| 4001 | BFVN | BIG FIVE (5) TRUCKING INC | | | SCAC4 |
| 4002 | BFVT | B F V TANKLINES INC | | | SCAC4 |
| 4003 | BFW | Bahrain Defence Force | Callsign: Summan, | BRN | AVCODES |
| 4004 | BFW | Bahrain Defence Force | | | ICAO1 |
| 4005 | BFWC | BRADFORD-WHITE CORPORATION | | | SCAC3 |
| 4006 | BFWC | B & F TOWING CO | | | SCAC4 |
| 4007 | BFWD | BALTIC FORWARDING INC | | | SCAC3 |
| 4008 | BFWE | BUFFALO WELDING | | | SCAC4 |
| 4009 | BFWQ | BUFFALOW MOVING CO | | | SCAC3 |
| 4010 | BFX | Fly Alpha GmbH | Callsign: Bluefox, AOC merged into FAI Aviation Group Holding. | D | AVCODES |
| 4011 | BFX | Fly Away GmbH & Co. KG | Callsign: Blue Fox, | D | AVCODES |
| 4012 | BFX | Best Foods Division of Corn Products Co. | added 1/1959; eliminated 4/1960 | | NAKINA |
| 4013 | BFX | Crystal Car Line | added 4/1960; 4/1961-4/1970; eliminated 1/1967 | | NAKINA |
| 4014 | BFX | Best Foods, Inc. | 7/1932-10/1957; eliminated 1/1959 | | NAKINA |
| 4015 | BFX | Best Foods, Inc. | 4/38-10/57; eliminated 1/59 | | NRHS |
| 4016 | BFX | Best Foods Division of Corn Products Co. | added 1/59 | | NRHS |
| 4017 | BFX | Crystal Car Line | 4/61-4/70; eliminated 1/67 | | NRHS |
| 4018 | BFX | *BEST FOODS, INC. DIV. CORN PRODUCTS CO. | | | PWRC |
| 4019 | BFX | *CRYSTAL CAR LINE | | | PWRC |
| 4020 | BFXC | BAMFORD TRANSPORT INC | | | SCAC4 |
| 4021 | BFXE | BLU FEET EXPRESS | | | SCAC4 |
| 4022 | BFXI | BUFFALO EXPRESS INC | | | SCAC3 |
| 4023 | BFXI | BATTLEFIELD TRANSPORT INC | | | SCAC4 |
| 4024 | BFXP | BAREFOOT EXPRESS | | | SCAC4 |
| 4025 | BFXR | BASIC FREIGHT EXPRESS USA INC | | | SCAC4 |
| 4026 | BFXS | BRESNAN, F X SHIPPING INC | | | SCAC3 |
| 4027 | BFXS | BROOKFIELD TRANSPORTATION SERVICES | | | SCAC4 |
| 4028 | BFXT | B & F TRANSPORT | | | SCAC4 |
| 4029 | BFXU | BAJA FERRIES | | MEX | BIC |
| 4030 | BFY | Bremenfly GmbH | IATA: 8B, Callsign: Borgwardt, Airline handed back its aCO on 03 November 2010. | D | AVCODES |
| 4031 | BFY | Jogo Aviation N.V. dba Best fly Aircraft Management Aruba | Callsign: Mwango Best, | ARU | AVCODES |
| 4032 | BFZF | BENNETT FROZEN FREIGHT | | | SCAC4 |
| 4033 | BG | Biman Bangladesh Airlines | ICAO: BBC, Callsign: Bangladesh, IATA Prefix: 997, | BD | AVCODES |
| 4034 | BG | Guyana Airways Corp. | Callsign: Artair, ICAO callsign changed to Guyair | GUY | AVCODES |
| 4035 | BG | Guyana Airways Corp. | Callsign: Guyair, ICAO callsign changed from Artair | GUY | AVCODES |
| 4036 | BG | Bingham & Garfield Ry. | 4/1938-7/1954 | | NAKINA |
| 4037 | BG | Bingham & Garfield Ry. | 4/38-1/52 | | NRHS |
| 4038 | BG | BINGHAM & GARFIELD RWY. CO. | | | PWRC |
| 4039 | BGA | Airbus Transport International | IATA: 4Y, Callsign: Super Transport, Airbus Industrie's Bulga's | F | AVCODES |
| 4040 | BGA | Airbus Transport International | | | ICAO1 |
| 4041 | BGAA | BOC GASES | | | SCAC4 |
| 4042 | BGAD | BEAUREGARD, NORMAND | | | SCAC3 |
| 4043 | BGAE | B G TRUCKING INC | | | SCAC4 |
| 4044 | BGAF | Bulgarian Air Force | Real: AFB | BG | TRAFFIC |
| 4045 | BGAG | BIG A LEASING | | | SCAC3 |
| 4046 | BGAG | BENCHMARK DISTRIBUTION SERVICES | | | SCAC4 |
| 4047 | BGAI | BOLES GAS SALES INC | | | SCAC3 |
| 4048 | BGAK | BIGGERS TRUCKING INC | | | SCAC4 |
| 4049 | BGAL | BAILEY LEASING INCORPORATED | | | SCAC4 |
| 4050 | BGAM | BERGS AUTOMOTIVE CENTER INC | | | SCAC3 |
| 4051 | BGAM | BRUNDIDGE, AHMAD | | | SCAC4 |
| 4052 | BGAN | BREG INC | | | SCAC4 |
| 4053 | BGAO | BURSAW GAS & OIL INC | | | SCAC3 |
| 4054 | BGAO | BURSAW GAS & OIL INC | | | SCAC4 |
| 4055 | BGAP | BIG APPLE TRAVEL AGENCY LTD | | | SCAC3 |
| 4056 | BGAQ | BIG A TRANSPORTATION SERVICES INC | | | SCAC3 |
| 4057 | BGAQ | BERGER TRANSFER & STORAGE INC | | | SCAC4 |
| 4058 | BGAR | BIG A TRUCKING | | | SCAC3 |
| 4059 | BGAS | BERGMAN, E A & SON INC | | | SCAC3 |
| 4060 | BGAS | BONNY GAS TRANSPORT | | | SCAC4 |
| 4061 | BGAT | BEAUREGARD TRANS | | | SCAC3 |
| 4062 | BGAT | BIG APPLE TRANSPORT NY INC | | | SCAC4 |
| 4063 | BGAV | BARNETT, GEORGE TRUCKING | | | SCAC4 |
| 4064 | BGAW | BURNDRED, GORDON ANDREW | | | SCAC4 |
| 4065 | BGB | Bulgaria | Callsign: Air Bulgaria, | BG | AVCODES |
| 4066 | BGB | MK Airlines Ltd t/a British Global Airlines | Callsign: British Global, Ceased operations | GB | AVCODES |
| 4067 | BGB | Big Bend Community College | Callsign: Big Bend, | USA | AVCODES |
| 4068 | BGBA | BIG BOULEVARD TRANSPORT ARCO INC | | | SCAC3 |
| 4069 | BGBA | BRONX GLOBAL LOGISTICS | | | SCAC4 |
| 4070 | BGBB | BIG BEE TRANSPORT LLC | | | SCAC4 |
| 4071 | BGBC | BIGBEE TRANSPORTATION COMPANY | | | SCAC3 |
| 4072 | BGBD | BOBS GARAGE & BODY SHOP | | | SCAC3 |
| 4073 | BGBE | BIGBEE TRANSPORTATION INC | | | SCAC3 |
| 4074 | BGBF | BONTRAGER BROS FARMS | | | SCAC3 |
| 4075 | BGBG | BRIDGES & BRIDGES CHARTER & TRANSIT | | | SCAC3 |
| 4076 | BGBH | BG LIONS INTERNATIONAL | | | SCAC4 |
| 4077 | BGBK | BERGEN BULK CARRIERS A S | | | SCAC3 |
| 4078 | BGBL | BIGBALLS TRUCKING LLC | | | SCAC4 |
| 4079 | BGBM | BIG BEND MOVING & STORAGE | | | SCAC3 |
| 4080 | BGBM | BGB MOTORSPORTS LLC | | | SCAC4 |
| 4081 | BGBP | B G B TRANSPORT INC | | | SCAC3 |
| 4082 | BGBP | BIG M LOGISTICS INC | | | SCAC4 |
| 4083 | BGBQ | BGB | | | SCAC4 |
| 4084 | BGBR | BIG BEAR TRANSPORT | | | SCAC3 |
| 4085 | BGBR | BECLAWAT MANUFACTURING INC | | | SCAC4 |
| 4086 | BGBT | BIG B TRUCK LINES INC | | | SCAC3 |
| 4087 | BGBU | BERTSCHI AG | | CH | BIC |
| 4088 | BGBV | BGB EXPRESS | | | SCAC4 |
| 4089 | BGC | Good Jet Co., Ltd. | Callsign: Yandu, | PRC | AVCODES |
| 4090 | BGC | BUFFALO GAGE CO. | | | PWRC |
| 4091 | BGCA | BERGS CARTAGE & STORAGE CO LTD | | | SCAC3 |
| 4092 | BGCB | BERGER OHIO INC ( | | | SCAC4 |
| 4093 | BGCC | BIG CANDY TRUCKING | | | SCAC4 |
| 4094 | BGCD | BIG CHIEF DIST CO | | | SCAC4 |
| 4095 | BGCE | BIG CREEK EXPRESS INC | | | SCAC4 |
| 4096 | BGCF | BUDGET COURIER | | | SCAC4 |
| 4097 | BGCI | BRINGS CO INC | | | SCAC4 |
| 4098 | BGCJ | B & G CARRIERS LLC | | | SCAC4 |
| 4099 | BGCK | B G TRUCKING | | | SCAC3 |
| 4100 | BGCK | BLOOMSDALE LOGISTICS INC | | | SCAC4 |
