| 1 | COM | Comair, Inc. | IATA: OH, Callsign: Comair, IATA Prefix: 886, Ceased operations on 29 September 2012 | USA | AVCODES |
| 2 | COM | Comair, Inc. | Callsign: Comair, | USA | AVCODES |
| 3 | COM | Comair | IATA: OH | | ICAO1 |
| 4 | COM | Comair | Subsidiary of Delta Airlines | USA | TRAFFIC |
| 5 | COMA | COMMERCIAL TRANSPORT, INC | | | SCAC3 |
| 6 | COMA | COMMERCIA | | | SCAC4 |
| 7 | COMAX | COMAX-TT, a.s. | | SK | VKM |
| 8 | COMB | COMBS TRUCKING CO INC | | | SCAC3 |
| 9 | COMC | COMMANCHE EXPRESS LINES INC | | | SCAC3 |
| 10 | COMCM | COMCM Constanta | | RO | VKM |
| 11 | COMCOACH | Community Coach | | USA | TRAFFIC |
| 12 | COMD | COMMODORE SHIPPING CO LTD | | | SCAC4 |
| 13 | COME | COMER TRUCKING | | | SCAC3 |
| 14 | COME | COM EX TRANSPORT | | | SCAC4 |
| 15 | COMF | COMET MESSENGER SERVICE INC | | | SCAC3 |
| 16 | COMH | COMANAV HAMBURG GERMANY | | | SCAC3 |
| 17 | COMH | COMANDOS SHUTTLE S A DE C V | | | SCAC4 |
| 18 | COMI | COAST OYSTER COMPANY | | | SCAC3 |
| 19 | COMJ | COMMERCIAL CARRIERS, INC | | | SCAC3 |
| 20 | COMJ | CORPORATIVO MT | | | SCAC4 |
| 21 | COML | COLVIN MOTOR LINES, INC | | | SCAC3 |
| 22 | COML | COLVINS MOTOR LINES | | | SCAC4 |
| 23 | COMM | COMMONWEA | | | SCAC4 |
| 24 | COMMUNITY | Community Bus Lines | | US-NJ | TRAFFIC |
| 25 | COMN | CONTINENTAL MAILING SYSTEMS INC | | | SCAC3 |
| 26 | COMN | CONTINENTAL MAILING SYSTEMS INC | | | SCAC4 |
| 27 | COMP | COMPTON, T H, INC | | | SCAC3 |
| 28 | COMS | COMMERCIAL FURNITURE DISTRIBUTORS I | | | SCAC3 |
| 29 | COMS | CONTRACT FURNITURE TRANSPORT INC | | | SCAC4 |
| 30 | COMSA | | | E | TRAFFIC |
| 31 | COMTRANSIT | Community Transit | | USA | TRAFFIC |
| 32 | COMU | COMMONWEALTH STEEL COMPANY PTY LTD | | AUS | BIC |
| 33 | COMU | COMPREHENSIVE SHIPPING LTD | | | SCAC3 |
| 34 | COMU | COMMONWEA | | | SCAC4 |
| 35 | COMW | COLE MOVING & STORAGE COMPANY INC | | | SCAC3 |
| 36 | COMW | COLUMBIA MACHINE WORKS LTD | | | SCAC4 |
| 37 | COMX | Exelon Generation Co., LLC | added 10/2006 | | NAKINA |
| 38 | COMX | Commonwealth Edison Co. | added 4/1995; 7/2000-7/2005; eliminated 10/2006 | | NAKINA |
| 39 | COMX | Commerce Transportation System (North American Car Co.) | 7/1923 | | NAKINA |
| 40 | COMX | Commerce Transportation System | 8/1920 | | NAKINA |
| 41 | COMX | Commonwealth Edison Co. | added 4/95; 7/2000 | | NRHS |
| 42 | COMX | *COMMERCE TRANSPORTATION SYSTEM (NORTH AMERICAN CAR CO.) | | | PWRC |
| 43 | COMX | +EXELON GENERATION CO. LLC [COMMONWEALTH EDISON CO.] | | | PWRC |
| 44 | COMX | Commonwealth Edison | | | RSRV |
| 45 | COMX | EXELON GENERATING COMPANY LLC | | | SCAC4 |
| 46 | COMY | COLORADO MOVERS INC | | | SCAC3 |
| 47 | COMZ | CORDERO MINE | | | PWRC |