| 2101 | WHPT | WHOLE HEALTHY PET, THE | | | SCAC4 |
| 2102 | WHPV | WHITE, PAUL V | | | SCAC4 |
| 2103 | WHQI | WHITENIGHT, DELAVAN E WHOLESALE PRO | | | SCAC4 |
| 2104 | WHQS | WHITACRE LOGISTICS SERVICES LLC | | | SCAC4 |
| 2105 | WHR | Hummingbird Helicopter Service, LLC | Callsign: Whirleybird, | USA | AVCODES |
| 2106 | WHR | Hummingbird Aviation, LLC | Callsign: Tangi, | USA | AVCODES |
| 2107 | WHR | Hummingbird Helicopter Service | | | ICAO1 |
| 2108 | WHR | Welsh Highland Railway | | GB | TRAFFIC |
| 2109 | WHRC | Windsor & Hantsport Ry. Co., Ltd. | added 7/1994; 7/2000-7/2005; eliminated 4/2008 | | NAKINA |
| 2110 | WHRC | Windsor & Hantsport Ry. Co., Ltd. | added 7/94; 7/2000 | | NRHS |
| 2111 | WHRC | WINDSOR & HANTSPORT RAILWAY COMPANY, LTD. | | | PWRC |
| 2112 | WHRC | Windsor and Hantsport Railway | | | RSRV |
| 2113 | WHRC | WINDSOR & HANTSPORT RAILWAY CO | | | SCAC4 |
| 2114 | WHRK | W H TRUCKING OF NC INC | | | SCAC4 |
| 2115 | WHRS | WHITEHALL ROWING AND SAIL | | | SCAC4 |
| 2116 | WHRT | WHEELER TRANSPORT LTD | | | SCAC4 |
| 2117 | WHRV | WILKENING, HARV TRANSPORT LTD | | | SCAC4 |
| 2118 | WHRX | CREATIVE CHARTERS, INC. | | | PWRC |
| 2119 | WHS | Wiking Helikopter Service, GmbH | Callsign: Weeking, | D | AVCODES |
| 2120 | WHS | Wiking Helikopter Service | | | ICAO1 |
| 2121 | WHSA | WHOLESALE TRUCK PARTS | | | SCAC4 |
| 2122 | WHSB | WHITE, SCOTTY B | | | SCAC4 |
| 2123 | WHSC | WHEAT STATE CARRIERS INC | | | SCAC4 |
| 2124 | WHSF | WHEELING STEEL | | | PWRC |
| 2125 | WHSG | WIGHTMAN SHIPPING CO INC | | | SCAC4 |
| 2126 | WHSH | WHITESHELL COLONY FARMS LTD | | | SCAC4 |
| 2127 | WHSL | WHITE STAR TRUCK LINES INC | | | SCAC4 |
| 2128 | WHSM | WHS | | | SCAC4 |
| 2129 | WHSO | WAREHOUSE ASSOCIATES LP | | | SCAC4 |
| 2130 | WHSP | WAREHOUSE SPECIALISTS INC | | | SCAC4 |
| 2131 | WHSQ | WHEELSKY LOGISTICS INC | | | SCAC4 |
| 2132 | WHSU | WAN HAI LINES LTD | | RC | BIC |
| 2133 | WHSU | WAN HAI LINES LTD | | | SCAC4 |
| 2134 | WHSX | North American Car Corp. | added 7/1966; 10/1966-1/1980; eliminated 1/1984 | | NAKINA |
| 2135 | WHSX | General Electric Railcar Services Corp. | added 1/1984; eliminated 7/1986 | | NAKINA |
| 2136 | WHSX | North American Car Corp. | added 7/66; 10/66-1/80 | | NRHS |
| 2137 | WHSX | General Electric Railcar Services Corp. | eliminated 7/86 | | NRHS |
| 2138 | WHSX | GE RAIL SERVICES [NORTH AMERICAN CAR CORP.] | | | PWRC |
| 2139 | WHSX | GE Rail Services | | | RSRV |
| 2140 | 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 |
| 2141 | 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 |
| 2142 | 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 |
| 2143 | WHT | White | | | ICAO1 |
| 2144 | WHTA | WHITE FARMS TRUCKING INC | | | SCAC4 |
| 2145 | WHTB | WHITFIELD TRUCKING LLC | | | SCAC4 |
| 2146 | WHTD | WILD HORSE TRANSPORTATION LLC | | | SCAC4 |
| 2147 | WHTI | WALSH TRUCKING INC | | | SCAC4 |
| 2148 | WHTJ | WALKER-HAYES TRANSPORT LLC | | | SCAC4 |
| 2149 | WHTN | WHEATON WORLD WIDE MOVING | | | SCAC4 |
| 2150 | WHTO | WHITNEY ORIGINALS | | | SCAC4 |
| 2151 | WHTR | WHITE'S TRANSPORTATION | | | SCAC1 |
| 2152 | WHTR | WHITE TRUCKING LTD | | | SCAC4 |
| 2153 | WHTT | WHITES, TIM TOTAL TIRE NETWORK | | | SCAC4 |
| 2154 | WHTU | WAH HING TRADING TRANSPORTATION CO LTD | | HK | BIC |
| 2155 | WHTX | W.H. Tucker & Son Co. | 8/1920-7/1923 | | NAKINA |
| 2156 | WHTX | ADM Milling Co. | added 7/1994; 7/2000; eliminated 10/2002 | | NAKINA |
| 2157 | WHTX | ADM Transportation Co. | added 10/2002; 7/2005 | | NAKINA |
| 2158 | WHTX | ADM Milling Co. | added 7/94; 7/2000 | | NRHS |
| 2159 | WHTX | *W. H. TUCKER & SON CO. | | | PWRC |
| 2160 | WHTX | +ADM TRANSPORTATION CO. [ADM MILLING CO.] | | | PWRC |
| 2161 | WHTX | ADM Milling | | | RSRV |
| 2162 | WHTX | ADM TRANSPORTATION COMPANY | | | SCAC4 |
| 2163 | WHTY | WHITLEYS TRANSPORT INC | | | SCAC4 |
| 2164 | WHTZ | RILEY WHITTLE, INC. (RWI TRANSPORTATION) | | | PWRC |
| 2165 | WHTZ | Riley Whittle (RWI Transportation) | | | RSRV |
| 2166 | WHTZ | RILEY WHITTLE, INC. (RWI TRANSPORTA | | | SCAC4 |
| 2167 | WHU | West-Caravan Ltd. | | H | AVCODES |
| 2168 | WHUC | WHITE TRUX LLC | | | SCAC4 |
| 2169 | WHUL | WILSON HAULING INC | | | SCAC4 |
| 2170 | WHUNT | West Hunterdon Transit | | US-NJ | TRAFFIC |
| 2171 | WHUT | WASTEHAUL TRANSPORT INC | | | SCAC4 |
| 2172 | WHV | Witt Handelsvertertung GmbH | | DE | VKM |
| 2173 | WHVH | WHORVATH TRUCKING & MAINTENANCE CO | | | SCAC4 |
| 2174 | WHWN | WAYNESBURG & WASHINGTON | | | PWRC |
| 2175 | WHWN | WHW INC | | | SCAC4 |
| 2176 | WHXA | WILLHAUL TRANSPORTATION | | | SCAC4 |
| 2177 | WHXL | WORKHORSE EXPRESS LLC | | | SCAC4 |
| 2178 | WHXN | WHITESTONE TRANSPORTATION LLC | | | SCAC4 |
| 2179 | WHY | Air Sorel Ltee. | Callsign: Air Sorel, | CDN | AVCODES |
| 2180 | WHY | Air Sorel | | | ICAO1 |
| 2181 | WHYA | WESTERN HYWAY OIL CO | | | SCAC4 |
| 2182 | WHYD | WHY WAIT ? TAXI AND | | | SCAC4 |
| 2183 | WHYG | WHITFIELD HAY & GRAIN | | | SCAC4 |
| 2184 | WHZ | Whizzard Helicopters | Callsign: Spellcaster, | GB | AVCODES |
| 2185 | WHZM | WHIZZ MARTS INC | | | SCAC4 |
| 2186 | WI | Rottnest Airlines | | AUS | AVCODES |
| 2187 | WI | Tradewinds Airlines, Inc. | ICAO: TDX, Callsign: Tradewinds Express, Designator WI* recalled by IATA. IATA designator WI* reinstated | USA | AVCODES |
| 2188 | WI | Wilken Air Services Ltd. | Callsign: Wilken, | EAK | AVCODES |
| 2189 | WI | White Airways S.A. | ICAO: WHT, Callsign: Whitejet, Accounting Code reinstated by IATA. Name change from YES - Linhas Aereas Charter, S.A. - Yestours. ICAO designator changed from YSS | P | AVCODES |
| 2190 | WI | WATCO SWITCH INDIANA (CODE PREVIOUSLY ASSIGNED TO WOODWARD INC.) | | | PWRC |
| 2191 | WI | Wieslauftalbahn | | D | TRAFFIC |
| 2192 | WIA | Windward Islands Airways International N.V. | IATA: WM, Callsign: Windward, IATA Prefix: 295, | NA | AVCODES |
| 2193 | WIA | Windward Islands Airways International | | | ICAO1 |
| 2194 | WIAC | WILGRO INC | | | SCAC4 |
| 2195 | WIAG | WINDSOR FEEDSCREWS INC | | | SCAC4 |
| 2196 | WIAK | WISEHART INVESTMENTS | | | SCAC4 |
| 2197 | WIAL | WILLYS FANCY FISH LTD | | | SCAC4 |
| 2198 | WIAO | WILKINSON CONSTRUCTION CO INC | | | SCAC4 |
| 2199 | WIBA | WILMINGTON BOAT MOVERS & STORAGE | | | SCAC1 |
| 2200 | WIBA | WILMINGTON BOATMOVERS INC | | | SCAC4 |
