| 1 | SFL | Southflight Aviation Ltd. | Callsign: Southflight, | NZ | AVCODES |
| 2 | SFL | Southflight Aviation | | | ICAO1 |
| 3 | SFLC | Atchison, Topeka & Santa Fe Ry. Co. | added 7/1977; 1/1980-1/1994; eliminated 7/1997 | | NAKINA |
| 4 | SFLC | Burlington Northern Santa Fe Ry. Co. | added 7/1997; 7/2000; eliminated 4/2005 | | NAKINA |
| 5 | SFLC | BNSF Ry. Co. | added 4/2005; 7/2005 | | NAKINA |
| 6 | SFLC | Atchison, Topeka & Santa Fe Ry. Co. | added 7/77; 1/80-1/94; eliminated 7/97 | | NRHS |
| 7 | SFLC | Burlington Northern Santa Fe Ry. Co. | added 7/97; 7/2000 | | NRHS |
| 8 | SFLC | BNSF RAILWAY [BURLINGTON NORTHERN & SANTA FE RWY; ATCHISON, TOPEKA & SANTA FE] | | | PWRC |
| 9 | SFLC | Atchison, Topeka and Santa Fe Railway (BNSF Railway) | | | RSRV |
| 10 | SFLF | STANFILL ENTERPRISES CO INC | | | SCAC4 |
| 11 | SFLG | SOUTHERN FREIGHT LOGISTICS LLC | | | SCAC4 |
| 12 | SFLJ | SERVI-FLETES | | | SCAC4 |
| 13 | SFLL | SAFBANK LINE LTD | | | SCAC1 |
| 14 | SFLL | SCHAFFER LOADERS LTD | | | SCAC4 |
| 15 | SFLM | SAFE LINK TRANSPORTATION COMPANY | | | SCAC4 |
| 16 | SFLP | SEMFUEL TRANSPORT LLC | | | SCAC4 |
| 17 | SFLQ | SEAWAY FREIGHT LINES, INC | | | SCAC1 |
| 18 | SFLQ | COLEMAN AMERICAN MOVING SERVICES OF | | | SCAC4 |
| 19 | SFLR | The Shore Fast Line, Inc. | added 10/1985; eliminated 7/1992; 1/1994-7/2000 | | NAKINA |
| 20 | SFLR | The Shore Fast Line, Inc. | eliminated 7/92; 1/94-7/2000 | | NRHS |
| 21 | SFLR | RETIRED 03-02-92 ATP (0255) [SHORE FAST LINE INC.] | | | PWRC |
| 22 | SFLR | Shore Fast Line Railroad | | | RSRV |
| 23 | SFLR | SEAFLARE NAVIGATION COMPANY LIMITED | | | SCAC4 |
| 24 | SFLR | The Shore Fast Line, Inc. | | USA | TRAFFIC |
| 25 | SFLS | SIFUENTES AGUILAR, SANTOS MARCIAL | | | SCAC4 |
| 26 | SFLT | STAR FLEET TRUCKING INC | | | SCAC4 |
| 27 | SFLU | SEAFAST LOGISTICS PLC | | | SCAC4 |
| 28 | SFLW | SUNSTONE FUELS LLC | | | SCAC4 |
| 29 | SFLX | SOUTHERN FREIGHT LOGISTICS, INC. | | | PWRC |
| 30 | SFLY | STOLTZFUS FEED & SUPPLY INC | | | SCAC4 |
