| 801 | BAWS | B & W TRANSFER & STORAGE | | | SCAC3 |
| 802 | BAWS | B & W TRANSFER & STORAGE | | | SCAC4 |
| 803 | BAWT | BAYWOOD TRANSPORT INC | | | SCAC3 |
| 804 | BAWX | The Babcock & Wilcox Co. | added 4/1969; 4/1970-7/2005 | | NAKINA |
| 805 | BAWX | The Babcock & Wilcox Co. | added 4/69; 4/70-7/2000 | | NRHS |
| 806 | BAWX | BABCOCK & WILCOX COMPANY | | | PWRC |
| 807 | BAWX | Babcock & Wilcox | | | RSRV |
| 808 | BAWX | BABCOCK & WILCOX COMPANY | | | SCAC4 |
| 809 | BAWY | BREAKAW | | | SCAC4 |
| 810 | BAX | Best Aero Handling Ltd | | RUS | AVCODES |
| 811 | BAX | Best Aero Handling Ltd | | | ICAO1 |
| 812 | BAX | General American Transportation Corp. | 1/1943 | | NAKINA |
| 813 | BAX | Barber Asphalt Corp. | 1/1941 | | NAKINA |
| 814 | BAX | The Barber Asphalt Co. | 7/1930-7/1935 | | NAKINA |
| 815 | BAX | The Barber Co., Inc. | 7/1937-4/1938 | | NAKINA |
| 816 | BAX | The Barber Co., Inc. | Apr-38 | | NRHS |
| 817 | BAX | *THE BARBER CO., INC. [BARBER ASPHALT CO.] | | | PWRC |
| 818 | BAX | *GENERAL AMERICAN TRANSPORTATION CORP. | | | PWRC |
| 819 | BAX | BAREXIM SRL | | RO | VKM |
| 820 | BAXA | BALDOR EXPRESS TRANSPORTATION CO LL | | | SCAC4 |
| 821 | BAXB | BALLINA TRANSPORT | | | SCAC4 |
| 822 | BAXC | BLAIR AMERICA INC | | | SCAC3 |
| 823 | BAXE | BAXTER TRUCKING CORP | | | SCAC3 |
| 824 | BAXE | BAXTER, G & E TRANSPORT LIMITED | | | SCAC4 |
| 825 | BAXG | BAX GLOBAL INC (N/K/A SCHENKER INC) | | | SCAC4 |
| 826 | BAXI | BLUE ARROW EXPRESS INC | | | SCAC3 |
| 827 | BAXI | BLUE ARROW EXPRESS INC | | | SCAC4 |
| 828 | BAXJ | BOGUNIA TRANSPORTATION LLC | | | SCAC4 |
| 829 | BAXM | BAXMAN GRAVEL COMPANY INC | | | SCAC3 |
| 830 | BAXM | BILLS AUTO TRANSPORT INC | | | SCAC4 |
| 831 | BAXO | BAXTER OIL TRANSPORT INC | | | SCAC3 |
| 832 | BAXO | BALTICA TRANSPORT LLC | | | SCAC4 |
| 833 | BAXP | BRIAR TRANSPORT | | | SCAC4 |
| 834 | BAXS | BAH EXPRESS INC | | | SCAC4 |
| 835 | BAXT | BAXTER TRANSPORT, INC | | | SCAC3 |
| 836 | BAXT | BAXTER, BERT TRANSPORT LTD | | | SCAC4 |
| 837 | BAXU | SUNMARINE SHIPPING SERVICES LLC | | UAE | BIC |
| 838 | BAXU | SUNMARINE SHIPPING SERVICES LLC | | | SCAC4 |
| 839 | BAXV | BERCHA TRANSPORT | | | SCAC4 |
| 840 | BAXW | BT AUTO TRANSPORT LLC | | | SCAC4 |
| 841 | BAXY | BAXLEY TRUCKING CO INC | | | SCAC3 |
| 842 | BAXY | BAU-XI GALLERY LTD | | | SCAC4 |
| 843 | BAY | Bayon Airlines | Callsign: Bayon, | K | AVCODES |
| 844 | BAY | Bravo Airways | | UA | AVCODES |
| 845 | BAY | Bayon Airlines | | | ICAO1 |
| 846 | BAY | Königlich Bayerische Staatseisenbahnen | | D | TRAFFIC |
| 847 | BAYA | BAY AREA-LOS ANGELES EXPRESS INC | | | SCAC3 |
| 848 | BAYB | BAYLES, ROBERT BAKER | | | SCAC3 |
| 849 | BAYB | BAY BROKERAGE INC | | | SCAC4 |
| 850 | BAYC | BAY CITIES EXPRESS AND TRANSFER CO | | | SCAC3 |
| 851 | BAYE | BAY TRANSPORTATION CORP | | | SCAC3 |
| 852 | BAYE | BAY TRANSPORT INC | | | SCAC4 |
| 853 | BAYER | Bayer Dormagen | | D | TRAFFIC |
| 854 | BAYER | Bayer CropScience Deutschland GmbH | | DE | VKM |
| 855 | BAYF | BAY FORWARDING INC | | | SCAC3 |
| 856 | BAYG | BAY GULF TRADING COMPANY LIMITED | | | SCAC4 |
| 857 | BAYI | BAY-MOR CORP | | | SCAC3 |
| 858 | BAYJ | BAY & BAY TRANSPORTATION SERVICES I | | | SCAC4 |
| 859 | BAYK | BAY CARTAGE CO INC | | | SCAC3 |
| 860 | BAYK | BAY SHIPPERS | | | SCAC4 |
| 861 | BAYL | The Bay Line R.R., L.L.C. | added 4/1994; 7/2000-7/2005 | | NAKINA |
| 862 | BAYL | The Bay Line R.R., L.L.C. | added 4/94; 7/2000 | | NRHS |
| 863 | BAYL | THE BAY LINE RAILROAD, LLC | | | PWRC |
| 864 | BAYL | Bay Line Railroad | | | RSRV |
| 865 | BAYL | BAY LINE RAILROAD L L C, THE | | | SCAC4 |
| 866 | BAYL | Bay Line | | USA | TRAFFIC |
| 867 | BAYM | BAY MOTOR EXPRESS INC | | | SCAC3 |
| 868 | BAYM | BAYMODAL | | | SCAC4 |
| 869 | BAYN | BAY AND BAY TRANSFER CO, INC | | | SCAC3 |
| 870 | BAYO | BAY AREA WAREHOUSE CO | | | SCAC3 |
| 871 | BAYO | BAY AREA WAREHOUSE CO | | | SCAC4 |
| 872 | BAYP | BAYS TRANSCORP INC | | | SCAC3 |
| 873 | BAYP | BAYNOV INC | | | SCAC4 |
| 874 | BAYQ | BAY TRANSPORTATION INC | | | SCAC4 |
| 875 | BAYR | BAY AREA RAPID DELIVERY | | | SCAC3 |
| 876 | BAYS | BAY STATE SMELTING CO INC | | | SCAC3 |
| 877 | BAYT | BAY STATE SHIPPERS | | | SCAC3 |
| 878 | BAYU | CHEMION LOGISTIK GMBH | | D | BIC |
| 879 | BAYU | MOBAY CHEMICAL CORP. | | | PWRC |
| 880 | BAYU | Mobay Chemical Corp (Chemion Logistik) | | | RSRV |
| 881 | BAYU | BAYER-AKTIENGESELLSCHAFT | | | SCAC3 |
| 882 | BAYU | BAYER AG | | | SCAC4 |
| 883 | BAYV | BAYSIDE VANS INC | | | SCAC3 |
| 884 | BAYVIEW | Bayview Bus Lines, NJ | | USA | TRAFFIC |
| 885 | BAYW | BAY WATER TRUCKING CO | | | SCAC4 |
| 886 | BAYX | Union Tank Car Co. | added 7/1983; 1/1994 | | NAKINA |
| 887 | BAYX | Bayer Corp. | added 4/1996; 7/2000-7/2005; eliminated 1/2010 | | NAKINA |
| 888 | BAYX | Bay Chemical Co., Division of Morton Salt Co. | 1/1950-10/1957; eliminated 4/1958 | | NAKINA |
| 889 | BAYX | Morton Chemical Co. | added 4/1958; eliminated 1/1959 | | NAKINA |
| 890 | BAYX | Mobay Chemical Co. | added 7/1974; 1/1975; eliminated 1/1978 | | NAKINA |
| 891 | BAYX | Mobay Chemical Corp. | added 1/1978; 1/1980; eliminated 7/1983 | | NAKINA |
| 892 | BAYX | Bay Chemical Co., Division of Morton Salt Co. | 1/52-10/57 | | NRHS |
| 893 | BAYX | Morton Chemical Co. | eliminated 1/59 | | NRHS |
| 894 | BAYX | Mobay Chemical Co. | added 7/74; 1/75; eliminated 1/78 | | NRHS |
| 895 | BAYX | Mobay Chemical Corp. | added 1/78; 1/80 | | NRHS |
| 896 | BAYX | Union Tank Car Co. | Jan-94 | | NRHS |
| 897 | BAYX | Bayer Corp. | added 4/96; 7/2000 | | NRHS |
| 898 | BAYX | *MOBAY CHEMICAL CORP. [BAY CHEMICAL CO. DIV. MORTON SALT CO.; MORTON CHEMICAL CO.] | | | PWRC |
| 899 | BAYX | +BAYER CORPORATION [(UTCX) UNION TANK CAR CO] | | | PWRC |
| 900 | BAYX | Bayer Corporation | | | RSRV |
