| 1 | BR | EVA Airways Corporation | ICAO: EVA, Callsign: Eva, IATA Prefix: 695, | RC | AVCODES |
| 2 | BR | British Caledonian Airways Limited | ICAO: BCA, Callsign: Caledonian, Merged into British Airways BA/BAW. Name changed from Caledonian - British United Airways Ltd. | GB | AVCODES |
| 3 | BR | British United Airways Ltd. | Callsign: British United, Name changed to Caledonian - British United Airways Ltd. | GB | AVCODES |
| 4 | BR | Buffalo & Pittsburgh Rd., Inc. | 7/2005 | | NAKINA |
| 5 | BR | Bradford Industrial Rail, Inc. | added 7/1993; 1/1994-7/2000; eliminated 4/2004 | | NAKINA |
| 6 | BR | Bradford Industrial Rail, Inc. | added 7/93; 1/94-7/2000 | | NRHS |
| 7 | BR | *BRADFORD INDUSTRIAL RAIL, INC. | | | PWRC |
| 8 | BR | +BUFFALO & PITTSBURGH RAILROAD, INC. | | | PWRC |
| 9 | BR | Bradford Industrial Rail | | | RSRV |
| 10 | BR | British Rail | 2000: 16652 km standard gauge, 3136 km electrified at 25kV 50Hz and 1393 km at 750V= 3rd rail | GB | TRAFFIC |
| 11 | BR | Bayernhafen Gruppe | | DE | VKM |
| 12 | BR&P | Baltimore & Ohio R.R. | 4/1938-1/1946 | | NAKINA |
| 13 | BR&P | Buffalo, Rochester & Pittsburgh Ry. Co. (Baltimore & Ohio R.R.) | 7/1932-7/1936 | | NAKINA |
| 14 | BR&P | Buffalo, Rochester & Pittsburgh Ry. Co. | 8/1920-7/1930 | | NAKINA |
| 15 | BR&P | Buffalo, Rochester & Pittsburgh Ry. Co. | 23-Jul | | NRHS |
| 16 | BR&P | Baltimore & Ohio R.R. | Apr-38 | | NRHS |
| 17 | BR&P | BALTIMORE & OHIO RAILROAD [BUFFALO, ROCHESTER & PITTSBURGH RWY. CO.] | | | PWRC |
| 18 | BRA | Braathens ASA | IATA: BU, Callsign: Braathens, IATA Prefix: 154, ICAO callsign changed to Scanor. Formerly Braathens South American and Far East Airtransport A/S | N | AVCODES |
| 19 | BRA | Braathens South American and Far East Air Transport | IATA: BU, IATA Prefix: 154, | N | AVCODES |
| 20 | BRA | Braathens ASA | IATA: BU, Callsign: Scanor, IATA Prefix: 154, ICAO callsign changed from Braathens. ICAO designator changed to CNO. Formerly Braathens South American and Far East Airtransport A/S | N | AVCODES |
| 21 | BRA | | City: Brandenburg | D | TRAFFIC |
| 22 | BRAA | BRASHEAR TRUCKING CO INC | | | SCAC3 |
| 23 | BRAA | BRUBEX ENTERPRISES INC | | | SCAC4 |
| 24 | BRACH | Reiner Brach GmbH&Co. KG | | DE | VKM |
| 25 | BRAD | BRADLEYS EXPRESS INCORPORATED | | | SCAC3 |
| 26 | BRAD | BRADEN TRUCKING | | | SCAC4 |
| 27 | BRADCY | Bradford City Transport | | GB | TRAFFIC |
| 28 | BRADO | Brado Logística | | BR | TRAFFIC |
| 29 | BRAE | BRANDT, E I | | | SCAC3 |
| 30 | BRAE | BEL INTERNATIONAL LOGISTICS LTD | | | SCAC4 |
| 31 | BRAF | BRADNER FARMS | | | SCAC4 |
| 32 | BRAG | BRAUNS EXPRESS | | | SCAC3 |
| 33 | BRAH | BRACHT TRANSPORTATION CO | | | SCAC3 |
| 34 | BRAI | BRAR | | | SCAC4 |
| 35 | BRAI | S.C.Braicar S.A. | City: Braila | RO | TRAFFIC |
| 36 | BRAK | BEST RAIDER CARGO EXPRESS LTD | | | SCAC4 |
| 37 | BRAL | BRAND TRUCKING CO, INC | | | SCAC3 |
| 38 | BRAL | BRAL CORPORATION | | | SCAC4 |
| 39 | BRAM | BRADY MOTORFRATE INC | | | PWRC |
| 40 | BRAM | BRACAMONTE, GARY TRANSPORT SERVICE | | | SCAC3 |
| 41 | BRAMP | Brampton Transit | | CDN | TRAFFIC |
| 42 | BRAN | Brandon Railroad, LLC | added 7/2007 | | NAKINA |
| 43 | BRAN | Brandon Corp. | added 7/1978; 1/1980-7/2005; eliminated 7/2007 | | NAKINA |
| 44 | BRAN | Brandon Corp. | added 7/78; 1/80-7/2000 | | NRHS |
| 45 | BRAN | BRANDON RAILROAD, LLC | | | PWRC |
| 46 | BRAN | Brandon Corporation | | | RSRV |
| 47 | BRAN | BRANDON CORPORATION | | | SCAC3 |
| 48 | BRAND | Brandon Transit | | CDN | TRAFFIC |
| 49 | BRANT | Brantford Transit | | CDN | TRAFFIC |
| 50 | BRAP | BRODA SEATING | | | SCAC4 |
| 51 | BRAQ | BAR TRANS INC | | | SCAC4 |
| 52 | BRAR | BROCK SOLUTIONS INC | | | SCAC4 |
| 53 | BRAS | BRONCO MOVING & STORAGE INC | | | SCAC3 |
| 54 | BRAS | Regia Autonomă de Transport Brașov | City: Brașov | RO | TRAFFIC |
| 55 | BRASA | | | BR | TRAFFIC |
| 56 | BRAT | BRADFORD TRUCK SERVICE | | | SCAC3 |
| 57 | BRAT | Brandtford Transit | | CDN | TRAFFIC |
| 58 | BRAU | BRASTEINER 2000 COMERCIO E LOCACAO | | | SCAC4 |
| 59 | BRAUN | Emeran Braun Bahnbau und Maschinen GmbH | | DE | VKM |
| 60 | BRAV | BROCKS AUTO PARTS INC | | | SCAC3 |
| 61 | BRAV | BROCKS AUTO PARTS INC | | | SCAC4 |
| 62 | BRAW | BARNHART, WILLIAM TRUCKING CO INC | | | SCAC3 |
| 63 | BRAX | General American Marks Co. | added 10/2005 | | NAKINA |
| 64 | BRAX | The CIT Group/Capital Finance, Inc. | added 4/1999; 7/2000-7/2005; eliminated 10/2005 | | NAKINA |
| 65 | BRAX | General Electric Railcar Services Corp. | added 1/1990; 1/1994; eliminated 4/1999 | | NAKINA |
| 66 | BRAX | Brae Transportation Inc., a subsidiary of Brae Corp. | added 7/1984; eliminated 1/1990 | | NAKINA |
| 67 | BRAX | Brae Corp. | 1/1980; added 10/1980; eliminated 7/1984 | | NAKINA |
| 68 | BRAX | Brae Corp. | 1/80; added 10/80; eliminated 7/84 | | NRHS |
| 69 | BRAX | Brae Transportation Inc., a subsidiary of Brae Corp. | added 7/84; eliminated 1/90 | | NRHS |
| 70 | BRAX | General Electric Railcar Services Corp. | added 1/90; 1/94; eliminated 4/99 | | NRHS |
| 71 | BRAX | The CIT Group/Capital Finance, Inc. | added 4/99; 7/2000 | | NRHS |
| 72 | BRAX | GENERAL AMERICAN MARKS CO. [BRAE TRANSPORTATION] | | | PWRC |
| 73 | BRAX | Brae Corporation (CIT Equipment Finance Corporation) | | | RSRV |
| 74 | BRAX | GENERAL AMERICAN MARKS COMPANY | | | SCAC4 |
| 75 | BRAY | BRAY TRUCKING & SON | | | SCAC3 |
| 76 | BRAZ | RETIRED 04-26-94 FXD | | | PWRC |
| 77 | BRB | BRA Transportes Aeroes Ltda | IATA: 7R, Callsign: Brasair, Founded in 1999. Ceased operations on 07 November 2007. Designator 7R recalled by IATA. | BR | AVCODES |
| 78 | BRB | BRA-Transportes Aereos | IATA: 7R | | ICAO1 |
| 79 | BRB | Bayerische Regiobahn GmbH | Augsburg (Veolia Verkehr) | D | privat-bahn.de |
| 80 | BRB | Bayerische RegioBahn | | D | TRAFFIC |
| 81 | BRB | Bayerische Regiobahn GmbH | | DE | VKM |
| 82 | BRBB | BRADBURY BROTHERS | | | SCAC3 |
| 83 | BRBB | BREAK BULK TRANSPORTATION INC | | | SCAC4 |
| 84 | BRBC | BRISTOL BAY CONTRACTORS INC | | | SCAC3 |
| 85 | BRBC | BRISTOL BAY CONTRACTORS INC | | | SCAC4 |
| 86 | BRBD | BROOKSIDE EQUIPMENT SALES INC | | | SCAC4 |
| 87 | BRBE | BLACK, ROBERT E | | | SCAC3 |
| 88 | BRBE | BLACK, ROBERT JR | | | SCAC4 |
| 89 | BRBF | BATON ROUGE CARGO SERVICE INC | | | SCAC4 |
| 90 | BRBG | BORDER BEVERAGES INC | | | SCAC3 |
| 91 | BRBH | BARNETT BROTHERS | | | SCAC3 |
| 92 | BRBI | BREWTON EXPRESS INC | | | SCAC3 |
| 93 | BRBJ | BRUGES, R TRANSPORT INC | | | SCAC4 |
| 94 | BRBL | B R B INTERNATIONAL LIMITED | | | SCAC3 |
| 95 | BRBN | BLUE RIBBON RELOCATION LLC | | | SCAC4 |
| 96 | BRBO | BRIDGEWATER BROS | | | SCAC3 |
| 97 | BRBP | BRINK, BOB, INCORPORATED | | | SCAC3 |
| 98 | BRBQ | BIG RED BROKERAGE INC | | | SCAC4 |
| 99 | BRBR | BRADLEY-BURTSCHI | | | SCAC3 |
| 100 | BRBT | BROWN BROTHERS TRUCK LINE | | | SCAC3 |
