| 1 | BAR | Bradley Air (Charter) Services Ltd. | Callsign: Bradley, | CDN | AVCODES |
| 2 | BAR | Abu Dhabi Aviation | Callsign: Barakah, | UAE | AVCODES |
| 3 | BAR | Bradly Air (Charter) Services | | | ICAO1 |
| 4 | BAR | Montreal, Maine and Atlantic Ry. Ltd. | added 7/2004; 7/2005 | | NAKINA |
| 5 | BAR | Bangor and Aroostook R.R. Co. | 8/1920-7/2000; eliminated 4/2002 | | NAKINA |
| 6 | BAR | Bangor and Aroostook R.R. Co. | 7/23-7/2000 | | NRHS |
| 7 | BAR | MONTREAL, MAINE & ATLANTIC RWY [BANGOR & AROOSTOOK RAILROAD] | | | PWRC |
| 8 | BAR | Bangor and Aroostook Railroad (Montreal, Maine and Atlantic Railway) | | | RSRV |
| 9 | BAR | Bangor & Aroostook | | USA | TRAFFIC |
| 10 | BARA | BARNETS EXPRESS, INC | | | SCAC3 |
| 11 | BARA | BARNETS EXPRESS, INC | | | SCAC4 |
| 12 | BARB | BARBER TRANSPORTATION CO | | | PWRC |
| 13 | BARB | BARE, ROBERT ASSOCIATES | | | SCAC4 |
| 14 | BARD | BAILEY, REGINALD D | | | SCAC3 |
| 15 | BARD | Bardos a.s. | | CZ | VKM |
| 16 | BARG | BARGE LINES INC, THE | | | SCAC3 |
| 17 | BARH | BARTHOLOMEW, MORRIS | | | SCAC4 |
| 18 | BARI | BARR TRUCKING CO | | | SCAC3 |
| 19 | BARI | BAR TRANSPORTATION INC | | | SCAC4 |
| 20 | BARJ | BARNETTS MOVING & STORAGE | | | SCAC3 |
| 21 | BARJ | BARNWOOD LOGISTICS INC | | | SCAC4 |
| 22 | BARK | BARKLEY TRUCK LINES | | | SCAC3 |
| 23 | BARK | BARKLEY TRUCK LINES | | | SCAC4 |
| 24 | BARL | BALTIC RORO LIMITED | | | SCAC3 |
| 25 | BARL | BARRERA ACOSTA, RAUL BENJAMIN | | | SCAC4 |
| 26 | BARM | BARNETS MILL ELEVATOR | | | SCAC3 |
| 27 | BARM | BARNETS MILL ELEVATOR | | | SCAC4 |
| 28 | BARN | BARLOW TRUCK LINES INC | | | SCAC3 |
| 29 | BARO | BARNETT TRUCKING INC | | | SCAC3 |
| 30 | BARO | BARNETT TRUCKING INC | | | SCAC4 |
| 31 | BARP | BARR TRANSPORT INC | | | SCAC4 |
| 32 | BARQ | BARNES, E C INC | | | SCAC4 |
| 33 | BARR | BARO, A CAR REMOVAL & TOWING CO | | | SCAC3 |
| 34 | BARR | BARGAIN RELOCATION INCORPORATED | | | SCAC4 |
| 35 | BARR | Boston & Albany Railroad | Real: BA | USA | TRAFFIC |
| 36 | BARS | BARSTOW TRUCKING | | | PWRC |
| 37 | BARS | BARSTOW TRUCKING | | | SCAC3 |
| 38 | BARS | BARSAN INTERNATIONAL INC | | | SCAC4 |
| 39 | BART | BAY AREA RAPID TRANSIT | | | PWRC |
| 40 | BART | B & R MOTOR EXPRESS INC | | | SCAC3 |
| 41 | BARU | BARBADOS BOTTLING CO.LTD | | BDS | BIC |
| 42 | BARU | BARONS LEASING CORP. | | | PWRC |
| 43 | BARU | Barons Leasing Corporation | | | RSRV |
| 44 | BARU | BARBER LINES A/S | | | SCAC3 |
| 45 | BARU | BARBADOS BOTTLING CO LTD | | | SCAC4 |
| 46 | BARV | BARNES, BILLY ENTERPRISES INC | | | SCAC3 |
| 47 | BARW | BARZOTTI WOODWORKING LTD | | | SCAC4 |
| 48 | BARX | RETIRED 03-04-91 FET | | | PWRC |
| 49 | BARY | BAR TRANSPORT | | | SCAC3 |
| 50 | BARZ | BANGOR & AROOSTOOK | | | PWRC |
| 51 | BARZ | Bangor and Aroostook Railroad (Montreal, Maine and Atlantic Railway) | | | RSRV |
| 52 | BARZ | MONTREAL, MAINE AND ATLANTIC RAILWA | | | SCAC4 |
