| 1 | ACT | Flight Line, Inc. | Callsign: American Check, | USA | AVCODES |
| 2 | ACT | Azienda Consorziale Transporti Reggio Emilia | | I | TRAFFIC |
| 3 | ACTB | A C T TRUCK LINES INC | | | SCAC3 |
| 4 | ACTB | A C T BROKERAGE INC | | | SCAC4 |
| 5 | ACTC | ASSOCIATED CONTAINER TRANSPORTATION (USA) | | | PWRC |
| 6 | ACTC | ACT Cagliari | | I | TRAFFIC |
| 7 | ACTD | ACE TRANSFER CO | | | SCAC3 |
| 8 | ACTD | ACTIVE MOULD AND DESIGN LIMITED | | | SCAC4 |
| 9 | ACTD | Aberdeen Corporation Transport Department | | GB | TRAFFIC |
| 10 | ACTE | ACME TRANSPORT INC | | | SCAC3 |
| 11 | ACTE | A CLASS TRANPORTATION LTD | | | SCAC4 |
| 12 | ACTF | AIR CONTACT TRANSPORT INC | | | SCAC4 |
| 13 | ACTG | A C T LOGISTICS INC | | | SCAC4 |
| 14 | ACTH | AC TRANSIT DISTRICT | | | SCAC3 |
| 15 | ACTH | ACTION IMPORTERS | | | SCAC4 |
| 16 | ACTION | Action | City: Canberra | AUS | TRAFFIC |
| 17 | ACTJ | A C TRANSPORTATION | | | SCAC3 |
| 18 | ACTL | ACCORD TRANSPORTATION LTD | | | SCAC3 |
| 19 | ACTL | ACCORD TRANSPORTATION LTD | | | SCAC4 |
| 20 | ACTM | ACTION MOVING & STORAGE INC | | | SCAC3 |
| 21 | ACTM | ACT MARITIME CO LTD | | | SCAC4 |
| 22 | ACTO | ALL CARRIER TRANSPORT | | | SCAC3 |
| 23 | ACTP | ASSOCIATED CONTAINER TRANSPORTATION (USA) | | | PWRC |
| 24 | ACTP | ALLIANCE TRANSPORTATION INC | | | SCAC4 |
| 25 | ACTQ | ASSOCIATED CONTAINER TRANSPORTATION (USA) | | | PWRC |
| 26 | ACTQ | ACE TRUCK LINES | | | SCAC3 |
| 27 | ACTQ | ACE TRUCK LINES | | | SCAC4 |
| 28 | ACTR | ASSOCIATED CONTAINER TRANSPORTATION (USA) | | | PWRC |
| 29 | ACTR | AMERICAN CONTRACT FREIGHT LINE | | | SCAC3 |
| 30 | ACTR | AMERICAN CONTRACT FREIGHT LINE | | | SCAC4 |
| 31 | ACTS | ASSOCIATED CONTAINER TRANSPORTATION (USA) | | | PWRC |
| 32 | ACTS | ACTS Nederland B.V. | | NL | TRAFFIC |
| 33 | ACTS | ACTS Nederland B.V. | | NL | VKM |
| 34 | ACTS | ACTS Abroll-Container-Transport System AG | | CH | VKM |
| 35 | ACTSB | ACTS Abroll-Container-Transport-Service AG | | CH | VKM |
| 36 | ACTSL | ACTS Luxembourg | | LU | VKM |
| 37 | ACTT | ASSOCIATED CONTAINER TRANSPORTATION (USA) | | | PWRC |
| 38 | ACTU | SARJAK CONTAINER LINES PVT LTD | | IND | BIC |
| 39 | ACTU | ASSOCIATED CONTAINER TRANSPORT | | | PWRC |
| 40 | ACTU | Associated Container Transport (Australia) | | | RSRV |
| 41 | ACTU | ASSOCIATED CONTAINER TRANSPORTATION | | | SCAC3 |
| 42 | ACTU | P & O NEDLLOYD BV | | | SCAC4 |
| 43 | ACTV | ACTIVE TRANSFER INC | | | SCAC3 |
| 44 | ACTV | ACTIVE TRANSFER INC | | | SCAC4 |
| 45 | ACTV | Azienda del Consorzio Trasporti Veneziano | City: Venedig | I | TRAFFIC |
| 46 | ACTW | ASSOCIATED CONTAINER TRANSPORTATION (USA) | | | PWRC |
| 47 | ACTX | Honeywell International, Inc. | added 7/2000; 7/2000-7/2005 | | NAKINA |
| 48 | ACTX | AlliedSignal Inc. | added 1/1999; eliminated 7/2000 | | NAKINA |
| 49 | ACTX | Allied Chemical Co. (Allied Corp.) | added 4/1982; 1/1985-1/1994; eliminated 1/1999 | | NAKINA |
| 50 | ACTX | Allied Chemical Corp. | added 10/1972; 1/1975-1/1980; eliminated 4/1982 | | NAKINA |
| 51 | ACTX | Acar Manufacturing Corp. | 8/1920-7/1923 | | NAKINA |
| 52 | ACTX | Allied Chemical Corp. | added 10/72; 1/75-1/80; eliminated 4/82 | | NRHS |
| 53 | ACTX | Allied Chemical Co. (Allied Corp.) | added 4/82; 1/94; eliminated 1/99 | | NRHS |
| 54 | ACTX | AlliedSignal Inc. | added 1/99; eliminated 7/2000 | | NRHS |
| 55 | ACTX | Honeywell International, Inc. | added 7/2000; 7/2000 | | NRHS |
| 56 | ACTX | *ACAR MANUFACTURING CO. | | | PWRC |
| 57 | ACTX | *FIRST UNION PROPERTIES, INC. (ALLIED CHEMICAL; ALLIED SIGNAL; HONEYWELL INTL. LESSEES) | | | PWRC |
| 58 | ACTX | +HONEYWELL INTERNATIONAL, INC. | | | PWRC |
| 59 | ACTX | ALLIED CHEMICAL COMPANY (ALLIED CORPORATION) | | | PWRC |
| 60 | ACTX | Allied Chemical (Honeywell International) | | | RSRV |
| 61 | ACTX | HONEYWELL INTERNATIONAL INC | | | SCAC4 |
| 62 | ACTY | AMERICAN TRANSPORTATION SYSTEMS INC | | | SCAC4 |
| 63 | ACTZ | AEPX COAL TERMINAL | | | PWRC |
