| 1 | JTA | Japan Transocean Air Co. Ltd. | IATA: NU, Callsign: Jai Ocean, IATA Prefix: 353, | J | AVCODES |
| 2 | JTA | Japan Transocean Air | IATA: NU | | ICAO1 |
| 3 | JTA | Japan Transocean Air | | J | TRAFFIC |
| 4 | JTAF | JONES, MARK TRUCKING | | | SCAC4 |
| 5 | JTAFL | Jacksonville Transportation Authority | | US-FL | TRAFFIC |
| 6 | JTAG | JONES TRANSFER COMPANY INC | | | SCAC4 |
| 7 | JTAI | J & T LOGISTICS INC | | | SCAC4 |
| 8 | JTAJ | JORDDAN TRANSPORT | | | SCAC4 |
| 9 | JTAN | JT AIR TRANSPORT INC | | | SCAC4 |
| 10 | JTAP | JACAMAN TRANSPORTATION INC | | | SCAC4 |
| 11 | JTAQ | JC TRANSPORT | | | SCAC4 |
| 12 | JTAS | J T TRANSPORT | | | SCAC4 |
| 13 | JTAU | JUNTAI CONTAINER COMPANY | | HK | BIC |
| 14 | JTAX | Trinity Rail Management, Inc. | added 7/1997; 7/2000-7/2005; eliminated 1/2007 | | NAKINA |
| 15 | JTAX | Trinity Rail Management, Inc. | added 7/97; 7/2000 | | NRHS |
| 16 | JTAX | *(MCHX) TRANSCISCO LEASING COMPANY | | | PWRC |
| 17 | JTAX | *TRINITY RAIL MANAGEMENT INC | | | PWRC |
| 18 | JTAX | Trinity Rail Management | | | RSRV |
| 19 | JTAY | JACKSON TRUCKING | | | SCAC4 |
