| 1 | ASL | Spurling Aviation | Callsign: Air Seattle, | USA | AVCODES |
| 2 | ASL | JSC for Air Traffic-Air SERBIA Belgrade t/a Air Serbia a.d. Beograd | IATA: JU, Callsign: Air Serbia, IATA Prefix: 115, Name changed from Jat Airways. ICAO Designator changed from JAT. Name changed from Jugoslovenski Aerotransport (JAT) | SR | AVCODES |
| 3 | ASL | Spurling Aviation | | | ICAO1 |
| 4 | ASL | AMADOR STAGE LINES INC | | | SCAC4 |
| 5 | ASLA | ASL ATLANTIC SEAROUTE LIMITED | | | SCAC3 |
| 6 | ASLA | ASL ATLANTIC SEAROUTE LIMITED | | | SCAC4 |
| 7 | ASLB | ALL STAR LIMOUSINES | | | SCAC3 |
| 8 | ASLB | ACE RELOCATION SYSTEMS INC OF L B | | | SCAC4 |
| 9 | ASLC | AMERICAN SHORT LINE RAILROAD ASSOCI | | | SCAC3 |
| 10 | ASLD | APPLETON SHIPPING E N E | | | SCAC4 |
| 11 | ASLE | ALMOUR SALES INC | | | SCAC3 |
| 12 | ASLF | ACTIVE TRUCK SALES & PARTS INC | | | SCAC3 |
| 13 | ASLG | AMERICAN SHORT LINE RAILROAD ASSOCI | | | SCAC3 |
| 14 | ASLH | ADELSTEIN, SAM & CO LTD | | | SCAC3 |
| 15 | ASLH | ADELSTEIN, SAM & CO LIMITED | | | SCAC4 |
| 16 | ASLI | ASTRO TRUCK LINES INC | | | SCAC3 |
| 17 | ASLI | ATLANTA SHUTTLE LIMOUSINE SERVICE I | | | SCAC4 |
| 18 | ASLJ | ALL SERVICES LEASING INC | | | SCAC3 |
| 19 | ASLK | AMERICAN STAGE LINES | | | SCAC3 |
| 20 | ASLK | AIR & SURFACE LOGISTICS | | | SCAC4 |
| 21 | ASLL | AIR SEA LAND TRAVEL SERVICE INC | | | SCAC3 |
| 22 | ASLN | ASLAN TRUCK SERVICE | | | SCAC3 |
| 23 | ASLN | AMERICAN STAR LINES INC | | | SCAC4 |
| 24 | ASLO | AMERICAS SERVICE LINE LLC | | | SCAC4 |
| 25 | ASLP | ARIES LIMOUSINE SERVICE | | | SCAC3 |
| 26 | ASLP | ARTESANIAS EL PATIO | | | SCAC4 |
| 27 | ASLQ | AEROSOL TECHNIQUES INC | | | SCAC3 |
| 28 | ASLQ | ATLAS LOGISTICS LLC | | | SCAC4 |
| 29 | ASLR | ASL DISTRIBUTION SERVICES LIMITED | | | SCAC4 |
| 30 | ASLT | ASSELIN TRANSPORT LTEE | | | SCAC3 |
| 31 | ASLT | ALL SERVICE LOGISTIC INC | | | SCAC4 |
| 32 | ASLU | ALLIGATOR SHIPPING CONTAINER LINE LLC | | UAE | BIC |
| 33 | ASLU | AUSTRALIA STRAITS CONTAINER LINE | | | SCAC3 |
| 34 | ASLU | AUSTRALIA STRAITS CONTAINER LINE | | | SCAC4 |
| 35 | ASLV | ASTRO/LAWS MOVING & STORAGE | | | SCAC3 |
| 36 | ASLV | ASTRO/LAWS MOVING & STORAGE | | | SCAC4 |
| 37 | ASLVG | A.V.G. Ascherleber Verkehrsgesellschaft mbH | | DE | VKM |
| 38 | ASLW | AMERICAN SHORT LINE RAILROAD ASSOCI | | | SCAC3 |
| 39 | ASLX | American Surface Lines, LLC | added 1/2007 | | NAKINA |
| 40 | ASLX | Algoma Steamships, Ltd. | added 1/1979; 1/1980; eliminated 10/1984 | | NAKINA |
| 41 | ASLX | American Steel Car Lines, Inc. (Inland Car Lines, Inc.) | 7/1935 | | NAKINA |
| 42 | ASLX | Algoma Steamships, Ltd. | added 1/79; 1/80; eliminated 10/84 | | NRHS |
| 43 | ASLX | *ALGOMA STEAMSHIPS, LTD. | | | PWRC |
| 44 | ASLX | +AMERICAN SURFACE LINES, LLC | | | PWRC |
| 45 | ASLX | Algoma Steamships | | | RSRV |
| 46 | ASLX | AMERICAN SURFACE LINES LLC | | | SCAC4 |
| 47 | ASLY | ANT SEACARRIERS LIMITED | | | SCAC3 |
| 48 | ASLZ | AMERICAN SURFACE LINES LLC | | | SCAC4 |
