| 1 | CGN | Chang an Airlines Limited Company | IATA: 2Z, Callsign: Chang an, Designator 2Z recalled by IATA | PRC | AVCODES |
| 2 | CGN | Changan Airlines Limited Company t/a Air Changan | IATA: 9H, Callsign: Chang an, IATA Prefix: 856, Designator 2Z recalled by IATA | PRC | AVCODES |
| 3 | CGN | Changan Airlines | IATA: 2Z | | ICAO1 |
| 4 | CGN | CAPE GIRARDEAU NORTHERN RR | | | PWRC |
| 5 | CGN | CargoNet AS | | N | TRAFFIC |
| 6 | CGNA | CRAIGCAT CANADA INC | | | SCAC4 |
| 7 | CGNA | Chang An Airlines | Real: CGN, 2Z | PRC | TRAFFIC |
| 8 | CGNC | CONREAUX, GENE & CO INC | | | SCAC3 |
| 9 | CGNC | CAROLINA GIN COMPANY INC | | | SCAC4 |
| 10 | CGND | CALONGNE DRAYAGE INC | | | SCAC3 |
| 11 | CGNE | Champagne R.R., Inc. | added 4/1993; 1/1994; eliminated 10/1996; 7/2000-7/2005 | | NAKINA |
| 12 | CGNE | Champagne R.R., Inc. | added 4/93; 1/94; eliminated 10/96; 7/2000 | | NRHS |
| 13 | CGNE | CHAMPAGNE RAILROAD, INC. | | | PWRC |
| 14 | CGNE | Champagne Railroad | | | RSRV |
| 15 | CGNF | CARGO NORTHWEST FORWARDERS INC | | | SCAC4 |
| 16 | CGNG | CMG TRUCKING INC | | | SCAC4 |
| 17 | CGNH | CARGA COLIMAN SA DE CV | | | SCAC4 |
| 18 | CGNI | CAGNIA INCORPORATION | | | SCAC4 |
| 19 | CGNJ | CARLYN GUNDRILLING LTD | | | SCAC4 |
| 20 | CGNL | CONGRESSIONAL MOVERS INC | | | SCAC3 |
| 21 | CGNM | CHAGNON MOTORSPORT INC | | | SCAC4 |
| 22 | CGNO | CAPORGNO TRUCKING | | | SCAC3 |
| 23 | CGNO | COUNTRY GARDEN CONCRETE | | | SCAC4 |
| 24 | CGNP | COMMISSION SALES MANAGEMENT INCORPO | | | SCAC3 |
| 25 | CGNP | C A G TRANSPORT | | | SCAC4 |
| 26 | CGNS | CG & S TRUCKING CO | | | SCAC3 |
| 27 | CGNT | CARGO NET INTERNATIONAL LLC | | | SCAC4 |
| 28 | CGNU | COGENIO IBERIA S.L. | | E | BIC |
| 29 | CGNV | CENAGO NAVIGATION LTD. | | | SCAC3 |
| 30 | CGNY | COLEMAN, GARY | | | SCAC4 |
