| 1 | WHT | White Airways S.A. | Callsign: Young Sky, Accounting Code recalled by IATA. Name change from YES - Linhas Aereas Charter, S.A. - Yestours. ICAO designator changed from YSS | P | AVCODES |
| 2 | WHT | White Airways S.A. | Callsign: Young Sky, Accounting Code reinstated by IATA. Name change from YES - Linhas Aereas Charter, S.A. - Yestours. ICAO designator changed from YSS | P | AVCODES |
| 3 | WHT | White Airways S.A. | IATA: WI, Callsign: Whitejet, Accounting Code reinstated by IATA. Name change from YES - Linhas Aereas Charter, S.A. - Yestours. ICAO designator changed from YSS | P | AVCODES |
| 4 | WHT | White | | | ICAO1 |
| 5 | WHTA | WHITE FARMS TRUCKING INC | | | SCAC4 |
| 6 | WHTB | WHITFIELD TRUCKING LLC | | | SCAC4 |
| 7 | WHTD | WILD HORSE TRANSPORTATION LLC | | | SCAC4 |
| 8 | WHTI | WALSH TRUCKING INC | | | SCAC4 |
| 9 | WHTJ | WALKER-HAYES TRANSPORT LLC | | | SCAC4 |
| 10 | WHTN | WHEATON WORLD WIDE MOVING | | | SCAC4 |
| 11 | WHTO | WHITNEY ORIGINALS | | | SCAC4 |
| 12 | WHTR | WHITE'S TRANSPORTATION | | | SCAC1 |
| 13 | WHTR | WHITE TRUCKING LTD | | | SCAC4 |
| 14 | WHTT | WHITES, TIM TOTAL TIRE NETWORK | | | SCAC4 |
| 15 | WHTU | WAH HING TRADING TRANSPORTATION CO LTD | | HK | BIC |
| 16 | WHTX | W.H. Tucker & Son Co. | 8/1920-7/1923 | | NAKINA |
| 17 | WHTX | ADM Milling Co. | added 7/1994; 7/2000; eliminated 10/2002 | | NAKINA |
| 18 | WHTX | ADM Transportation Co. | added 10/2002; 7/2005 | | NAKINA |
| 19 | WHTX | ADM Milling Co. | added 7/94; 7/2000 | | NRHS |
| 20 | WHTX | *W. H. TUCKER & SON CO. | | | PWRC |
| 21 | WHTX | +ADM TRANSPORTATION CO. [ADM MILLING CO.] | | | PWRC |
| 22 | WHTX | ADM Milling | | | RSRV |
| 23 | WHTX | ADM TRANSPORTATION COMPANY | | | SCAC4 |
| 24 | WHTY | WHITLEYS TRANSPORT INC | | | SCAC4 |
| 25 | WHTZ | RILEY WHITTLE, INC. (RWI TRANSPORTATION) | | | PWRC |
| 26 | WHTZ | Riley Whittle (RWI Transportation) | | | RSRV |
| 27 | WHTZ | RILEY WHITTLE, INC. (RWI TRANSPORTA | | | SCAC4 |
