| 11701 | BTOE | BEST ON TIME TRUCKING CORP | | | SCAC4 |
| 11702 | BTOF | BETTS TRANSPORTATION INC | | | SCAC4 |
| 11703 | BTOG | BULLOCK TOWING INC | | | SCAC3 |
| 11704 | BTOH | BALTRANS OCEAN INC | | | SCAC4 |
| 11705 | BTOI | BEST TRANSPORTATION OF ST LOUIS | | | SCAC4 |
| 11706 | BTOJ | BAHIA TRANSPORTATION LLC | | | SCAC4 |
| 11707 | BTOK | BARTLETT TOURS | | | SCAC3 |
| 11708 | BTOK | BOTANAS TOKITOS | | | SCAC4 |
| 11709 | BTOM | BULK TRANSPORT INC | | | SCAC3 |
| 11710 | BTOM | BULK TRANSPORT COMPANY | | | SCAC4 |
| 11711 | BTON | BENTON TRANSPORT | | | SCAC4 |
| 11712 | BTOP | BENNETT TRACTOR PARTS | | | SCAC3 |
| 11713 | BTOQ | B & T TRANSPORTS | | | SCAC3 |
| 11714 | BTOR | BRITE TRANSPORT SYSTEM, INC | | | SCAC3 |
| 11715 | BTOT | BOONTON TRANSPORT | | | SCAC3 |
| 11716 | BTOT | BURNS, TROY HARVESTING INC | | | SCAC4 |
| 11717 | BTOW | BARSTOW, R C, TRUCKING CO, INC | | | SCAC3 |
| 11718 | BTOW | BORDER TOWN SA DE CV | | | SCAC4 |
| 11719 | BTOY | BROWN, TONY TRUCKING INC | | | SCAC3 |
| 11720 | BTOY | BIG TOYS | | | SCAC4 |
| 11721 | BTP | Veritair Ltd. | Callsign: Net Rail, Merged into British International Helicopters. | GB | AVCODES |
| 11722 | BTP | Kingcrete Associates Pvt. Ltd. | Callsign: Bahria Town, | PK | AVCODES |
| 11723 | BTP | Veritair Ltd | | | ICAO1 |
| 11724 | BTPA | BTI TRANSPORTATION INC | | | SCAC3 |
| 11725 | BTPB | BROWN TRANSPORTATION SOLUTIONS INC | | | SCAC4 |
| 11726 | BTPC | BEER TRANSPORTATION COMPANY | | | SCAC3 |
| 11727 | BTPD | BEI TRANSPORT CANADA INC | | | SCAC4 |
| 11728 | BTPE | BAUTISTA PEDRAZA, INDALEICIO | | | SCAC4 |
| 11729 | BTPF | BRENNTAG PACIFIC INC | | | SCAC4 |
| 11730 | BTPG | BELLE SPRINGS TRANSPORT INC | | | SCAC4 |
| 11731 | BTPH | BUTCH THOMPSON ENTERPRISES INC | | | SCAC4 |
| 11732 | BTPI | BTS INC | | | SCAC3 |
| 11733 | BTPJ | BURKEY TRANSPORT | | | SCAC3 |
| 11734 | BTPK | BAG TEX PACKAGING INC | | | SCAC4 |
| 11735 | BTPN | BLANCHETTE TRANSPORT INC | | | SCAC4 |
| 11736 | BTPO | BOB'S TRANSPORT & STORAGE CO., INC. | | | SCAC3 |
| 11737 | BTPO | BOBS TRANSPORT & STORAGE CO INC | | | SCAC4 |
| 11738 | BTPQ | BEST TRANSPORT COMPANY INC | | | SCAC3 |
| 11739 | BTPQ | BOGAR TRUCK PARTS & SERVICE | | | SCAC4 |
| 11740 | BTPS | BREADNER TRANSPORTS LTD | | | SCAC3 |
| 11741 | BTPV | BLAKE TRANSPORTATION SERVICES INC | | | SCAC4 |
| 11742 | BTPW | BIG TWO PRODUCTIONS | | | SCAC4 |
| 11743 | BTPY | BROCKS TRANSPORTATION INC | | | SCAC3 |
| 11744 | BTQ | Boutique Air, Inc. | IATA: 4B, Callsign: Boutique, Name changed from MC Aviation Corp d/b/a Boutique Air, Inc. | USA | AVCODES |
| 11745 | BTQA | BARTLETT TRANSPORTATION | | | SCAC3 |
| 11746 | BTQB | BROSH TRANSPORTATION | | | SCAC3 |
| 11747 | BTQC | B T Q CARTAGE COMPANY INC | | | SCAC3 |
| 11748 | BTQD | BOSIK TECHNOLOGIES LTD | | | SCAC4 |
| 11749 | BTQH | BATAN SHIPPING LTD. | | | SCAC3 |
| 11750 | BTQI | B-T INC | | | SCAC3 |
| 11751 | BTQI | B-T INC | | | SCAC4 |
| 11752 | BTQJ | BEELIADA TRANSPORTATION LLC | | | SCAC4 |
| 11753 | BTQK | BULLS TANKREDERI A S | | | SCAC3 |
| 11754 | BTQL | BLUE TAR LOGISTICS LLC | | | SCAC4 |
| 11755 | BTQM | BRITTON TRUCKING | | | SCAC3 |
| 11756 | BTQN | B T N EXPRESS INC | | | SCAC3 |
| 11757 | BTQO | BTI | | | SCAC3 |
| 11758 | BTQP | B T TRANSPORT | | | SCAC3 |
| 11759 | BTQP | BENAMOR TRADING CORP | | | SCAC4 |
| 11760 | BTQQ | BAILESS TRUCKING INC | | | SCAC4 |
| 11761 | BTQS | BTS EXPRESS INC | | | SCAC4 |
| 11762 | BTQT | B & T TRUCKING | | | SCAC3 |
| 11763 | BTQT | B T S ABBOTSFORD B C (TRANSPORT) | | | SCAC4 |
| 11764 | BTQW | BALTIC TRADING LIMITED | | | SCAC4 |
| 11765 | BTQY | BASE TRANSPORT ONTARIO LTD | | | SCAC4 |
| 11766 | BTR | Botir Avia | IATA: B8, Callsign: Botir-Avia, Ceased operations. | KS | AVCODES |
| 11767 | BTR | Botir-Avia | | | ICAO1 |
| 11768 | BTR | BUSH TERMINAL RAILROAD CO. | | | PWRC |
| 11769 | BTR | BOUNDARY TRAIL RAILWAY COMPANY INC | | | SCAC4 |
| 11770 | BTRA | B TRANSFER INC | | | SCAC4 |
| 11771 | BTRC | BROWN TRANSFER COMPANY, THE | | | SCAC3 |
| 11772 | BTRC | BOSLEY TOWING RECOVERY | | | SCAC4 |
| 11773 | BTRD | BUTLER REFRIGERATED DELIVERY INC | | | SCAC3 |
| 11774 | BTRD | BATON ROUGE WATER | | | SCAC4 |
| 11775 | BTRF | BOTELLO ROQUE, FELICITAS | | | SCAC4 |
| 11776 | BTRG | BELL TRUCKING COMPANY | | | SCAC3 |
| 11777 | BTRH | BUTTERWORTH & SONS | | | SCAC3 |
| 11778 | BTRH | BATES, RALPH | | | SCAC4 |
| 11779 | BTRI | BRAUNSTEIN TRUCKING CO | | | SCAC3 |
| 11780 | BTRI | BILLMAN TRUCKING INC | | | SCAC4 |
| 11781 | BTRJ | BUE TRANSFER | | | SCAC3 |
| 11782 | BTRM | BREWER TRUCKING | | | SCAC3 |
| 11783 | BTRM | BROSTROM TANKERS S A S | | | SCAC4 |
| 11784 | BTRO | BETTER ROUTE TRANSPORTATION SYSTEMS | | | SCAC4 |
| 11785 | BTRP | BASS TRANSPORTATION CO | | | SCAC3 |
| 11786 | BTRR | B & T TRANSPORTATION | | | SCAC3 |
| 11787 | BTRR | BELL, T R TRUCKING | | | SCAC4 |
| 11788 | BTRS | BARAJAS TRUCKING | | | SCAC4 |
| 11789 | BTRT | BOATNERS TRUCKING CO INC | | | SCAC3 |
| 11790 | BTRU | LLC BOTRANS | | | SCAC4 |
| 11791 | BTRX | Rocky Mountain Transportation Services | 7/2000-7/2005 | | NAKINA |
| 11792 | BTRX | Rocky Mountain Transportation Services | Jul-00 | | NRHS |
| 11793 | BTRX | ROCKY MOUNTAIN TRANSPORTATION SERVICES | | | PWRC |
| 11794 | BTRX | ROCKY MOUNTAIN TRANSPORTATION SERVICES | | | PWRC |
| 11795 | BTRX | Rocky Mountain Transportation Services (Inspiration Holdings) | | | RSRV |
| 11796 | BTRX | ROCKY MOUNTAIN TRANSPORTATION SERVI | | | SCAC4 |
| 11797 | BTRY | BAYFIELD TRANSFER RWY | | | PWRC |
| 11798 | BTRY | BEELER TRUCKING | | | SCAC3 |
| 11799 | BTS | Techaviaservice | Callsign: Techservice, | BY | AVCODES |
| 11800 | BTS | Aerolineas Nacionales Albatros, S.A. de C.V. | Callsign: Aerolines Albatros, | MEX | AVCODES |
