH | RED BALL MOVING AND STORAGE OF | | | SCAC4 |
| 1144 | RBOI | ROBO TRUCKING INC | | | SCAC3 |
| 1145 | RBOI | ROBERTSON OIL CO INC | | | SCAC4 |
| 1146 | RBOL | RAINBOW LEASING INC | | | SCAC3 |
| 1147 | RBOL | ROBINSON OIL | | | SCAC4 |
| 1148 | RBON | ROBINSONS TRUCKING | | | SCAC3 |
| 1149 | RBOR | RAINBOW TOURS | | | SCAC3 |
| 1150 | RBOR | RAMBO TRANSPORT LLC | | | SCAC4 |
| 1151 | RBOS | ROBERTOS LIMOUSINE SERVICE INC | | | SCAC3 |
| 1152 | RBOT | RAINBOW TRANSPORT, INC | | | SCAC3 |
| 1153 | RBOU | REEFERBOX CO | | DK | BIC |
| 1154 | RBOW | RAINBOW TRANSPORTATION, INC | | | SCAC3 |
| 1155 | RBOW | RAINBOW LOGISTICS LLC | | | SCAC4 |
| 1156 | RBOX | TTX Co. | added 4/2000; 7/2000-7/2005 | | NAKINA |
| 1157 | RBOX | American Rail Box Car Co. | added 10/1974; 1/1975; eliminated 7/1979 | | NAKINA |
| 1158 | RBOX | Railbox Co. | added 7/1979; 1/1980-1/1994; eliminated 4/2000 | | NAKINA |
| 1159 | RBOX | American Rail Box Car Co. | added 10/1974; 1/1975; eliminated 7/1979 | | NAKINA |
| 1160 | RBOX | Railbox Co. | added 7/1979; 1/1980-1/1994; eliminated 4/2000 | | NAKINA |
| 1161 | RBOX | TTX Co. | added 4/2000; 7/2000 | | NAKINA |
| 1162 | RBOX | American Rail Box Car Co. | added 10/74; 1/75; eliminated 7/79 | | NRHS |
| 1163 | RBOX | Railbox Co. | added 7/79; 1/80-1/94; eliminated 4/2000 | | NRHS |
| 1164 | RBOX | TTX Co. | added 4/2000; 7/2000 | | NRHS |
| 1165 | RBOX | TTX CO. [RAILBOX COMPANY] | | | PWRC |
| 1166 | RBOX | Railbox (TTX Corporation) | | | RSRV |
| 1167 | RBOX | AMERICAN RAIL BOX CAR COMPANY | | | SCAC3 |
| 1168 | RBOX | TTX COMPANY | | | SCAC4 |
| 1169 | RBOX | Railbox | | USA | TRAFFIC |
| 1170 | RBOY | ROBINSON OIL COMPANY | | | SCAC4 |
| 1171 | RBPE | R & B PROPERTIES INC | | | SCAC4 |
| 1172 | RBPI | REDMAN BUILDING PRODUCTS INC | | | SCAC3 |
| 1173 | RBPI | RHODES BROS PAVING INC | | | SCAC4 |
| 1174 | RBPN | R N B TRANSPORT INC | | | SCAC3 |
| 1175 | RBPO | ROBERTS TRANSPORT INC | | | SCAC3 |
| 1176 | RBPQ | ROBERTSON, PAUL | | | SCAC3 |
| 1177 | RBPR | R & B TRANSPORT INC | | | SCAC3 |
| 1178 | RBPS | R B P PRODUCTS | | | SCAC4 |
| 1179 | RBPT | RBP TRANS INC | | | SCAC3 |
| 1180 | RBPT | RAINBOW PRINTING LTD | | | SCAC4 |
| 1181 | RBPW | ROBINSON TRANSPORT AND | | | SCAC4 |
| 1182 | RBPX | Mineral Processing & Marketing Inc. | added 10/2003; eliminated 1/2004; 7/2005 (not listed) | | NAKINA |
| 1183 | RBPX | MINERAL PROCESSING & MARKETING INC. | | | PWRC |
| 1184 | RBPX | MINERAL PROCESSING & MARKETING INC | | | SCAC4 |
| 1185 | RBPZ | REDCO BEET PLANT | | | PWRC |
| 1186 | RBQT | ROBERTS TRUCKING | | | SCAC3 |
| 1187 | RBR | Siam Airnet Co., Ltd. | Callsign: Siam Airnet, | T | AVCODES |
| 1188 | RBR | RICHMOND BELT RAILWAY | | | PWRC |
| 1189 | RBRA | REDMOND, BRENT TRANSPORTATION INC | | | SCAC3 |
| 1190 | RBRA | REDMOND, BRENT TRANSPORTATION INC | | | SCAC4 |
| 1191 | RBRB | RBR TRANSPORTATION | | | SCAC3 |
| 1192 | RBRC | ROBERTS CORP | | | SCAC3 |
| 1193 | RBRC | ROBERT INC | | | SCAC4 |
| 1194 | RBRE | ROBERTS, ELLIS TRUCKING INC | | | SCAC3 |
| 1195 | RBRF | RIPE BROKERAGE | | | SCAC4 |
| 1196 | RBRG | ROBERTS, BILLY TRUCKING INC | | | SCAC4 |
| 1197 | RBRH | ROBERTS, BRYAN | | | SCAC4 |
| 1198 | RBRJ | REBELLO, RICHARD J | | | SCAC3 |
| 1199 | RBRK | ROSE BROTHERS TRUCKING | | | SCAC3 |
| 1200 | RBRL | ROBINSON, C H COMPANY (REVERSE LOGI | | | SCAC4 |
