| 1901 | BCLR | Bay Colony R.R. Corp. | added 10/82; 1/94-7/2000 | | NRHS |
| 1902 | BCLR | BAY COLONY RAILROAD CORP. | | | PWRC |
| 1903 | BCLR | BAY COLONY RAILROAD | | | PWRC |
| 1904 | BCLR | Bay Colony Railroad | | | RSRV |
| 1905 | BCLR | BAY COLONY RAILROAD CORPORATION | | | SCAC3 |
| 1906 | BCLR | Bay Colony R.R. Corp. | | USA | TRAFFIC |
| 1907 | BCLS | BOURGEOIS, CHARLES L & SONS TRUCKIN | | | SCAC4 |
| 1908 | BCLT | BULK CARRIERS COMPANY LIMITED | | | SCAC3 |
| 1909 | BCLT | BULK CARRIERS COMPANY LIMITED | | | SCAC4 |
| 1910 | BCLU | BERMUDA CONTAINER LINE LTD | | BM | BIC |
| 1911 | BCLU | BIBBY BROS CO. | | | PWRC |
| 1912 | BCLU | BIBBY BROS COMPANY | | | PWRC |
| 1913 | BCLU | Bibby Bros. | | | RSRV |
| 1914 | BCLU | BERMUDA CONTAINER LINE | | | SCAC3 |
| 1915 | BCLU | BERMUDA CONTAINER LINE LTD | | | SCAC4 |
| 1916 | BCLW | BACCARAT LIMOUSINE | | | SCAC3 |
| 1917 | BCLW | BAKERS CORNER LOGISTICS LLC | | | SCAC4 |
| 1918 | BCLY | BARCLAY, DONALD P | | | SCAC3 |
| 1919 | BCLY | BRADON CONSTRUCTION LTD | | | SCAC4 |
| 1920 | BCM | BCM Airlines, S.A. | IATA: TY, Callsign: BCM Airlines, Designator TY* recalled by IATA | E | AVCODES |
| 1921 | BCMA | BECKMAN TRANSPORT | | | SCAC3 |
| 1922 | BCMA | BURCHETT MARINE INC | | | SCAC4 |
| 1923 | BCMC | BAUCOM, CHARLIE | | | SCAC3 |
| 1924 | BCMC | BRILLIANCE MARITIME INC | | | SCAC4 |
| 1925 | BCMF | BEACON MOTOR FREIGHT INC | | | SCAC3 |
| 1926 | BCMG | BEAUMONT MOVING & STORAGE | | | SCAC3 |
| 1927 | BCMH | BROWN, C M TRANSPORTATION INC | | | SCAC3 |
| 1928 | BCMI | B C M INC | | | SCAC3 |
| 1929 | BCMI | BELCAM INC | | | SCAC4 |
| 1930 | BCMK | BERTRAM TRUCKING INC | | | SCAC4 |
| 1931 | BCML | BRAYTON CHEMICALS INC | | | SCAC3 |
| 1932 | BCMM | BACHMANS INC | | | SCAC3 |
| 1933 | BCMM | BACHMA | | | SCAC4 |
| 1934 | BCMN | BACHMAN, LYLE A | | | SCAC3 |
| 1935 | BCMO | BIG CITY MOVING AND STORAGE | | | SCAC4 |
| 1936 | BCMP | BLANCO COMPANIA ARMADORA S A | | | SCAC3 |
| 1937 | BCMQ | BRUNSBACK COAL & MATERIAL INC | | | SCAC3 |
| 1938 | BCMQ | BC MANUFACTURING S DE RL DE | | | SCAC4 |
| 1939 | BCMR | BARCLAY-MOORE INC | | | SCAC3 |
| 1940 | BCMS | BRUCE MOVING & STORAGE INC | | | SCAC3 |
| 1941 | BCMS | B & C MARATHON TRANSPORTATION | | | SCAC4 |
| 1942 | BCMU | BRISTOL CITY LINE LTD. | | | SCAC3 |
| 1943 | BCMU | ALMACENE | | | SCAC4 |
| 1944 | BCMV | BEACONS MOVING & STORAGE COMPANY | | | SCAC3 |
| 1945 | BCMX | Bullet Concrete Materials Co. | added 5/1983; eliminated 10/1987; 1/1994-7/2005 (not listed) | | NAKINA |
| 1946 | BCMX | Bullet Concrete Materials Co. | added 5/83; eliminated 10/87; 1/94-7/2000 | | NRHS |
| 1947 | BCMX | BULLET CONCRETE MATERIALS CO. | | | PWRC |
| 1948 | BCMX | Bullet Concrete Materials | | | RSRV |
| 1949 | BCMX | BULLION CREEK MATERIALS MANAGEMENT | | | SCAC4 |
| 1950 | BCMZ | BRUSHY CREEK MINE | | | PWRC |
| 1951 | BCN | Ocean Air | Callsign: Blue Ocean, | RIM | AVCODES |
| 1952 | BCN | Ocean Air | | | ICAO1 |
| 1953 | BCNA | BURTON, CHARLES & ASSOCIATES INC | | | SCAC3 |
| 1954 | BCNB | BROADLEAF CONTRACTING INC | | | SCAC4 |
| 1955 | BCNE | Canadian National Rys. | added 7/1983; 1/1994-7/2005 | | NAKINA |
| 1956 | BCNE | Canadian National Ry.s | 1/94-7/2000 | | NRHS |
| 1957 | BCNE | CANADIAN NATIONAL RWY. | | | PWRC |
| 1958 | BCNE | British Columbia Railway (Canadian National Railway) | | | RSRV |
| 1959 | BCNG | BC TRUCKING CO | | | SCAC3 |
| 1960 | BCNH | BEACON HILL TRANSPORTATION INC | | | SCAC4 |
| 1961 | BCNI | BCN TRANSPORT COMPANY INC | | | SCAC3 |
| 1962 | BCNJ | BUELL, C & J LTD | | | SCAC3 |
| 1963 | BCNK | BRYCE, N K TRUCKING | | | SCAC3 |
| 1964 | BCNL | BUCHANAN LOGISTICS INC | | | SCAC4 |
| 1965 | BCNN | BUS CONNECTION INC | | | SCAC3 |
| 1966 | BCNO | BERKSHIRE COAL & OIL COMPANY INC | | | SCAC3 |
| 1967 | BCNP | B & C TRANSPORT | | | SCAC3 |
| 1968 | BCNQ | BATES, C N DRAYAGE INC | | | SCAC3 |
| 1969 | BCNQ | B C H UNIQUE INC | | | SCAC4 |
| 1970 | BCNS | BURNETT CONSTRUCTION CO | | | SCAC3 |
| 1971 | BCNT | BEACON TRANSPORT LLC | | | SCAC4 |
| 1972 | BCNU | BNS CONTAINER AS | | N | BIC |
| 1973 | BCNU | BNS CONSENT NORGE AS | | | SCAC4 |
| 1974 | BCNV | BOLERO COMPANIA NAVIERA SA | | | SCAC3 |
| 1975 | BCNX | Beacon Oil Co. | 8/1920-7/1923 | | NAKINA |
| 1976 | BCNX | BEACON OIL CO. | | | PWRC |
| 1977 | BCNY | BLAIR COUNTY OIL & SUPPLY INC | | | SCAC3 |
| 1978 | BCNY | BLAIR COUNTY OIL & SUPPLY INC | | | SCAC4 |
| 1979 | BCOA | BUS CHARTER OF AMERICA | | | SCAC3 |
| 1980 | BCOB | BOCO TRANSPORT, INC | | | SCAC3 |
| 1981 | BCOB | BOCO INC | | | SCAC4 |
| 1982 | BCOC | BEDFORD COUNTY OIL CO INC | | | SCAC4 |
| 1983 | BCOD | BALTIC COMMODORE SHIPPING LIMITED | | | SCAC4 |
| 1984 | BCOE | BARRY COUNTY EXPRESS | | | SCAC3 |
| 1985 | BCOE | BARRY COUNTY EXPRESS | | | SCAC4 |
| 1986 | BCOF | BIG CZECH OIL FUEL & RE-TIRE-MENT C | | | SCAC4 |
| 1987 | BCOG | BCO LEASING (DIV OF BARRIS CO) | | | SCAC3 |
| 1988 | BCOG | BC LOGISTICS LLC | | | SCAC4 |
| 1989 | BCOI | BERRY, CARL OIL COMPANY | | | SCAC3 |
| 1990 | BCOJ | BHREAC CORPORATION | | | SCAC4 |
| 1991 | BCOK | BLAIR&COOK TRANSPORTATION | | | SCAC3 |
| 1992 | BCOK | BULLOCK, BILL | | | SCAC4 |
| 1993 | BCOL | Canadian National Railways | added 7/2005; 7/2005 | | NAKINA |
| 1994 | BCOL | British Columbia Ry. Co. | 1/1975-1/1980; eliminated 10/1984 | | NAKINA |
| 1995 | BCOL | BC Rail Ltd. | added 10/1984; 1/1994-7/2000; eliminated 7/2005 | | NAKINA |
| 1996 | BCOL | British Columbia Ry. Co. | 1/75-1/80; eliminated 10/84 | | NRHS |
| 1997 | BCOL | BC Rail Ltd. | added 10/84; 1/94-7/2000 | | NRHS |
| 1998 | BCOL | CANADIAN NATIONAL RAILWAYS [BC RAIL LTD.] | | | PWRC |
| 1999 | BCOL | British Columbia Railway (Canadian National Railway) | | | RSRV |
| 2000 | BCOL | B C RAIL | | | SCAC3 |
