| 1 | GGS | GATSA General de Aerotransorte, S.A. de C.V. | Callsign: Gatsa, | MEX | AVCODES |
| 2 | GGS | GATSA | | | ICAO1 |
| 3 | GGS | Georgia Great Southern Division, South Carolina Central R.R. Co., Inc. | eliminated 7/1994; 7/2000 | | NAKINA |
| 4 | GGS | Georgia Great Southern Division | eliminated 4/1994 | | NAKINA |
| 5 | GGS | Georgia Great Southern Division, South Carolina Central/R.R. Co., Inc. | added 1/1991; 1/1994 | | NAKINA |
| 6 | GGS | Georgia Great Southern Division, South Carolina Central/R.R. Co., Inc. | added 1/91; 1/94 | | NRHS |
| 7 | GGS | Georgia Great Southern Division | eliminated 4/94 | | NRHS |
| 8 | GGS | Georgia Great Southern Division, South Carolina Central R.R. Co., Inc. | eliminated 7/94; 7/2000 | | NRHS |
| 9 | GGS | GEORGIA GREAT SOUTHERN DIV./ SOUTH CAROLINA CENTRAL RAILROAD CO. | | | PWRC |
| 10 | GGS | South Carolina Central Railroad (Georgia Great Southern Division) | | | RSRV |
| 11 | GGSB | GREGG SALES INC | | | SCAC4 |
| 12 | GGSC | G & G SPECIALIZED CARRIERS LLC | | | SCAC4 |
| 13 | GGSD | GKH GLOBAL SERVICES INC | | | SCAC4 |
| 14 | GGSF | GLOBAL GREEN SOLUTIONS OF INDIANA L | | | SCAC4 |
| 15 | GGSI | GILL, GURPAL SINGH ENTERPRISES LTD | | | SCAC4 |
| 16 | GGSL | G & G STEEL TRUCKING INC | | | SCAC4 |
| 17 | GGSN | GLASER GAS INC | | | SCAC4 |
| 18 | GGSO | GUTIERREZ GARZA, OSVALDO | | | SCAC4 |
| 19 | GGSQ | GENESIS GLOBAL SOLUTIONS CORPORATIO | | | SCAC4 |
| 20 | GGSR | GONZALEZ GARZA, SANTOS | | | SCAC4 |
| 21 | GGSU | SEACOR ISLAND LINES, LLC | | USA | BIC |
| 22 | GGSU | Seacor Island Lines | | | RSRV |
| 23 | GGSU | G & G MARINE INC | | | SCAC4 |
