| 9101 | AMPY | AMERICAN EXPRESS TRUCKING CO | | | SCAC4 |
| 9102 | AMPZ | ADM PLANT | | | PWRC |
| 9103 | AMQ | Aeromedicare Ltd. | Callsign: Lifeline, Ceased operations. | GB | AVCODES |
| 9104 | AMQ | Aircraft Management and Consulting SP. z.o.o. | Callsign: Amex, Name changed to AMC Aviation SP. z.o.o. | PL | AVCODES |
| 9105 | AMQ | AMC Aviation SP z.o.o. | Callsign: Amex, Name changed from Aircraft Management and Consulting SP. z.o.o. | PL | AVCODES |
| 9106 | AMQ | Aeromedicare Ltd. | | | ICAO1 |
| 9107 | AMQA | AMMCO MOVING AND STORAGE INC | | | SCAC3 |
| 9108 | AMQB | AMBRA MANAGEMENT A S | | | SCAC3 |
| 9109 | AMQD | AMERICAN DRIVER SERVICE INC | | | SCAC3 |
| 9110 | AMQE | AMS EXPRESS INC | | | SCAC3 |
| 9111 | AMQE | AMS LOGISTICS INC | | | SCAC4 |
| 9112 | AMQF | A & M TRANSPORT | | | SCAC3 |
| 9113 | AMQG | A & M MOVING & STORAGE INC | | | SCAC3 |
| 9114 | AMQH | A M TRANSIT | | | SCAC3 |
| 9115 | AMQI | ALL MODES BROKERAGE DIV | | | SCAC3 |
| 9116 | AMQI | ALL MODES INC | | | SCAC4 |
| 9117 | AMQK | AMERICAN TRUCK LINES INC | | | SCAC3 |
| 9118 | AMQL | AMLOID CORPORATION | | | SCAC3 |
| 9119 | AMQM | AMERICAN MOVING COMPANY | | | SCAC3 |
| 9120 | AMQN | AMRON METALS | | | SCAC3 |
| 9121 | AMQN | ALSUM TRANSPORT INC | | | SCAC4 |
| 9122 | AMQO | AMPLESON COMPANY S A | | | SCAC3 |
| 9123 | AMQO | A MANO | | | SCAC4 |
| 9124 | AMQP | AMIQUIP | | | PWRC |
| 9125 | AMQP | A & M EQUIPMENT | | | SCAC3 |
| 9126 | AMQQ | A/M CONTAINER SERVICE | | | SCAC4 |
| 9127 | AMQR | AMR SERVICES CORPORATION | | | SCAC3 |
| 9128 | AMQS | AM & S TRUCKING CO | | | SCAC3 |
| 9129 | AMQV | ACCENT MOVING & STORAGE INC | | | SCAC3 |
| 9130 | AMQV | ASM LOGISTICS SERVICES | | | SCAC4 |
| 9131 | AMQW | AMONS & CO | | | SCAC4 |
| 9132 | AMQY | AMONG BRENDA'S QUILTS | | | SCAC4 |
| 9133 | AMR | Air Specialties Corporation d/b/a Air American / Total Air | Callsign: Air Am, | USA | AVCODES |
| 9134 | AMR | Air Marine | Callsign: Air Marine, | USA | AVCODES |
| 9135 | AMR | Air Specialties Corporation | | | ICAO1 |
| 9136 | AMR | The Arcata and Mad River R.R. Co. | added 11/1973; 1/1975-1/1985; eliminated 4/1985 | | NAKINA |
| 9137 | AMR | The Arcata and Mad River R.R. Co. | added 11/73; 1/75-1/80; eliminated 4/85 | | NRHS |
| 9138 | AMR | UP [ARCATA & MAD RIVER RAILROAD] | | | PWRC |
| 9139 | AMR | Arcata and Mad River Railroad | | | RSRV |
| 9140 | AMR | The Arcata and Mad River R.R. Co. | | USA | TRAFFIC |
| 9141 | AMR | Altmark- Rail | | DE | VKM |
| 9142 | AMRA | AMERICAN INTERNATIONAL RENT-A-CAR | | | SCAC3 |
| 9143 | AMRA | AUTOTRANSPORTES MORA | | | SCAC4 |
| 9144 | AMRB | AMERICAN RED BALL TRANSIT COMPANY, INC. | | | SCAC3 |
| 9145 | AMRB | AMERICAN RED BALL TRANSIT COMPANY, | | | SCAC4 |
| 9146 | AMRC | AMERIBEC TRANSPORT | | | SCAC4 |
| 9147 | AMRD | AMR DELIVERIES LIMITED | | | SCAC3 |
| 9148 | AMRD | AMEICAN READY MIX INC | | | SCAC4 |
| 9149 | AMRE | A & M PRIORITY FREIGHT SERVICES | | | SCAC4 |
| 9150 | AMRF | A & M REFRIGERATED TRANSPORTATION C | | | SCAC3 |
| 9151 | AMRG | ARMSTRONG TRANSFER & STORAGE CO INC | | | SCAC3 |
| 9152 | AMRG | ARMSTRONG RELOCATION COMPANY (BROKE | | | SCAC4 |
| 9153 | AMRH | AMERPOL TRANSPORT INC | | | SCAC4 |
| 9154 | AMRI | AMERICAN RIVER MOVING & STG INC | | | SCAC3 |
| 9155 | AMRJ | ARMSTRONG, R J | | | SCAC3 |
| 9156 | AMRJ | A M R TRUCKING LTD | | | SCAC4 |
| 9157 | AMRK | ARAMARK UNIFORM SERVICES (CANADA) L | | | SCAC4 |
| 9158 | AMRL | ALLIED METAL RECYCLING INC | | | SCAC4 |
| 9159 | AMRN | AMERICAN TRANSPORT INC | | | SCAC3 |
| 9160 | AMRO | AMERICARRIERS TRANSPORT INC | | | SCAC3 |
| 9161 | AMRP | AMEROP SUGAR CORPORATION | | | SCAC4 |
| 9162 | AMRQ | AMERSPED INC | | | SCAC3 |
| 9163 | AMRQ | AGRIMETAL INC | | | SCAC4 |
| 9164 | AMRR | AMAR TRANSPORT INC | | | SCAC4 |
| 9165 | AMRS | AMERICAN SPIRIT TRUCKING COMPANY IN | | | SCAC3 |
| 9166 | AMRT | ARKANSAS & MEMPHIS RAILWAY BRIDGE & TERMINAL CO. | | | PWRC |
| 9167 | AMRT | AMERICAN RIVER TRANSPORTATION CO | | | SCAC3 |
| 9168 | AMRT | AMERICAN RIVER TRANSPORTATION CO | | | SCAC4 |
| 9169 | AMRTM | Aston Manor Road Transport Museum | | GB | TRAFFIC |
| 9170 | AMRU | ALASKA MARINE LINES, INC. | | | PWRC |
| 9171 | AMRU | Alaska Marine Lines | | | RSRV |
| 9172 | AMRU | MAXU CONTAINERS, LTD. | | | SCAC4 |
| 9173 | AMRV | ALCMAR LIMITED | | | SCAC4 |
| 9174 | AMRW | AMERICAN-WANDELL MOVING SERVICES IN | | | SCAC3 |
| 9175 | AMRW | AMERICAN WANDELL MOVING SERVICE LLC | | | SCAC4 |
| 9176 | AMRX | Consolidated Oil & Transportation Co., Inc. | added 10/1997; 7/2000; eliminated 4/2003; 7/2005 (not listed) | | NAKINA |
| 9177 | AMRX | Ameropan Railcar Corp. | added 1/1990; 1/1994; eliminated 10/1997 | | NAKINA |
| 9178 | AMRX | American Refrigerator Transit Co. | 1/1946 (not listed); 4/1947-10/1966; eliminated 1/1969; 4/1970-1/1980 | | NAKINA |
| 9179 | AMRX | American Refining Co. (American Refining Properties) | 7/1930 | | NAKINA |
| 9180 | AMRX | American Refining Co. | 8/1920-7/1923 | | NAKINA |
| 9181 | AMRX | American Refrigerator Transit Co. | 1/52-10/66; eliminated 1/69; 4/70-1/80 | | NRHS |
| 9182 | AMRX | Ameropan Railcar Corp. | added 1/90; 1/94; eliminated 10/97 | | NRHS |
| 9183 | AMRX | Consolidated Oil & Transportation Co., Inc. | added 10/97; 7/2000 | | NRHS |
| 9184 | AMRX | *AMERICAN REFINING PROPERTIES (AMERICAN REFINING CO.) | | | PWRC |
| 9185 | AMRX | *AMEROPAN RAILCAR CORP. [AMERICAN REFRIGERATOR TRANSIT CO.] | | | PWRC |
| 9186 | AMRX | *CONSOLIDATED OIL & TRANSPORTATION CO. | | | PWRC |
| 9187 | AMRX | +WESTERN FUELS & ASPGHALT SUPPLY, INC. | | | PWRC |
| 9188 | AMRX | American Refining (Amerimex Rail) | | | RSRV |
| 9189 | AMRX | AMEROPAN RAILCAR CORPORATION | | | SCAC3 |
| 9190 | AMRY | AMER TRANSIT CO INC | | | SCAC4 |
| 9191 | AMRZ | *AMERICAN CHASSIS LEASING, INC. | | | PWRC |
| 9192 | AMRZ | *AMERICAN MAIZE | | | PWRC |
| 9193 | AMRZ | American Chassis Leasing | | | RSRV |
| 9194 | AMRZ | AMERICAN CHASSIS LEASING INC | | | SCAC4 |
| 9195 | AMS | Air Muskoka | Callsign: Air Muskoka, | CDN | AVCODES |
| 9196 | AMS | Air Muskoka | IATA: 8K, Callsign: Air Muskoka, Designator recalled by IATA | CDN | AVCODES |
| 9197 | AMS | Air Muskoka | | | ICAO1 |
| 9198 | AMSA | AMSTAN TRUCKING, INC. | | | SCAC3 |
| 9199 | AMSA | AMSTAN LOGISTICS | | | SCAC4 |
| 9200 | AMSB | ACME MOVING & STORAGE CO INC | | | SCAC3 |
