| 1 | TKC | Tikal Jets, S.A. | IATA: A5, Callsign: Tikal, IATA designator changed to WU*. IATA designator changed from 2E* | GCA | AVCODES |
| 2 | TKC | Tikal Jets, S.A. | IATA: 2E, Callsign: Tikal, IATA designator changed to A5* | GCA | AVCODES |
| 3 | TKC | Tikal Jets, S.A. | IATA: WU, Callsign: Tikal, IATA designator changed to WU. IATA designator previously changed from 2E*, Then from A5* | GCA | AVCODES |
| 4 | TKC | Tikal Jets, S.A. | IATA: WU, Callsign: Tikal, Designator WU recalled by IATA. IATA designator changed from WU*. IATA designator previously changed from 2E*, Then from A5* | GCA | AVCODES |
| 5 | TKC | Tikal Jets, S.A. | Callsign: Tikal, Ceased operations. Designator WU recalled by IATA. IATA designator changed from WU*. IATA designator previously changed from 2E*, Then from A5* | GCA | AVCODES |
| 6 | TKC | THY Hava Kargo Tasimaciligi A.S. | Callsign: Trukish Cargo, | TR | AVCODES |
| 7 | TKC | Tikal Jets Airlines | | | ICAO1 |
| 8 | TKCB | TAIKO CARRIERS INC | | | SCAC4 |
| 9 | TKCC | TRUCKLOAD CARRIERS OF CHATTANOOGA L | | | SCAC4 |
| 10 | TKCD | TRANSTANK OF COLORADO LLC | | | SCAC4 |
| 11 | TKCE | TRUCK CITY EXPRESS LLC | | | SCAC4 |
| 12 | TKCH | THERMO KING | | | SCAC4 |
| 13 | TKCI | TRUCK-COURIER INC | | | SCAC4 |
| 14 | TKCP | TANKCON FRP INC | | | SCAC4 |
| 15 | TKCR | T K C TRANSPORT | | | SCAC4 |
| 16 | TKCS | Tiszakécske | | H | TRAFFIC |
| 17 | TKCT | THIESSEN LIVESTOCK | | | SCAC4 |
| 18 | TKCU | CONSERT S.R.L. | | I | BIC |
| 19 | TKCU | ABS PACIFIC | | | PWRC |
| 20 | TKCU | ABS Pacific (Concert) | | | RSRV |
| 21 | TKCU | CONSERT S R L | | | SCAC4 |
| 22 | TKCX | The Koster Co. | 8/1920 | | NAKINA |
| 23 | TKCX | Thiele Kaolin Co. | added 4/1968; 4/1970-7/2005; eliminated 4/2006 | | NAKINA |
| 24 | TKCX | Thiele Kaolin Co. | added 4/68; 4/70-7/2000 | | NRHS |
| 25 | TKCX | *KOSTER CO. | | | PWRC |
| 26 | TKCX | *THIELE KAOLIN COMPANY | | | PWRC |
| 27 | TKCX | Thiele Kaolin | | | RSRV |
| 28 | TKCY | TRUCKING COMPANY LLC, THE | | | SCAC4 |
