| 1 | HCG | Helicopteros de Guatemala | | GCA | AVCODES |
| 2 | HCGO | HULL COOPERATIVE ASSOCIATION | | | SCAC4 |
| 3 | HCGR | HAMMOND CARGO SERVICES, INC | | | SCAC1 |
| 4 | HCGU | HOUSTON CONTAINER CONNECTION | | USA | BIC |
| 5 | HCGU | Houston Container Connection | | | RSRV |
| 6 | HCGX | North American Salt Co. | added 1/1995; 7/2000-7/2005 | | NAKINA |
| 7 | HCGX | North American Salt Co. | added 1/95; 7/2000 | | NRHS |
| 8 | HCGX | NORTH AMERICAN SALT COMPANY | | | PWRC |
| 9 | HCGX | North American Salt | | | RSRV |
| 10 | HCGX | NORTH AMERICAN SALT | | | SCAC4 |
