| 2301 | KIGC | KINGS COUNTY TRUCK LINE | | | SCAC3 |
| 2302 | KIGD | KINGDOM SHIPPING LIMITED | | | SCAC4 |
| 2303 | KIGE | KINGS EXPRESS INC | | | SCAC3 |
| 2304 | KIGE | KINGS EXPRESS INC | | | SCAC4 |
| 2305 | KIGJ | KISHIDA, GEORGE JR | | | SCAC3 |
| 2306 | KIGP | KINGS TRANSPORT INC | | | SCAC3 |
| 2307 | KIGU | KEN INDUSTRIAL GASES PTE LTD | | SGP | BIC |
| 2308 | KIGU | KEN INDUSTRIAL GASES PTE LTD | | | SCAC4 |
| 2309 | KIGW | KINGSWAY LOGISTICS CORP | | | SCAC4 |
| 2310 | KIHM | KIES, HARRY M, W | | | SCAC3 |
| 2311 | KIHQ | KISHIDA, GEORGE | | | SCAC3 |
| 2312 | KII | Kalitta Charters II, LLC | IATA: K5, Callsign: Dragster, | USA | AVCODES |
| 2313 | KIIC | KLEEGE INDUSTRIES INC | | | SCAC4 |
| 2314 | KIIM | KEIM TS INC | | | SCAC4 |
| 2315 | KIIN | KATAL INNOVATIONS INC | | | SCAC4 |
| 2316 | KIIX | Koppers Industries, Inc. | added 7/1997; 7/2000-7/2005 | | NAKINA |
| 2317 | KIIX | Kerley Industries, Inc. | added 10/1984; eliminated 7/1989 | | NAKINA |
| 2318 | KIIX | Kerley Industries, Inc. | added 10/84; eliminated 7/89 | | NRHS |
| 2319 | KIIX | Koppers Industries, Inc. | added 7/97; 7/2000 | | NRHS |
| 2320 | KIIX | KOPPERS INDUSTRIES, INC. [KERLEY INDUSTRIES INC.] | | | PWRC |
| 2321 | KIIX | Koppers Industries | | | RSRV |
| 2322 | KIIX | KOPPERS INDUSTRIES INC | | | SCAC4 |
| 2323 | KIJ | Kristianstad - Immeln Järnväg | 1885 - 1906 | S | svenska-lok.se |
| 2324 | KIJC | KITCHEN, JAMES C INC | | | SCAC3 |
| 2325 | KIJO | KING, JOHN TRUCKING | | | SCAC3 |
| 2326 | KIJT | KIRBY, JACK TRUCKING | | | SCAC3 |
| 2327 | KIKE | KIKE TRANSPORT INC | | | SCAC4 |
| 2328 | KIKO | NIKIKO INC | | | SCAC4 |
| 2329 | KIL | Air Lines of Kuban | IATA: GW, Callsign: Air Kuban, IATA Prefix: 113, Founded in 1992. Ceased operations in 11 December 2012. | RUS | AVCODES |
| 2330 | KIL | Kuban Airlines | IATA: GW | | ICAO1 |
| 2331 | KILB | KILBOURNE W H | | | SCAC3 |
| 2332 | KILC | KILE TRANSFER CORP | | | SCAC3 |
| 2333 | KILE | KILLIAM, EDWIN | | | SCAC3 |
| 2334 | KILE | KILLIAM, EDWIN | | | SCAC4 |
| 2335 | KILF | KILO FORWARDERS INC | | | SCAC3 |
| 2336 | KILF | KILDARE FISHERIES LTD | | | SCAC4 |
| 2337 | KILG | KILGORE | | | SCAC4 |
| 2338 | KILH | KIRKLAND INDUSTRIES LLC | | | SCAC4 |
| 2339 | KILI | KILLION INC | | | SCAC3 |
| 2340 | KILI | KEYSTONE INTERNATIONAL LOGISTICS IN | | | SCAC4 |
| 2341 | KILJ | KILFOYL, J TRUCKING | | | SCAC3 |
| 2342 | KILK | KILLINGBECK TRANSPORT | | | SCAC4 |
| 2343 | KILM | KILMER TRANSPORTATION CO | | | SCAC3 |
| 2344 | KILN | KILN-DIRECT.COM | | | SCAC4 |
| 2345 | KILO | KING LIMOUSINE | | | SCAC3 |
| 2346 | KILP | KOREA INTERNATIONAL LOGISTICS CO LT | | | SCAC4 |
| 2347 | KILQ | KILPATRICKS TRANSFER & STORAGE CO | | | SCAC3 |
| 2348 | KILR | KILLION, RAYMOND | | | SCAC3 |
| 2349 | KILS | K & I LINES INC | | | SCAC3 |
| 2350 | KILS | KILCOIN SPECIALIZED TRUCKING LLC | | | SCAC4 |
| 2351 | KILT | KNUD I LARSEN TANKERS LTD | | | SCAC3 |
| 2352 | KILT | KNUD I LARSEN TANKERS LTD | | | SCAC4 |
| 2353 | KILU | KIMIA INTERNATIONAL PTE LTD | | SGP | BIC |
| 2354 | KILV | KOUSA INTL LOGISTICS CO LTD | | | SCAC4 |
| 2355 | KILW | KONIG INTERNATIONAL LOGISTICS LLC | | | SCAC4 |
| 2356 | KIM | Skimaster Guinea Ecuatorial | Callsign: Skimas, | GQ | AVCODES |
| 2357 | KIMA | KIMBALL, ED & SONS | | | SCAC3 |
| 2358 | KIMB | KIMBER, WAYNE TRUCKING INC | | | SCAC4 |
| 2359 | KIMC | KIMBERLY CLARK | | | PWRC |
| 2360 | KIMC | KIMCO EXPRESS INC | | | SCAC3 |
| 2361 | KIMC | KIMCO STEEL SALES LIMITED | | | SCAC4 |
| 2362 | KIMD | KINMAN, ARTHUR D TRUCKING | | | SCAC3 |
| 2363 | KIME | KIMMER EQUIPMENT INC | | | SCAC4 |
| 2364 | KIMG | KIDNEY MOVING & STORAGE INC | | | SCAC3 |
| 2365 | KIMH | KRISCH, MICHAEL T TRUCKING | | | SCAC3 |
| 2366 | KIMK | KITTERMAN, KENT INC | | | SCAC3 |
| 2367 | KIML | KILMER, W E | | | SCAC3 |
| 2368 | KIMM | KINGS MILL MESSENGER | | | SCAC3 |
| 2369 | KIMN | KINGMAN TRANSFER COMPANY | | | SCAC3 |
| 2370 | KIMO | KENNEDY INTERNATIONAL MOVERS | | | SCAC3 |
| 2371 | KIMO | KENNEDY INTERNATIONAL MOVERS | | | SCAC4 |
| 2372 | KIMP | KIRBY INLAND MARINE LP | | | SCAC4 |
| 2373 | KIMS | KINETIC MOTORSPORTS | | | SCAC4 |
| 2374 | KIMU | KTL INC | | USA | BIC |
| 2375 | KIMU | KIMBREY ASSOCIATES CC | | | SCAC4 |
| 2376 | KIMX | KIMMINS CONTRACTING CORP. | | | PWRC |
| 2377 | KIMX | KIMMINS CONTRACTING CORP | | | SCAC4 |
| 2378 | KIN | Kinloss FTU | Callsign: Kinloss, | GB | AVCODES |
| 2379 | KIN | Kinloss Flying Training Unit | | | ICAO1 |
| 2380 | KIN | Kintetsu | | J | TRAFFIC |
| 2381 | KINA | KING LUMINAIRE CO INC | | | SCAC4 |
| 2382 | KINB | KING, BRUCE D | | | SCAC3 |
| 2383 | KINB | KLEN INC | | | SCAC4 |
| 2384 | KINC | KING LOGISTICS INC | | | SCAC4 |
| 2385 | KIND | KAIZEN INTERTRADE | | | SCAC4 |
| 2386 | KindsJ | Kinds Härads Järnväg | 1885 - 1902 | S | svenska-lok.se |
| 2387 | KINE | KINNIE-ANNEX CARTAGE CO | | | SCAC3 |
| 2388 | KINE | KINETIC SUPPLY CHAIN SERVICES LLC | | | SCAC4 |
| 2389 | KINGCOAL | King Coal Tours | | USA | TRAFFIC |
| 2390 | KINH | KINDSCHY, DICK | | | SCAC3 |
| 2391 | KINI | KINS TRUCKING | | | SCAC3 |
| 2392 | KINI | KINS TRUCKING | | | SCAC4 |
| 2393 | KINJ | KDL INTERNATIONAL | | | SCAC4 |
| 2394 | KINL | KEVLAUR INDUSTRIES (DIVISION OF A & | | | SCAC4 |
| 2395 | KINM | KINO OIL COMPANY | | | SCAC4 |
| 2396 | KINN | KINSMEN INC | | | SCAC4 |
| 2397 | KINO | KING OCEAN LINES | | | SCAC3 |
| 2398 | KINQ | KING DISTRIBUTION&TRANSFER, INC | | | SCAC3 |
| 2399 | KINQ | KING TRUCKING INC | | | SCAC4 |
| 2400 | KINR | KING TRUCKING SERVICE | | | SCAC3 |
