| 2201 | HHWF | HERITAGE HARDWOOD FLOORS | | | SCAC4 |
| 2202 | HHWI | HARDY, W HENRY INC | | | SCAC4 |
| 2203 | HHWY | HUB HIGHWAY SERVICES | | | SCAC4 |
| 2204 | HHX | Henaghan & Hanlon | 8/1920-7/1923 | | NAKINA |
| 2205 | HHX | HENAGHAN & HANLON | | | PWRC |
| 2206 | HHXR | H & H EXPRESS CO INC | | | SCAC4 |
| 2207 | HHXU | HK HONORTRANS DEVELOPMENT LIMITED | | PRC | BIC |
| 2208 | HHyJ | Höör - Hörby Järnväg | 1882 - 1915 | S | svenska-lok.se |
| 2209 | HI | Papillon Airways, Inc. | IATA accounting code 563 recalled. | USA | AVCODES |
| 2210 | HI | Hong Kong Air International Ltd. | Callsign: Coptair, | HK | AVCODES |
| 2211 | HI | Hispania Lineas Aereas, S.L. | ICAO: HSL, Callsign: Hotel India, IATA designator changed to XF. | E | AVCODES |
| 2212 | HI | Holton Inter-Urban Ry. Co. | 8/1920-10/1966 & 1/1975-1/1980; eliminated 4/1986 | | NAKINA |
| 2213 | HI | Holton Inter-Urban Ry. Co. | 4/38-10/66 & 1/75-1/80; eliminated 4/86 | | NRHS |
| 2214 | HI | HOLTON INTERURBAN RY | | | PWRC |
| 2215 | HI | Holton Interurban Railway | | | RSRV |
| 2216 | HI | Hammersley Iron | | AUS | TRAFFIC |
| 2217 | HIA | Canadian Eagle Aviation Ltd. | Callsign: Haida, | CDN | AVCODES |
| 2218 | HIA | Haskin Aviation, LLC | | USA | AVCODES |
| 2219 | HIA | Canadian Eagle Aviation | | | ICAO1 |
| 2220 | HIAC | HAULCO INC | | | SCAC4 |
| 2221 | HIAR | HAWAII AIR CARGO INC | | | SCAC4 |
| 2222 | HIAV | Hispano Aviación | | E | TRAFFIC |
| 2223 | HIB | Helibravo Aviacao. Lda. | Callsign: Helibravo, | P | AVCODES |
| 2224 | HIB | Helibravo Aviacao | | | ICAO1 |
| 2225 | HIBB | HILL, W W INC | | | SCAC4 |
| 2226 | HIBT | HIBA TRANSPORT | | | SCAC4 |
| 2227 | HIBU | HOYER GMBH | | D | BIC |
| 2228 | HIC | Helicopteros Insulares, S.L. | | E | AVCODES |
| 2229 | HIC | THE HIGH IRON CO.INC. | | | PWRC |
| 2230 | HICA | HI C TRANSPORTATION | | | SCAC4 |
| 2231 | HICC | HIGH TRACK LLC | | | SCAC4 |
| 2232 | HICI | HIGH POINT EQUIPMENT LTD | | | SCAC4 |
| 2233 | HICL | HARRINGTON TRUCKING | | | SCAC4 |
| 2234 | HICN | HIE HOLDINGS INC | | | SCAC4 |
| 2235 | HICT | HI C TRANSPORTATION INC | | | SCAC4 |
| 2236 | HICU | HAESAERTS INTERMODAL NV | | B | BIC |
| 2237 | HICU | HAESAERTS INTERMODAL NV | | | SCAC4 |
| 2238 | HICV | HORIZON INTERNATIONAL CARGO INC | | | SCAC4 |
| 2239 | HICX | HUNTSVILLE INTERNATIONAL INTERMODAL CENTER | | | PWRC |
| 2240 | HICX | Huntsville International Intermodal Center | | USA | TRAFFIC |
| 2241 | HID | Aviacion Ejecutiva de Hildago, S.A. de C.V. | Callsign: Ejecutiva Hidalgo, | MEX | AVCODES |
| 2242 | HID | Aviacion Ejecutiva De Hildago | | | ICAO1 |
| 2243 | HIDI | HI-DICE TRUCKING | | | SCAC4 |
| 2244 | HIDN | HIDDEN VALLEY TRANSFER INC | | | SCAC4 |
| 2245 | HIDQ | HI-DESERT MOVING & STG | | | SCAC4 |
| 2246 | HIDS | HI-DESERT TRANSFER & STORAGE | | | SCAC4 |
| 2247 | HIDT | HEITER TRUCK LINE INC | | | SCAC4 |
| 2248 | HIDX | Merchants Despatch Transportation Corp. | 1/1941-1/1943 | | NAKINA |
| 2249 | HIDX | MERCHANTS DESPATCH TRANSPORTATION CORP. | | | PWRC |
| 2250 | HIEC | HIEB TRANS LOGISTICS LLC | | | SCAC4 |
| 2251 | HIEL | HIELO Y REFRIGERACION FRONTERIZA SA | | | SCAC4 |
| 2252 | HIEM | HIBMA TRUCKING | | | SCAC4 |
| 2253 | HIEP | HOUSTON INTERMODAL EXPRESS LLC | | | SCAC4 |
| 2254 | HIER | HILLIER TRUCKING | | | SCAC4 |
| 2255 | HIES | HIERS, J CO INC | | | SCAC4 |
| 2256 | HIET | HIEL TRUCKING INC | | | SCAC4 |
| 2257 | HIF | Heli-Iberica Fotogrametria S.L. | Callsign: Hifsa, | E | AVCODES |
| 2258 | HIF | Heli-Iberica Fotogrametria | | | ICAO1 |
| 2259 | HIFER | HIFER CONSTRUCCION, CONSERVACION Y SERVICIOS, S.A. | | ES | VKM |
| 2260 | HIFI | HELLMANN WORLDWIDE LOGISTICS INC | | | SCAC4 |
| 2261 | HIG | Heli-inter Guyane | Callsign: Inter Guyane, | GUY | AVCODES |
| 2262 | HIG | Heli-Inter Guyane | | | ICAO1 |
| 2263 | HIGG | HIGG TRUCKING INC | | | SCAC4 |
| 2264 | HIGH | HIGHLAND TRANSPORTATION INC | | | SCAC4 |
| 2265 | HIGK | HIDALGOS TRUCKING | | | SCAC4 |
| 2266 | HIGO | HI-GRADE OIL CO INC | | | SCAC4 |
| 2267 | HIGR | HIGH-TECH AGRO LTD | | | SCAC4 |
| 2268 | HIGS | HERMILA INES, GARCIA BENAVIDES | | | SCAC4 |
| 2269 | HIGY | HIGHWAY FREIGHT SYSTEMS INC | | | SCAC4 |
| 2270 | HIHN | HIGH LINK LINE INC | | | SCAC4 |
| 2271 | HIHO | HITCH HOUSE, THE | | | SCAC4 |
| 2272 | HIHP | HIGH HOPES TRANSPORTATION INC | | | SCAC4 |
| 2273 | HIHR | HRCP II HAMPTON ROADS CHASSIS POOL | | | SCAC4 |
| 2274 | HIHT | HIGH TECHNOLOGY LOGISTICS | | | SCAC1 |
| 2275 | HIIA | HTS INTERNATIONAL INC | | | SCAC4 |
| 2276 | HIIN | HARMON INTERNATIONAL INDUSTRIES INC | | | SCAC4 |
| 2277 | HIIT | HAWAII INTERMODAL TANK TRANSPORT | | | SCAC4 |
| 2278 | HIIX | TTX Co., Hamburg Division | added 1/1992; 1/1994; eliminated 7/1996; 7/2000-7/2005 (not listed) | | NAKINA |
| 2279 | HIIX | Trailer Train Co., Hamburg Division | added 7/1984; eliminated 1/1992 | | NAKINA |
| 2280 | HIIX | Hamburg Industries, a Division of Trailer Train Co. | added 4/1984; eliminated 7/1984 | | NAKINA |
| 2281 | HIIX | Hamburg Industries, Inc. | added 4/1976; 1/1980; eliminated 4/1984 | | NAKINA |
| 2282 | HIIX | Hamburg Industries, Inc. | added 4/76; 1/80; eliminated 4/84 | | NRHS |
| 2283 | HIIX | Hamburg Industries, a Division of Trailer Train Co. | added 4/84; eliminated 7/84 | | NRHS |
| 2284 | HIIX | Trailer Train Co., Hamburg Division | added 7/84; eliminated 1/92 | | NRHS |
| 2285 | HIIX | TTX Co., Hamburg Division | added 1/92; 1/94; eliminated 7/96 | | NRHS |
| 2286 | HIIX | TTX Co., Hamburg Division | Jul-00 | | NRHS |
| 2287 | HIIX | TTX COMPANY - HAMBURG DIVISION | | | PWRC |
| 2288 | HIIX | Hamburg Industries (TTX) | | | RSRV |
| 2289 | HIIX | TTX COMPANY | | | SCAC4 |
| 2290 | HIJ | Helitech Aeroservices, Inc. | Name changed to DHC Corporation | J | AVCODES |
| 2291 | HIJ | DHC Corporation | Name changed from Helitech Aeroservices, Inc. | J | AVCODES |
| 2292 | HIKH | HIKOH TRUCKING | | | SCAC4 |
| 2293 | HIKS | HICKS TRUCKING INC | | | SCAC4 |
| 2294 | HIKT | HICK TRUCKING COMPANY OF LITCHFIELD | | | SCAC4 |
| 2295 | HIKW | HIRSCHE, KENNETH WILLIAM INC | | | SCAC4 |
| 2296 | HIL | Skyways Regional AB | IATA: HS, Callsign: Highland, Name changed to Svenska Direcktflyg AB. Name changed from Highland Air AB | S | AVCODES |
| 2297 | HIL | Highland Air AB | IATA: HS, Callsign: Highland, Name changed to Skyways Regional AB | S | AVCODES |
| 2298 | HIL | Svenska Direktflyg AB | IATA: HS, Callsign: Highland, ICAO designator changed to SKH, ICAO callsign changed to Skyreg. Name changed from Skyways Regional AB | S | AVCODES |
| 2299 | HILC | HILL TRANSPORT INC | | | SCAC4 |
| 2300 | HILF | HILITE SEAFOOD | | | SCAC4 |
