| 1 | GLI | Gallic Aviation | Callsign: Gallic, | F | AVCODES |
| 2 | GLIC | GIST LOGISTICS INC | | | SCAC4 |
| 3 | GLIE | G-LINE TRUCKING INC | | | SCAC4 |
| 4 | GLIK | GRACE LINE | | | SCAC4 |
| 5 | GLIL | GLOBETROTTER LOGISTICS INC | | | SCAC4 |
| 6 | GLIM | GLEAMRAY MARITIME INC | | | SCAC4 |
| 7 | GLINE | Gray Line | | USA | TRAFFIC |
| 8 | GLIP | GEL LOGISTICS INCORPORATED | | | SCAC4 |
| 9 | GLIR | GREAT | | | SCAC4 |
| 10 | GLIS | GALLANT TRANSPORT INC | | | SCAC4 |
| 11 | GLIU | MACCAUGHRIN MARITIME MARINE SYSTEMS | | | SCAC4 |
| 12 | GLIV | GT LOGISTICS INC | | | SCAC4 |
| 13 | GLIW | G-LINE | | | SCAC4 |
| 14 | GLIW | PKM Gliwice | | PL | TRAFFIC |
| 15 | GLIX | Georgia Power Co. | added 10/2007 | | NAKINA |
| 16 | GLIX | GEORGIA POWER CO. | | | PWRC |
| 17 | GLIX | GEORGIA POWER COMPANY | | | SCAC4 |
