| 1 | KYC | Av Atlantic | Callsign: Dolphin, | USA | AVCODES |
| 2 | KYC | Av Atlantic | | | ICAO1 |
| 3 | KYCI | KINGSBURY COLONY INC | | | SCAC4 |
| 4 | KYCL | KYC LINES (USA) INC COMPTON CA | | | SCAC3 |
| 5 | KYCP | K Y C TRUCKING CORP | | | SCAC4 |
| 6 | KYCR | KEY CARRIERS | | | SCAC3 |
| 7 | KYCR | KOYO LINE LTD | | | SCAC4 |
| 8 | KYCS | KENTUCKY CONTAINER SERVICE INC | | | SCAC3 |
| 9 | KYCT | KEY CITY TRANSPORT INC | | | SCAC4 |
| 10 | KYCX | Kirby Refining Corp. | added 7/1954; 7/1954; eliminated 7/1956 | | NAKINA |
| 11 | KYCX | Kirby Chemical Co., Inc. | added 7/1953; eliminated 7/1954 | | NAKINA |
| 12 | KYCX | Kirby Refining Co. | eliminated 7/56 | | NRHS |
| 13 | KYCX | KIRBY REFINING CORP. [KIRBY CHEMICAL CO., INC. | | | PWRC |
