| 1 | MBB | Air Manas d/b/a Air Manas Ltd. Air Company | IATA: M2, Callsign: Air Manas, Founded in 2006. IATA designator changed to ZM | KS | AVCODES |
| 2 | MBB | Air Manas d/b/a Air Manas Ltd. Air Company | IATA: ZM, Callsign: Air Manas, Founded in 2006. Ceased operations. IATA designator changed to M2* | KS | AVCODES |
| 3 | MBB | Air Manas Air Company LLC | IATA: ZM, Callsign: Air Manas, IATA Prefix: 887, | KS | AVCODES |
| 4 | MBB | Air Manas | | | ICAO1 |
| 5 | MBB | Mansfelder Bergwerksbahn Verein e.V. | Benndorf | D | privat-bahn.de |
| 6 | MBB | Mecklenburgische Bäderbahn Molli | | DE | VKM |
| 7 | MBBA | MACK BROTHERS TRUCKING | | | SCAC4 |
| 8 | MBBB | Museumsbahn Bremerhaven-Bederkesa e. V. | | DE | VKM |
| 9 | MBBC | MACARBO INC | | | SCAC4 |
| 10 | MBBE | MYKLEBU | | | SCAC4 |
| 11 | MBBK | MAHONE BAY BOATWORKS | | | SCAC4 |
| 12 | MBBKB | Buckower Kleinbahn-Eisenbahnverein Märkische Schweiz e.V | | DE | VKM |
| 13 | MBBL | MAAN | | | SCAC4 |
| 14 | MBBT | MORRIS, B BROTHERS TRUCKING | | | SCAC4 |
| 15 | MBBU | MULTIBOXX LIMITED | | HK | BIC |
| 16 | MBBX | Tank Car Services, Inc. | added 1/1981; eliminated 1/1986 | | NAKINA |
| 17 | MBBX | Michael D. Boxberger | added 1/1980; 1/1980; eliminated 1/1981 | | NAKINA |
| 18 | MBBX | Michael D. Boxberger | added 1/80; 1/80; eliminated 1/81 | | NRHS |
| 19 | MBBX | Tank Car Services, Inc. | added 1/81; eliminated 1/86 | | NRHS |
| 20 | MBBX | TANK CAR SERVICES, INC. [MICHAEL D. BOXBERGER] | | | PWRC |
| 21 | MBBX | Tank Car Services Inc. | | | RSRV |
