| 1 | AMS | Air Muskoka | Callsign: Air Muskoka, | CDN | AVCODES |
| 2 | AMS | Air Muskoka | IATA: 8K, Callsign: Air Muskoka, Designator recalled by IATA | CDN | AVCODES |
| 3 | AMS | Air Muskoka | | | ICAO1 |
| 4 | AMSA | AMSTAN TRUCKING, INC. | | | SCAC3 |
| 5 | AMSA | AMSTAN LOGISTICS | | | SCAC4 |
| 6 | AMSB | ACME MOVING & STORAGE CO INC | | | SCAC3 |
| 7 | AMSC | ANCO SHIPPING CO | | | SCAC3 |
| 8 | AMSD | ARMOUR MOVING & STORAGE | | | SCAC3 |
| 9 | AMSD | AMERICAN MATERIAL SERVICES INC | | | SCAC4 |
| 10 | AMSE | ACE MOVING AND STORAGE COMPANY | | | SCAC3 |
| 11 | AMSE | AMS TRANSPORTATION SERVICES INC | | | SCAC4 |
| 12 | AMSF | APPLEGATE MOVING & STORAGE INC | | | SCAC3 |
| 13 | AMSG | AMS EXPRESS LLC | | | SCAC4 |
| 14 | AMSH | AMERICAN TRANSPORTATION SERVICES IN | | | SCAC3 |
| 15 | AMSI | AMERICAN SHORTLINE INC. | | | PWRC |
| 16 | AMSI | A-ONE (A-1) MOVING & STORAGE INC | | | SCAC3 |
| 17 | AMSI | AMERICAN RELOCATION & LOGISTICS INC | | | SCAC4 |
| 18 | AMSJ | AIRLINE MOVING & STORAGE INC | | | SCAC3 |
| 19 | AMSJ | ARMSTRONG MOVING & STORAGE | | | SCAC4 |
| 20 | AMSK | A M & S TRANSPORTATION CO | | | SCAC3 |
| 21 | AMSK | A M & S TRANSPORTATION CO | | | SCAC4 |
| 22 | AMSL | AMERICANA MARINE SERVICES LLC | | | SCAC4 |
| 23 | AMSM | AMS MARINE SERVICES INC | | | SCAC3 |
| 24 | AMSM | AMERICAN SAFETY MOVERS INC | | | SCAC4 |
| 25 | AMSN | ARMSTRONG TRANSFER & STORAGE CO INC | | | SCAC3 |
| 26 | AMSN | AMERICA SURF CO | | | SCAC4 |
| 27 | AMSO | AAA MOVING AND STORAGE CO INC OF TA | | | SCAC3 |
| 28 | AMSP | ALL AMERICAN MOVING & STORAGE | | | SCAC3 |
| 29 | AMSP | AMERASIA SHIPPING LINE | | | SCAC4 |
| 30 | AMSQ | AMERICAN SECURITY STORAGE OF ANNAPO | | | SCAC3 |
| 31 | AMSQ | ACADEMY MOVING & STORAGE | | | SCAC4 |
| 32 | AMSR | ALMAC MOVING & STORAGE INC | | | SCAC3 |
| 33 | AMSS | AMISTAD TRANSFER & STORAGE CO | | | SCAC3 |
| 34 | AMSS | AMISTAD LOGISTICS LLC | | | SCAC4 |
| 35 | AMST | AMERICAN MOVING & STORAGE | | | SCAC3 |
| 36 | AMST | AMS TRANSPORTATION SERVICES INC | | | SCAC4 |
| 37 | AMST | Gemeente Vervoerbedrijf Amsterdam | Real: GVB, City: Amsterdam | NL | TRAFFIC |
| 38 | AMSU | AMASIS SHIPPING COMPANY LIMITED | | VN | BIC |
| 39 | AMSV | ACCENT MOVING & STORAGE | | | SCAC3 |
| 40 | AMSW | AMERICAN SHIPPING INC | | | SCAC3 |
| 41 | AMSW | AMERICAN SHIPPING INC | | | SCAC4 |
| 42 | AMSX | AllTrans Management Services Corp. | added 4/1998; 7/2000; eliminated 7/2004; 7/2005 (not listed) | | NAKINA |
| 43 | AMSX | American Stores Co. (Philadelphia, Pa.) (North Western Refrigerator Line Co.) | 7/1935-7/1936 | | NAKINA |
| 44 | AMSX | AllTrans Management Services Corp. | added 4/98; 7/2000 | | NRHS |
| 45 | AMSX | ALLTRANS MANAGEMENT SERVICES CORP | | | PWRC |
| 46 | AMSX | AllTrans Management Services Corporation | | | RSRV |
| 47 | AMSY | AMERICAN MEDICAL SYSTEMS | | | SCAC3 |
| 48 | AMSY | ATLANTIC MARITIME SHIP SUPPLY LLC | | | SCAC4 |
| 49 | AMSZ | AMALGAMATED SUGAR | | | PWRC |
