| 1 | JEC | Jett8 Airlines Cargo Pte Ltd | IATA: JX, Callsign: Taipan, IATA Prefix: 693, AOC revoked by CAAS on 01 August 2012. | SGP | AVCODES |
| 2 | JEC | Jett8 Airlines Cargo | IATA: JX | | ICAO1 |
| 3 | JECI | JOSEPH & ELIZABETH CARRIERS INC | | | SCAC4 |
| 4 | JECL | JEFFCO LEASING COMPANY INC | | | SCAC4 |
| 5 | JECO | JET COURIERS | | | SCAC4 |
| 6 | JECT | JERSEY CITY TRANSFER INC | | | SCAC4 |
| 7 | JECU | JECO SHIPPING (USA) INC | | | SCAC4 |
| 8 | JECX | Western Resources, Inc. | added 1/1993; 1/1994-7/2005 | | NAKINA |
| 9 | JECX | Western Resources, Inc. | added 1/93; 1/94-7/2000 | | NRHS |
| 10 | JECX | WESTERN RESOURCES, INC. | | | PWRC |
| 11 | JECX | Western Resources | | | RSRV |
| 12 | JECX | WESTERN RESOURCES, INC. | | | SCAC4 |
| 13 | JECZ | JOHNSON ELK COAL | | | PWRC |
