| 1 | ASC | Air Star Corporation | IATA: KK, Callsign: Air Star, | CDN | AVCODES |
| 2 | ASC | Alas del Sur | | BOL | AVCODES |
| 3 | ASC | Air Star Corporation | | | ICAO1 |
| 4 | ASC | ASICAR SRL | | RO | VKM |
| 5 | ASCA | ASCA MARINE INC. | | | SCAC3 |
| 6 | ASCA | AAA SPECIALIZED INC | | | SCAC4 |
| 7 | ASCB | ALLSCO BUILDING PRODUCTS INC | | | SCAC4 |
| 8 | ASCC | A S A P COURIER CORPORATION | | | SCAC3 |
| 9 | ASCC | ALCHEMIST SPECIALTY CARRIERS INC | | | SCAC4 |
| 10 | ASCD | ASSOCIATED TRUCKING INC | | | SCAC3 |
| 11 | ASCD | ARGUS CARRIERS LTD | | | SCAC4 |
| 12 | ASCE | ARTESANO COPPER IMPORTS | | | SCAC4 |
| 13 | ASCEN | Ascendos Rail Leasing | | EU | TRAFFIC |
| 14 | ASCEN | Ascendos Rail Leasing Sarl | | LU | VKM |
| 15 | ASCF | ALLSTATE CONSOLIDATORS AND FORWARDE | | | SCAC3 |
| 16 | ASCH | ASCHENBRENNER, DONALD H | | | SCAC3 |
| 17 | ASCH | A S C LINES | | | SCAC4 |
| 18 | ASCI | ASSOCIATED COURIERS INC | | | SCAC3 |
| 19 | ASCI | ASSOCIATED COURIERS INC | | | SCAC4 |
| 20 | ASCJ | AL-SAC CO INC | | | SCAC3 |
| 21 | ASCJ | AMERICAN SUPPLIES CARRIER | | | SCAC4 |
| 22 | ASCK | ALL STAR AUTO CARRIERS INC | | | SCAC3 |
| 23 | ASCK | ALPHAFORM EXHIBITS & DESIGN INC | | | SCAC4 |
| 24 | ASCM | ASC PACIFIC INC | | | SCAC3 |
| 25 | ASCM | ASC LLC | | | SCAC4 |
| 26 | ASCN | ASCO, INC | | | SCAC3 |
| 27 | ASCN | ASTEC INC | | | SCAC4 |
| 28 | ASCO | ASCOT CARTAGE CO INC | | | SCAC3 |
| 29 | ASCO | ANCHOR SOLUTIONS CORP | | | SCAC4 |
| 30 | ASCP | ARIES SHIPPING CO LTD | | | SCAC4 |
| 31 | ASCQ | ASHLEY COACHWAYS INC | | | SCAC3 |
| 32 | ASCS | ASSOCIATED TRANSPORTATION CONSULTAN | | | SCAC3 |
| 33 | ASCS | ASSOCIATED TRANSPORTATION CONSULTAN | | | SCAC4 |
| 34 | ASCT | ASCOT TRUCKING CORP | | | SCAC3 |
| 35 | ASCT | ASCOT TRUCKING INC | | | SCAC4 |
| 36 | ASCU | ABS- CONTAINERS BV | | NL | BIC |
| 37 | ASCV | ASAP COURIERS INC | | | SCAC3 |
| 38 | ASCV | AEROSTREAM CARGO SERVICES LTD | | | SCAC4 |
| 39 | ASCW | AMERIND SHIPPING CORP. | | | SCAC3 |
| 40 | ASCW | ADVANCED RELOCATION SYSTEMS INC | | | SCAC4 |
| 41 | ASCX | Armco Steel Co., L.P. | added 7/1991; 1/1994; eliminated 10/1994; 7/2000-7/2005 (not listed) | | NAKINA |
| 42 | ASCX | The Algoma Steel Corp., Ltd. | eliminated 10/1987 | | NAKINA |
| 43 | ASCX | The Algoma Steel Co., Ltd. | added 1/1985 | | NAKINA |
| 44 | ASCX | (The) Almalgamated Sugar Co. | 8/1920-10/1957; eliminated 1/1959 | | NAKINA |
| 45 | ASCX | Almalgamated Sugar Co. | 4/38-10/57; eliminated 1/59 | | NRHS |
| 46 | ASCX | The Algoma Steel Co., Ltd. | added 1/85 | | NRHS |
| 47 | ASCX | The Algoma Steel Corp., Ltd. | eliminated 10/87 | | NRHS |
| 48 | ASCX | Armco Steel Co., L.P. | added 7/91; 1/94; eliminated 10/94; 7/2000 | | NRHS |
| 49 | ASCX | *AMALGAMATED SUGAR CO. | | | PWRC |
| 50 | ASCX | *ALGOMA STEEL CORP. LTD. | | | PWRC |
| 51 | ASCX | +ARMCO STEEL COMPANY, LP | | | PWRC |
| 52 | ASCX | Algoma Steel Corporation (Armco Steel) | | | RSRV |
| 53 | ASCX | ARMCO STEEL COMPANY, L.P. | | | SCAC4 |
| 54 | ASCY | ALL STATE COURIER OF WASHINGTON INC | | | SCAC3 |
| 55 | ASCZ | AMERICAN SWEETENER CO. | | | PWRC |
