| 1 | AKM | Acme | Callsign: Amce Aereo, | E | AVCODES |
| 2 | AKM | Mak Air | | | ICAO1 |
| 3 | AKMB | ALASKA MOBILE HOME MOVERS | | | SCAC3 |
| 4 | AKMC | ALASKA MARINE CHARTERS INC | | | SCAC3 |
| 5 | AKMC | AKWESASNE MOHAWK CASINO | | | SCAC4 |
| 6 | AKMD | Pinsly R.R. Co. | added 7/1996 | | NAKINA |
| 7 | AKMD | Arkansas Midland R.R. Co., Inc. | added 4/1997; 7/2000-7/2005 | | NAKINA |
| 8 | AKMD | Arkansas Midland R.R. Co., Inc. | eliminated 7/1996 | | NAKINA |
| 9 | AKMD | Pinsly R.R. Co. | eliminated 7/1995 | | NAKINA |
| 10 | AKMD | Arkansas Midland R.R. Co., Inc. | added 7/1992; 1/1994; added 4/1995; eliminated 7/1995 | | NAKINA |
| 11 | AKMD | Arkansas Midland R.R. Co., Inc. | added 7/92; 1/94; added 4/95; eliminated 7/95 | | NRHS |
| 12 | AKMD | Pinsly R.R. Co. | eliminated 7/95 | | NRHS |
| 13 | AKMD | Arkansas Midland R.R. Co., Inc. | eliminated 7/96 | | NRHS |
| 14 | AKMD | Pinsly R.R. Co. | added 7/96 | | NRHS |
| 15 | AKMD | Arkansas Midland R.R. Co., Inc. | added 4/97; 7/2000 | | NRHS |
| 16 | AKMD | *KANSAS MIDLAND RAILROAD CO. | | | PWRC |
| 17 | AKMD | +ARKANSAS MIDLAND RAILROAD CO. (PINSLY RAILROAD CO.) | | | PWRC |
| 18 | AKMD | Arkansas Midland Railroad | | | RSRV |
| 19 | AKMD | ARKANSAS MIDLAND RAILROAD CO INC | | | SCAC3 |
| 20 | AKMD | ARKANSAS MIDLAND RAILROAD CO INC | | | SCAC4 |
| 21 | AKMD | Arkansas Midland Railroad | | USA | TRAFFIC |
| 22 | AKME | ARKANSAS MARINE TRANSPORTATION INC | | | SCAC3 |
| 23 | AKME | ADK MARITIME PTE LTD | | | SCAC4 |
| 24 | AKMG | ALASKA MOVING AND STORAGE INC | | | SCAC4 |
| 25 | AKMH | AKRON MACHINERY TRANSPORT | | | SCAC3 |
| 26 | AKMN | ACKERMAN MANUFACTURING CO | | | SCAC3 |
| 27 | AKMO | ATKINS MOVING & STORAGE | | | SCAC3 |
| 28 | AKMO | AROOSTOOK MILLING CO INC | | | SCAC4 |
| 29 | AKMP | ANTEK MADISON PLASTICS ATLANTA LTD | | | SCAC4 |
| 30 | AKMQ | AARDVARK KEITH MOVING INC | | | SCAC4 |
| 31 | AKMR | ALASKA MARINE LINES, INC | | | SCAC3 |
| 32 | AKMR | ALASKA MARINE LINES INC | | | SCAC4 |
| 33 | AKMT | ALASKA MARINE TRUCKING | | | SCAC3 |
| 34 | AKMT | ALASKA MARINE TRANSPORT & SALVAGE I | | | SCAC4 |
| 35 | AKMU | ALTALOGOS LLC | | RUS | BIC |
| 36 | AKMU | AKAK MARINE CO. | | | SCAC3 |
| 37 | AKMX | HELM Financial Corp. | added 7/1997; 7/2000-7/2005; eliminated 10/2007 | | NAKINA |
| 38 | AKMX | HELM Financial Corp. | added 7/97; 7/2000 | | NRHS |
| 39 | AKMX | *A & K RAILROAD MATERIALS, INC. | | | PWRC |
| 40 | AKMX | *HELM FINANCIAL CORP. | | | PWRC |
| 41 | AKMX | A&K Railroad Materials (Helm Financial Corporation) | | | RSRV |