| 2201 | WIBG | WILL TRANS | | | SCAC4 |
| 2202 | WIBK | WILLIAMS BROS TRUCKING LLC | | | SCAC4 |
| 2203 | WIBZ | WILBERT, INC. | | | PWRC |
| 2204 | WICB | WESTERN IOWA COOPERATIVE | | | SCAC4 |
| 2205 | WICC | WILCOX TRUCKING LLC | | | SCAC4 |
| 2206 | WICH | WICHITA MOVING & STORAGE | | | SCAC4 |
| 2207 | WICHITA | Wichita Transit | City: Wichita KS | USA | TRAFFIC |
| 2208 | WICO | William Cook Rail GmbH | | CH | VKM |
| 2209 | WICP | WORLDWIDE INVESTMENT CORP | | | SCAC4 |
| 2210 | WICQ | W I CONSTRUCTION INC | | | SCAC4 |
| 2211 | WICS | WEIRTON ICE & COAL SUPPLY COMPANY | | | SCAC4 |
| 2212 | WICT | Wisconsin & Calumet R.R. Co., Inc. | added 10/1985; 1/1994; eliminated 4/1995 | | NAKINA |
| 2213 | WICT | Wisconsin & Southern R.R. Co., Inc. | added 4/1995 | | NAKINA |
| 2214 | WICT | Wisconsin & Calumet R.R. Co., Inc. | eliminated 1/1998 | | NAKINA |
| 2215 | WICT | Wisconsin & Calumet R.R. Co., Inc. | 1/94; eliminated 4/95 | | NRHS |
| 2216 | WICT | Wisconsin & Southern R.R. Co., Inc. | added 4/95 | | NRHS |
| 2217 | WICT | Wisconsin & Calumet R.R. Co., Inc. | eliminated 1/98 | | NRHS |
| 2218 | WICT | WISCONSIN & SOUTHERN RAILROAD CO. [WISCONSIN AND CALUMET RAILROAD CO.] | | | PWRC |
| 2219 | WICT | Wisconsin and Calumet Railroad | | | RSRV |
| 2220 | WICU | WICAB CONTAINER AB | | S | BIC |
| 2221 | WICU | HEINRICH WIECHERS SEN KG | | | SCAC4 |
| 2222 | WICW | WICHITA SOUTH AND WEST | | | SCAC4 |
| 2223 | WID | Wind Airline, Joint-Stock Company | Callsign: Windaero, | RUS | AVCODES |
| 2224 | WID | Widgeon Airline | Callsign: Widgeon, | BY | AVCODES |
| 2225 | WIDG | WINDER TRUCKING LLC | | | SCAC4 |
| 2226 | WIDL | WORLDWIDE TRANSPORTATION LOGISTICS | | | SCAC4 |
| 2227 | WIDN | WIND RIVER TRUCKING | | | SCAC4 |
| 2228 | WIDQ | WINDFALL INC | | | SCAC4 |
| 2229 | WIDR | WIDER LOGISTICS LIMITED | | | SCAC4 |
| 2230 | WIDU | WICKS B V | | | SCAC4 |
| 2231 | WIEB | WIEBERG, RICKIE LLC | | | SCAC4 |
| 2232 | WIEBE | | | D | TRAFFIC |
| 2233 | WIEC | WEL COMPANIES INC (TL) | | | SCAC4 |
| 2234 | WIEL | WEL COMPANIES INC | | | SCAC4 |
| 2235 | WIEN | Wiener Linien | City: Wien | A | TRAFFIC |
| 2236 | WIES | WILDERNEST LOGISTICS SOLUTIONS INC | | | SCAC4 |
| 2237 | WIEX | Wilbur-Ellis Co. | eliminated 10/1995 | | NAKINA |
| 2238 | WIEX | Wilbur-Ellis Co. | eliminated 10/95 | | NRHS |
| 2239 | WIEX | WILBUR-ELLIS CO. | | | PWRC |
| 2240 | WIF | Wideroe's Flyveselskap A/S | IATA: WF, Callsign: Wideroe, IATA Prefix: 701, | N | AVCODES |
| 2241 | WIF | Wider?e | IATA: WF | | ICAO1 |
| 2242 | WIF | West India Fruit & Steam Ship Co. | 1/1950-4/1961 | | NAKINA |
| 2243 | WIF | Atlantic Coast Line R.R. | 7/1965-4/1970 | | NAKINA |
| 2244 | WIF | West India Fruit & Steamship | 1/1975-7/2005 | | NAKINA |
| 2245 | WIF | West India Fruit & Steam Ship Co. | 1/52-4/61 | | NRHS |
| 2246 | WIF | Atlantic Coast Line R.R. | 7/65-4/70 | | NRHS |
| 2247 | WIF | West India Fruit & Steamship | 1/75-7/2000 | | NRHS |
| 2248 | WIF | *ATLANTIC COAST LINE RAILROAD | | | PWRC |
| 2249 | WIF | +WEST INDIA FRUIT & STEAMSHIP CO. | | | PWRC |
| 2250 | WIF | West India Fruit and Steamship | | | RSRV |
| 2251 | WIF | WEST INDIA FRUIT & | | | SCAC4 |
| 2252 | WIF | West India Fruit & Steamship Co. | | USA | TRAFFIC |
| 2253 | WIFB | WEST ISLES TRANSPORT LTD | | | SCAC4 |
| 2254 | WIFD | WORLD INTERNATIONAL FORWARDING CO | | | SCAC4 |
| 2255 | WIFF | WHEELS INTERNATIONAL FRIEGHT SYSTEM | | | SCAC4 |
| 2256 | WIFG | WILE TRANSFER & STORAGE CO INC | | | SCAC4 |
| 2257 | WIFH | WHEELS INTERNATIONAL FREIGHT SYSTEM | | | SCAC4 |
| 2258 | WIFL | WHEELS INTERNATIONAL FREIGHT SYSTEM | | | SCAC4 |
| 2259 | WIFO | WISE FOODS INC | | | SCAC4 |
| 2260 | WIFS | WHEELS INTERNATIONAL FREIGHT SYSTEM | | | SCAC4 |
| 2261 | WIFW | WESTAR INTERNATIONAL FORWARDERS LP | | | SCAC4 |
| 2262 | WIG | Wiggins Airways | Callsign: Wiggins Airways, | USA | AVCODES |
| 2263 | WIG | Wiggins Airways | | | ICAO1 |
| 2264 | WIGC | WIGGERS CUSTOM FURNITURE LTD | | | SCAC4 |
| 2265 | WIGE | WINTERGREEN TRANSPORT CORP | | | SCAC1 |
| 2266 | WIGE | WINTERGREEN TRANSPORT CORP LTD | | | SCAC4 |
| 2267 | WIGG | WIGGINS, H C INC | | | SCAC4 |
| 2268 | WIGO | WIGGINTON OIL CO | | | SCAC4 |
| 2269 | WIGS | WESTERN INTERNATIONAL GAS & CYLINDE | | | SCAC4 |
| 2270 | WIGX | Wigeon Car Co. | added 1/1968; 4/1970-1/1980; eliminated 4/1992 | | NAKINA |
| 2271 | WIGX | Western International Gas & Cylinders, Inc. | 7/2005 (not listed) | | NAKINA |
| 2272 | WIGX | Wigeon Car Co. | added 1/68; 4/70-1/80; eliminated 4/92 | | NRHS |
| 2273 | WIGX | *RETIRED 08-22-92 ATP (1674) [WIGEON CAR CO.] | | | PWRC |
| 2274 | WIGX | +WESTERN INTERNATIONAL GAS & CYLINDERS, INC. | | | PWRC |
| 2275 | WIGX | Wigeon Car | | | RSRV |
| 2276 | WIGX | WESTERN INTERNATIONAL GAS & CYLINDE | | | SCAC4 |
| 2277 | WIHD | WHITE, HAROLD LUMBER INC | | | SCAC4 |
| 2278 | WIHL | WISHALL TRANSPORT | | | SCAC4 |
| 2279 | WIHS | WHITEHOUSE INC | | | SCAC4 |
| 2280 | WIIA | WESCO INTERNATIONAL INC | | | SCAC4 |
| 2281 | WIIG | W & I LEASING | | | SCAC4 |
| 2282 | WIIL | WILLIAMS, SHAUN TRUCKING | | | SCAC4 |
| 2283 | WIIN | WAYCON INNOVATION INC | | | SCAC4 |
| 2284 | WIIP | WILLPAK INDUSTRIES INC | | | SCAC4 |
| 2285 | WIIQ | WII TRANSPORT INC | | | SCAC4 |
| 2286 | WIIX | Williamette Industries, Inc. | added 10/1991; eliminated 4/1992 | | NAKINA |
| 2287 | WIIX | Williamette Industries, Inc. | added 4/1992; 1/1994-7/2000; eliminated 4/2003 | | NAKINA |
| 2288 | WIIX | Weyerhaeuser Co. | added 1/2004; 7/2005; eliminated 10/2008 | | NAKINA |
| 2289 | WIIX | Domtar | added 10/2008 | | NAKINA |
| 2290 | WIIX | Williamette Industries, Inc. | added 10/91; eliminated 4/92 | | NRHS |
| 2291 | WIIX | Williamette Industries, Inc. | added 4/92; 1/94-7/2000 | | NRHS |
| 2292 | WIIX | *WEYERHAEUSER CO. [WILLIAMETTE INDUSTRIES] | | | PWRC |
| 2293 | WIIX | +DOMTAR | | | PWRC |
| 2294 | WIIX | Williamette Industries | | | RSRV |
| 2295 | WIIX | WEYERHAEUSE | | | SCAC4 |
| 2296 | WIIZ | WILLIAMETTE INDUSTRIES | | | PWRC |
| 2297 | WIJL | WARREN, IAN J LTD | | | SCAC4 |
| 2298 | WIK | Waikato Apero Club (Inc) | | NZ | AVCODES |
| 2299 | WIKA | WICKS AIRFREIGHT INC. | | | SCAC1 |
| 2300 | WIKA | WICKS AIR FREIGHT INC | | | SCAC4 |
