| 1 | RAM | Royal Air Maroc | IATA: AT, Callsign: Royalair Maroc, IATA Prefix: 147, | MA | AVCODES |
| 2 | RAM | Royal Air Maroc | IATA: AT | | ICAO1 |
| 3 | RAMA | London Cityrama | | GB | TRAFFIC |
| 4 | RAMB | RAMBLER INC | | | SCAC3 |
| 5 | RAMB | RAMBLIN EXPRESS INC | | | SCAC4 |
| 6 | RAMC | RAM MOTOR EXPRESS INC | | | SCAC3 |
| 7 | RAMC | RAM CRUCES INTERNACIONALES | | | SCAC4 |
| 8 | RAMD | R & M DELIVERY SERVICE | | | SCAC3 |
| 9 | RAME | RAM EXPRESS INC | | | SCAC3 |
| 10 | RAME | RAM SPECIALIZED CARRIERS INC | | | SCAC4 |
| 11 | RAMF | RAM FREIGHT LINES, INC | | | SCAC3 |
| 12 | RAMF | RAM FOREST GROUP INC | | | SCAC4 |
| 13 | RAMG | RAM TRUCKING & RIGGING INC | | | SCAC4 |
| 14 | RAMH | RAMSEY LUMBER CO INC | | | SCAC3 |
| 15 | RAMH | RAMSEY LUMBER CO INC | | | SCAC4 |
| 16 | RAMI | R A M TRUCKING | | | SCAC4 |
| 17 | RAMJ | RAM CONSTRUCTION CO LTD | | | SCAC4 |
| 18 | RAMK | RAMSEY, K S TRUCKING | | | SCAC3 |
| 19 | RAMM | RAMSEYS TRANSFER | | | SCAC3 |
| 20 | RAMM | R A M EXPRESS LLC | | | SCAC4 |
| 21 | RAMN | RAM INC | | | SCAC4 |
| 22 | RAMO | RAMOS TRUCKING | | | SCAC3 |
| 23 | RAMO | RAMOS TRUCKING | | | SCAC4 |
| 24 | RAMP | R A M TRANSIT LINES INC | | | SCAC4 |
| 25 | RAMQ | RAMIREZ TRUCKING CO | | | SCAC3 |
| 26 | RAMQ | RAMIREZ TRUCKING CO | | | SCAC4 |
| 27 | RAMR | RAEMARC INC | | | SCAC3 |
| 28 | RAMR | RAMBLIN ROSE TRANSPORT INC | | | SCAC4 |
| 29 | RAMT | RAYMOND MOTOR TRANSPORT INC | | | PWRC |
| 30 | RAMT | RAM TRANS INC | | | SCAC3 |
| 31 | RAMU | RANI SERVICES SA | | | SCAC4 |
| 32 | RAMV | RANSLER MOVING & STORAGE CO | | | SCAC3 |
| 33 | RAMV | R A M VAN BODIES | | | SCAC4 |
| 34 | RAMW | RAMAR WHSE & TRANSP | | | SCAC3 |
| 35 | RAMW | RAM INDUSTRIES INC | | | SCAC4 |
| 36 | RAMX | Rail Merchants International | 7/2005 (not listed) | | NAKINA |
| 37 | RAMX | Rail America, Ltd. | added 7/1982; eliminated 1/1984; 1/1994 (not listed) | | NAKINA |
| 38 | RAMX | Railway Automated Machinery Co. | added 7/1967; 4/1970; eliminated 1/1971 | | NAKINA |
| 39 | RAMX | Railway Automated Machinery Co. | added 7/67; 4/70; eliminated 1/71 | | NRHS |
| 40 | RAMX | Rail America, Ltd. | added 7/82; 1/94 | | NRHS |
| 41 | RAMX | *RAILWAY AUTOMATED MACHINERY CO. | | | PWRC |
| 42 | RAMX | +RAIL MERCHANTS INTERNATIONAL [RAILAMERICA, LTD.] | | | PWRC |
| 43 | RAMX | Rail America (Genessee & Wyoming) | | | RSRV |
| 44 | RAMX | RAIL MERCHANTS INTERNATIONAL | | | SCAC4 |
| 45 | RAMY | RAMSEY TRUCKING INC | | | SCAC3 |
| 46 | RAMZ | (REAZ) RETIRED 04-06-94 ATP (ACI 2512) | | | PWRC |
