| 1 | ACD | Academy Airlines | Callsign: Academy, | USA | AVCODES |
| 2 | ACD | Academy Airlines | | | ICAO1 |
| 3 | ACDA | AIR CANADA (AIR CODE AC) | | | SCAC4 |
| 4 | ACDB | ACTIVE DISTRIBUTION SERVICES INC | | | SCAC3 |
| 5 | ACDC | ACADEMY EXPRESS LLC | | | SCAC4 |
| 6 | ACDD | A-C DISTRIBUTING CO | | | SCAC3 |
| 7 | ACDE | ALL CARGO DRAYAGE INC | | | SCAC3 |
| 8 | ACDE | ALMETALS CO DIV CHAIN INDUSTRIES IN | | | SCAC4 |
| 9 | ACDF | ACS LINES | | | SCAC4 |
| 10 | ACDH | ACME DELIVERY & MESSENGER SERVICE I | | | SCAC3 |
| 11 | ACDI | AIM CONSOLIDATED & DISTRIBUTION CO | | | SCAC3 |
| 12 | ACDI | ALL CITY DELIVERY | | | SCAC4 |
| 13 | ACDK | ACEVEDO TRUCKING | | | SCAC4 |
| 14 | ACDL | ALL UNITED TRANSPORT INC | | | SCAC4 |
| 15 | ACDM | ACADEMY MOVERS INC | | | SCAC3 |
| 16 | ACDN | AMERICAN CANADIAN LINE INC | | | SCAC3 |
| 17 | ACDN | AUTOTRANSPORTES CORPORATIVOS DE NUE | | | SCAC4 |
| 18 | ACDN | Acadian Railway Company | | CDN | TRAFFIC |
| 19 | ACDO | ACCURATE CARGO DELIVERY SYSTEMS INC | | | SCAC4 |
| 20 | ACDP | AL COURIER DISPATCH INC | | | SCAC3 |
| 21 | ACDP | ACCEED TRANSPORT INC | | | SCAC4 |
| 22 | ACDQ | A C DELIVERY | | | SCAC3 |
| 23 | ACDR | ACME DRAYAGE | | | SCAC3 |
| 24 | ACDR | ACME DRAYAGE | | | SCAC4 |
| 25 | ACDS | ACTION DELIVERY SERVICE INC | | | SCAC3 |
| 26 | ACDS | ACS CANADA INC | | | SCAC4 |
| 27 | ACDT | ACORD TRANSPORTATION INC | | | SCAC3 |
| 28 | ACDU | ASSOCIATED CONTAINER TRANSPORTATION | | | SCAC3 |
| 29 | ACDU | ASSOCIATED CONTAINER TRANSPORTATION | | | SCAC4 |
| 30 | ACDV | ACE DELIVERY SERVICE INC | | | SCAC3 |
| 31 | ACDV | A & L SUPERIOR QUALITY SOD INC | | | SCAC4 |
| 32 | ACDX | AlliedSignal Inc. | added 1/1999; eliminated 7/2000 | | NAKINA |
| 33 | ACDX | Honeywell International, Inc. | added 7/2000; 7/2000-7/2005 | | NAKINA |
| 34 | ACDX | Allied Chemical Co. (Allied Corp.) | added 7/1984; 1/1985-1/1994; eliminated 1/1999 | | NAKINA |
| 35 | ACDX | First Union Properties, Inc. | added 4/1963; 7/1965-1/1980; eliminated 7/1984 | | NAKINA |
| 36 | ACDX | Allied Chemical Corp. | added 1/1963; eliminated 4/1963 | | NAKINA |
| 37 | ACDX | First Union Properties, Inc. | 7/65-1/80; eliminated 7/84 | | NRHS |
| 38 | ACDX | Allied Chemical Co. (Allied Corp.) | added 7/84 | | NRHS |
| 39 | ACDX | Allied Chemical Co. | Jan-94 | | NRHS |
| 40 | ACDX | Allied Chemical Co. (Allied Corp.) | eliminated 1/99 | | NRHS |
| 41 | ACDX | AlliedSignal Inc. | added 1/99; eliminated 7/2000 | | NRHS |
| 42 | ACDX | Honeywell International, Inc. | added 7/2000; 7/2000 | | NRHS |
| 43 | ACDX | *ALLIED CHEMICAL CO. | | | PWRC |
| 44 | ACDX | *FIRST UNION PROPERTIES | | | PWRC |
| 45 | ACDX | +HONEYWELL INTERNATIONAL, INC. | | | PWRC |
| 46 | ACDX | ALLIED CHEMICAL COMPANY (ALLIED CORPORATION) | | | PWRC |
| 47 | ACDX | Allied Chemical Corporation (Honeywell International) | | | RSRV |
| 48 | ACDX | FIRST UNION PROPERTIES INC | | | SCAC3 |
| 49 | ACDX | HONEYWELL INTERNATIONAL INC | | | SCAC4 |
