| 1 | CGW | Air Great Wall | Callsign: Changcheng, Merged | PRC | AVCODES |
| 2 | CGW | Air Great Wall | | | ICAO1 |
| 3 | CGW | Union Pacific Ry. Co. | added 10/1995; 7/2000-7/2005 | | NAKINA |
| 4 | CGW | Chicago and North Western Ry. Co. | added 1/1995; eliminated 10/1995 | | NAKINA |
| 5 | CGW | Chicago and North Western Transportation Co. | 1/1975-1/1994; eliminated 1/1995 | | NAKINA |
| 6 | CGW | Chicago Great Western Ry. Co. | 4/1938-10/1966 | | NAKINA |
| 7 | CGW | Chicago Great Western Ry. Co. | 4/38-10/66 | | NRHS |
| 8 | CGW | Chicago and North Western Transportation Co. | 1/75-1/94; eliminated 1/95 | | NRHS |
| 9 | CGW | Chicago and North Western Ry. Co. | added 1/95; eliminated 10/95 | | NRHS |
| 10 | CGW | Union Pacific Ry. Co. | added 10/95; 7/2000 | | NRHS |
| 11 | CGW | UP [CHICAGO & NORTH WESTERN TRANS. CO.; CHICAGO GREAT WESTERN RWY.] | | | PWRC |
| 12 | CGW | Chicago Great Western Railway (Union Pacific Railroad) | | | RSRV |
| 13 | CGW | Chicago Great Western | | USA | TRAFFIC |
| 14 | CGWC | CHAMPLAIN-GATEWAY CRUISES INC | | | SCAC3 |
| 15 | CGWC | CATALINA CARTAGE LLC | | | SCAC4 |
| 16 | CGWE | CANADIAN GREAT WESTERN EXPRESS LTD | | | SCAC3 |
| 17 | CGWG | CEDAR GROVE WAREHOUSING LLC | | | SCAC4 |
| 18 | CGWI | CARGO WINGS INC | | | SCAC3 |
| 19 | CGWL | CARGO WORLD LLC | | | SCAC4 |
| 20 | CGWN | CHINA RESOURCES TRANSPORTATION & GO | | | SCAC3 |
| 21 | CGWX | Crete Grain Co., Inc. | 7/2005 (not listed) | | NAKINA |
| 22 | CGWX | CRETE GRAIN CO., INC. | | | PWRC |
