| 1 | ACC | Aerocharter Midlands Ltd. | Callsign: Aerocharter, | GB | AVCODES |
| 2 | ACC | Avcard Services Ltd. | Founded in 1981 | GB | AVCODES |
| 3 | ACC | Airspeed Charter Ltd. | | JA | AVCODES |
| 4 | ACC | Avcard Services | | | ICAO1 |
| 5 | ACC | ALLIED CHEMICAL CO. | | | PWRC |
| 6 | ACC | Acciona | | E | TRAFFIC |
| 7 | ACCA | ARTIC CONTRACTERS | | | SCAC3 |
| 8 | ACCB | ACTIVE CAB CO | | | SCAC3 |
| 9 | ACCC | ACME CAB CO INC | | | SCAC3 |
| 10 | ACCC | ARCTIC CAT INC | | | SCAC4 |
| 11 | ACCE | ACME CARRIERS INC | | | SCAC3 |
| 12 | ACCF | AIR CAROLINA CO | | | SCAC3 |
| 13 | ACCI | ALL CITY CARTAGE | | | SCAC3 |
| 14 | ACCIO | Acciona Infraestructuras | | ES | VKM |
| 15 | ACCJ | A & C CARRIERS INC | | | SCAC4 |
| 16 | ACCK | ACCENT MOVING & STORAGE CO INC | | | SCAC3 |
| 17 | ACCL | ACCLAIM TANK TRANSPORTERS | | | SCAC3 |
| 18 | ACCM | ACCENT MOVING SERVICES | | | SCAC3 |
| 19 | ACCN | ACTION CENTER MOVING & STORAGE INC | | | SCAC3 |
| 20 | ACCN | AMERI-CAN CLASSIQUE | | | SCAC4 |
| 21 | ACCO | ATLANTA CARTAGE CORP | | | SCAC3 |
| 22 | ACCP | ACTION CONSTRUCTION MACHINERY CO | | | SCAC3 |
| 23 | ACCP | ACC SHIPPING U S A LTD | | | SCAC4 |
| 24 | ACCQ | ACCA INC | | | SCAC3 |
| 25 | ACCS | ATCHISON CHARTER SERVICE | | | SCAC3 |
| 26 | ACCS | ATCHISON CHARTER SERVICE | | | SCAC4 |
| 27 | ACCSA | Autotransportes colectivos castellonenses | City: Castellón | E | TRAFFIC |
| 28 | ACCT | AMERICAN CONTINENTAL TRANSPORT INC | | | SCAC3 |
| 29 | ACCT | ACCURATE DELIVERY INC | | | SCAC4 |
| 30 | ACCT | AC Transit: Alameda-Contra Costa Transit District | | US-CA | TRAFFIC |
| 31 | ACCU | ATLANTIC COAST CONTAINER | | USA | BIC |
| 32 | ACCU | Atlantic Coast Container Brokerage & Sales | | | RSRV |
| 33 | ACCU | ABOITIZ SHIPPING CORP. | | | SCAC3 |
| 34 | ACCU | ATLANTIC COAST CONTAINER BROKERAGE | | | SCAC4 |
| 35 | ACCV | ACTION COURIER, INC | | | SCAC3 |
| 36 | ACCV | ACTION SCS LLC | | | SCAC4 |
| 37 | ACCW | AMERICAN CEMENT CO INC | | | SCAC3 |
| 38 | ACCX | Consolidation Coal Co. | added 4/1990; 1/1994-7/2005 | | NAKINA |
| 39 | ACCX | The Ansul Co. | added 7/1964; 7/1965-1/1980; eliminated 5/1983 | | NAKINA |
| 40 | ACCX | Ansul Chemical Co. | 7/1930-4/1961; eliminated 7/1964 | | NAKINA |
| 41 | ACCX | Ansul Chemical Co. | 4/38-4/61; eliminated 7/64 | | NRHS |
| 42 | ACCX | The Ansul Co. | added 7/64; 7/65-1/80; eliminated 5/83 | | NRHS |
| 43 | ACCX | Consolidation Coal Co. | added 4/90; 1/94-7/2000 | | NRHS |
| 44 | ACCX | *ANSUL CHEMICAL CO. | | | PWRC |
| 45 | ACCX | +CONSOLIDATION COAL COMPANY [AMAX COAL COMPANY] | | | PWRC |
| 46 | ACCX | Ansul Chemical (Consolidation Coal) | | | RSRV |
| 47 | ACCX | ANSUL COMPANY THE | | | SCAC3 |
| 48 | ACCX | CONSOLIDATION COAL COMPANY | | | SCAC4 |
| 49 | ACCY | ALERT CARTAGE CO INC | | | SCAC3 |
| 50 | ACCY | ALLEN CANNING COMPANY | | | SCAC4 |
| 51 | ACCZ | ARCADIA CHEMICAL CORPORATION | | | PWRC |
| 52 | ACCZ | ANSTROM CARTAGE CO | | | SCAC3 |
