| 6101 | AHW | Ahnapee and Western Railway (Fox Valley and Western) | | | RSRV |
| 6102 | AHW | The Ahnapee & Western Ry. Co. | | USA | TRAFFIC |
| 6103 | AHWB | AHW Busbetriebe AG | City: Horgen | CH | TRAFFIC |
| 6104 | AHWL | ALTENBURG HARDWOOD LUMBER COMPANY | | | SCAC4 |
| 6105 | AHWQ | ARCHWAY TRUCKING | | | SCAC3 |
| 6106 | AHWZ | FOX VALLEY & WESTERN, LTD. | | | PWRC |
| 6107 | AHWZ | Ahnapee and Western Railway (Fox Valley and Western) | | | RSRV |
| 6108 | AHX | Amakusa Airlines Co., Ltd. | IATA: MZ, Callsign: Amakusa Air, | J | AVCODES |
| 6109 | AHX | American Hominy Co. | 8/1920-7/1923 | | NAKINA |
| 6110 | AHX | AMERICAN HOMINY CO. | | | PWRC |
| 6111 | AHX | Amakusa Airlines | | J | TRAFFIC |
| 6112 | AHXC | ARCHANAX CORP | | | SCAC3 |
| 6113 | AHXI | A & H TRANSPORTATION INC | | | SCAC4 |
| 6114 | AHXL | ALPHAX CO. LTD. | | | SCAC3 |
| 6115 | AHXL | ANDERSON, P H TRANSPORT LLC | | | SCAC4 |
| 6116 | AHXN | ASH TRANSPORT LLC | | | SCAC4 |
| 6117 | AHXS | A/M HOT SHOT EXPRESS LLC | | | SCAC4 |
| 6118 | AHXT | AMIRTHA TRANSPORT LTD | | | SCAC4 |
| 6119 | AHY | Azerbaijan Hava Yollary | IATA: J2, Callsign: Azal, IATA Prefix: 771, Name changed to Azerbaijan Airlines CJSC. | AZ | AVCODES |
| 6120 | AHY | Azerbaijan Airlines CJSC | IATA: J2, Callsign: Azal, IATA Prefix: 771, Name changed from Azerbaijan Hava Yollary. | AZ | AVCODES |
| 6121 | AHY | Azerbaijan Airlines | IATA: J2 | | ICAO1 |
| 6122 | AHYH | ASHBY, HAROLD | | | SCAC3 |
| 6123 | AHZT | AHRENHOLZ TRUCKING | | | SCAC3 |
| 6124 | AI | Air India Limited | ICAO: AIC, Callsign: Air India, IATA Prefix: 098, | IND | AVCODES |
| 6125 | AI | AUTOBUSES INTERNACIONALES S DE R L | | | SCAC4 |
| 6126 | AIA | Avies SA | IATA: U3, Callsign: Avies, Founded and commenced operations in 1991. Ceased operations on 01 April 2016 after AOC withdrawn by Estonian CAA. | EST | AVCODES |
| 6127 | AIA | Air Atlantis | IATA: EJ, Callsign: Air Atlantis, Commenced operations in May 1985. Ceased operations on 30 April 1993. Aircraft transferred to parent company TAP Air Portugal | P | AVCODES |
| 6128 | AIA | Air Atlantic Sarl | IATA: SL, | P | AVCODES |
| 6129 | AIA | Regourd Aviation d/b/a Amelia | IATA: 8R, Callsign: Amelia, | F | AVCODES |
| 6130 | AIA | Avies | IATA: U3 | | ICAO1 |
| 6131 | AIA | AIRCO ALLOY | | | PWRC |
| 6132 | AIAA | AIM LOGISTICS LLC | | | SCAC4 |
| 6133 | AIAB | AGRI INTERMODAL SERVICES LLC | | | SCAC4 |
| 6134 | AIAC | AMERICAN CONTAINER TRANSPORT INC | | | SCAC3 |
| 6135 | AIAD | A & A INTERNATIONAL FREIGHT FORWARD | | | SCAC4 |
| 6136 | AIAE | AMERI-CAN CARRIERS LTD | | | SCAC3 |
| 6137 | AIAG | ARIAS LOGISTICS INC | | | SCAC4 |
| 6138 | AIAH | ARC AIR LOGISTICS INC | | | SCAC4 |
| 6139 | AIAI | AMERICAN PATRIOT LINES | | | SCAC4 |
| 6140 | AIAJ | ALASKA INTERNATIONAL TRANSPORT | | | SCAC4 |
| 6141 | AIAL | AIR ALERT INTERNATIONAL INC | | | SCAC3 |
| 6142 | AIAM | AMERICAN TRANSPORTATION SERVICES IN | | | SCAC4 |
| 6143 | AIAN | AIR ANIMAL INC | | | SCAC3 |
| 6144 | AIAN | A-ONE (A-1) BAIT INC | | | SCAC4 |
| 6145 | AIAO | ARTISAN ASSOCIATES INC | | | SCAC3 |
| 6146 | AIAR | AIR CARE INC | | | SCAC3 |
| 6147 | AIAS | ALEXANDER & HORNUNG INC | | | SCAC4 |
| 6148 | AIAV | ARTESANIAS INDIGO RUGS | | | SCAC4 |
| 6149 | AIAY | ATTALEIA MARINE COMPANY LIMITED | | | SCAC3 |
| 6150 | AIAY | AIM INTEGRATED | | | SCAC4 |
| 6151 | AIB | Airbus Industrie | Callsign: Airbus Industrie, ICAO callsign changed from Victor Kilo | F | AVCODES |
| 6152 | AIB | Airbus Industrie | IATA: VK, Callsign: Victor Kilo, Designator VK recalled by IATA. ICAO callsign changed to Airbus Industrie | F | AVCODES |
| 6153 | AIB | Airbus Industrie | IATA: AP | | ICAO1 |
| 6154 | AIB | Airbus Industries | | F | TRAFFIC |
| 6155 | AIBA | ALL ISLAND MARINE TRANSPORT | | | SCAC4 |
| 6156 | AIBB | ATLANTIC INTERMODAL LOGISTICS LLC | | | SCAC4 |
| 6157 | AIBD | AUTOTRANSPORTES IMPACTO | | | SCAC4 |
| 6158 | AIBH | ALGOMA SHIPPING INC | | | SCAC4 |
| 6159 | AIBI | ATLANTA INDUSTRIAL BROKERS INC | | | SCAC3 |
| 6160 | AIBI | ARIZONA CARGO | | | SCAC4 |
| 6161 | AIBJ | AG INTERNATIONAL BROKERS INC | | | SCAC4 |
| 6162 | AIBK | ALL INDUSTRIAL BROKERS INC | | | SCAC3 |
| 6163 | AIBK | ALL INDUSTRIAL BROKERS INC | | | SCAC4 |
| 6164 | AIBL | ABM LOGISTICS | | | SCAC4 |
| 6165 | AIBQ | ALLINER INC | | | SCAC4 |
| 6166 | AIBT | AIDING THE HONORABLE TRUCKING INC | | | SCAC4 |
| 6167 | AIBU | AIRBUS SAS | | F | BIC |
| 6168 | AIC | Air India Limited | IATA: AI, Callsign: Air India, IATA Prefix: 098, | IND | AVCODES |
| 6169 | AIC | Air India Limited | IATA: AI | | ICAO1 |
| 6170 | AIC | Air India | | IND | TRAFFIC |
| 6171 | AICA | AIR CARTAGE ASSOCIATES INC | | | SCAC3 |
| 6172 | AICA | AMERICA TRANSPORT | | | SCAC4 |
| 6173 | AICB | ARCTIC BREEZE SHIPPING LIMITED | | | SCAC4 |
| 6174 | AICD | AIR CARGO DISPATCH | | | SCAC3 |
| 6175 | AICD | ACME FREIGHT BROKERS | | | SCAC4 |
| 6176 | AICF | ACME INTER-CITY FREIGHT LINES | | | SCAC3 |
| 6177 | AICG | AIR COURIER INTERNATIONAL INC | | | SCAC3 |
| 6178 | AICH | AIRGAS SPECIALTY PRODUCTS INC | | | SCAC4 |
| 6179 | AICI | AMERICAN INDUSTRIAL CARRIERS INC. | | | SCAC3 |
| 6180 | AICJ | AIR CARGO SERVICES INC | | | SCAC3 |
| 6181 | AICJ | ARTIC INC | | | SCAC4 |
| 6182 | AICK | ACT INC | | | SCAC3 |
| 6183 | AICK | AIR CARE G0 INC | | | SCAC4 |
| 6184 | AICL | AIR CHOICE ONE | | | SCAC4 |
| 6185 | AICM | ATLANTIC COAST MOVERS INC | | | SCAC4 |
| 6186 | AICN | AIR COURIERS | | | SCAC3 |
| 6187 | AICN | ALASKA REEFER MANAGEMENT | | | SCAC4 |
| 6188 | AICO | AIRCONDOR INC | | | SCAC3 |
| 6189 | AICP | AIR CARGO TRANSPORTATION, INC | | | SCAC3 |
| 6190 | AICP | AMERICAIR CORPORATION | | | SCAC4 |
| 6191 | AICQ | ACME INTER-CITY | | | SCAC3 |
| 6192 | AICQ | ATLANTIC CONNECTION INC, THE | | | SCAC4 |
| 6193 | AICS | AIR CARGO SERVICE | | | SCAC3 |
| 6194 | AICS | ARTESIAN ICE & COLD STORAGE CO INC | | | SCAC4 |
| 6195 | AICT | AIR LAND EXPRESS DISPATCH & COLLECT | | | SCAC4 |
| 6196 | AICU | ALLIED CONTAINER LINE PTE LTD | | SGP | BIC |
| 6197 | AICU | FERROVIE | | | SCAC3 |
| 6198 | AICU | A-ONE (A-1) CONTAINER INTERNATIONAL | | | SCAC4 |
| 6199 | AICV | AIRCO TRANSPORTATION INC | | | SCAC3 |
| 6200 | AICV | AUTO INTENSIVE CARE | | | SCAC4 |
