| 1301 | KECG | KEYYEY CARGO SYSTEM | | | SCAC3 |
| 1302 | KECH | KETCHUM TRUCKING COMPANY | | | SCAC3 |
| 1303 | KECI | KEENE CARRIERS INC | | | SCAC3 |
| 1304 | KECM | KEENAN TRANSIT CO | | | SCAC3 |
| 1305 | KECN | KENCO INC | | | SCAC3 |
| 1306 | KECO | KINGS EXPRESS CORP | | | SCAC3 |
| 1307 | KECP | KESS CORP | | | SCAC3 |
| 1308 | KECQ | KENOSHA CARTAGE | | | SCAC3 |
| 1309 | KECQ | KENCO LOGISTIC SERVICES | | | SCAC4 |
| 1310 | KECR | KETCHER TRUCKING | | | SCAC3 |
| 1311 | KECS | KEENER, C S TRUCKING | | | SCAC3 |
| 1312 | KECS | Kecskeméti kisvasút | | H | TRAFFIC |
| 1313 | KECT | KETTLE CREEK TRANSPORTATION | | | SCAC3 |
| 1314 | KECU | ECO TRADING & SERVICE | | | SCAC4 |
| 1315 | KECX | Kuner-Empson Co. | 7/1937-7/1954; eliminated 10/1956 | | NAKINA |
| 1316 | KECX | Kuner-Empson Co. | 4/38-1/52 | | NRHS |
| 1317 | KECX | *KUNER-EMPSON CO. | | | PWRC |
| 1318 | KECX | *KELLOGG COMPANY | | | PWRC |
| 1319 | KEDD | KEDMA LTD. | | | SCAC3 |
| 1320 | KEDH | KEDASHAW INC | | | SCAC3 |
| 1321 | KEDI | KENNEYS DELIVERY | | | SCAC3 |
| 1322 | KEDK | KENDRICK TRUCKING CORP | | | SCAC3 |
| 1323 | KEDL | KENDALL TRUCKING | | | SCAC3 |
| 1324 | KEDL | KENDALL TRUCKING | | | SCAC4 |
| 1325 | KEDM | KEDNEY MOVING & STORAGE INC | | | SCAC3 |
| 1326 | KEDO | KENS EXPRESS | | | SCAC3 |
| 1327 | KEDR | KEDROWSKI, M J TRUCKING | | | SCAC3 |
| 1328 | KEDT | KENNEDY TRANSPORT | | | SCAC3 |
| 1329 | KEDW | KELLY, DAN WAREHOUSE INC | | | SCAC3 |
| 1330 | KEE | Keystone Air Service | IATA: BZ, Callsign: Keystone, Designator BZ recalled by IATA | CDN | AVCODES |
| 1331 | KEE | Keystone Air Service | Callsign: Keystone, Designator BZ recalled by IATA | CDN | AVCODES |
| 1332 | KEE | Keystone Air Services | IATA: BZ | | ICAO1 |
| 1333 | KEEB | KEENAN BROS INC | | | SCAC3 |
| 1334 | KEEB | KEENER, BRUCE A TRUCKING INC | | | SCAC4 |
| 1335 | KEEC | K & E ENTERPRISES LLC | | | SCAC4 |
| 1336 | KEED | KEENFREIGHT | | | SCAC4 |
| 1337 | KEEE | KEENEY TRUCK LINES INC | | | SCAC3 |
| 1338 | KEEE | KEENEY TRUCK LINES INC | | | SCAC4 |
| 1339 | KEEG | KEESLER TRANSPORT | | | SCAC4 |
| 1340 | KEEI | KENEARL INC | | | SCAC3 |
| 1341 | KEEI | KEELAN TRANSPORT INC | | | SCAC4 |
| 1342 | KEEL | KEENER, LONNIE H | | | SCAC3 |
| 1343 | KEEL | KEELER, JIM ENTERPRISES INC | | | SCAC4 |
| 1344 | KEEM | K & E ENTERPRISES OF SALEM LLC | | | SCAC4 |
| 1345 | KEEN | KEENES TRANSFER | | | SCAC3 |
| 1346 | KEEN | KEENES TRANSFER | | | SCAC4 |
| 1347 | KEEQ | KNEE, RONALD | | | SCAC3 |
| 1348 | KEER | KEELER, FRANK | | | SCAC3 |
| 1349 | KEER | KEETER ENTERPRISES LLC | | | SCAC4 |
| 1350 | KEES | KEESHIN TRANSPORTATION SYS INC | | | PWRC |
| 1351 | KEET | KEEN TRANSPORT INC | | | SCAC3 |
| 1352 | KEET | KEEN TRANSPORT INC | | | SCAC4 |
| 1353 | KEEW | KEENES, WESLEY MOBILE HOME MOVERS | | | SCAC3 |
| 1354 | KEEW | KEE WEST AUTO CARRIERS INC | | | SCAC4 |
| 1355 | KEEY | KEENY, STUART E | | | SCAC3 |
| 1356 | KEFB | KEENAN FREIGHT BROKERAGE INC | | | SCAC3 |
| 1357 | KEFI | KELLEY FUELS INC | | | SCAC4 |
| 1358 | KEFJ | KELLY, FRANK J INC | | | SCAC3 |
| 1359 | KEFL | KELLERS FREIGHT LINE INC | | | SCAC3 |
| 1360 | KEFP | KEYSTONE FOOD PRODUCTS INC | | | SCAC3 |
| 1361 | KEG | Karsdorfer Eisenbahngesellschaft mbH | Karsdorf | D | privat-bahn.de |
| 1362 | KEG | Karsdorfer Eisenbahn-Gesellschaft | | D | TRAFFIC |
| 1363 | KEG | Karsdorfer Eisenbahngesellschaft mbH | | DE | VKM |
| 1364 | KEGD | KEGLEY DAIRY | | | SCAC3 |
| 1365 | KEGE | KENNEDYS GRAIN ELEVATOR INC | | | SCAC3 |
| 1366 | KEGG | KEGG, RICHARD TRUCKING | | | SCAC3 |
| 1367 | KEGH | KEENAN, GLENN HARVEY | | | SCAC3 |
| 1368 | KEGI | KRUEGER TRANSPORTATION INC | | | SCAC4 |
| 1369 | KEGL | KNIGHTS, E G LIMOUSINE LTD | | | SCAC3 |
| 1370 | KEGN | KEG TRANSPORTATION INC | | | SCAC3 |
| 1371 | KEGO | KEENEDY, GEO F INC | | | SCAC3 |
| 1372 | KEGP | KENGRAPHIC INTERIORS INC | | | SCAC3 |
| 1373 | KEGQ | KEEGAN, JAMES P | | | SCAC3 |
| 1374 | KEGQ | KEEGAN, JAMES P CO INC | | | SCAC4 |
| 1375 | KEGS | KEEGS COURIER INC | | | SCAC3 |
| 1376 | KEGY | KNAPP ENERGY INC | | | SCAC4 |
| 1377 | KEHF | KEHLER FARMS LTD | | | SCAC4 |
| 1378 | KEHG | KEHRIG FINE ART | | | SCAC4 |
| 1379 | KEHL | KENT ST HAULAGE | | | SCAC3 |
| 1380 | KEHM | KEAHEYS MOVING & STORAGE | | | SCAC3 |
| 1381 | KEHP | KENNEDY HORSE TRANSPORTATION INC | | | SCAC3 |
| 1382 | KEHQ | KELLY, HENRY TRUCK SERVICE INC | | | SCAC3 |
| 1383 | KEI | Keisei | | J | TRAFFIC |
| 1384 | KEIA | KEITH, ART | | | SCAC3 |
| 1385 | KEIA | KALCO EXPRESS INC | | | SCAC4 |
| 1386 | KEIB | KORNET EXPRESS INC | | | SCAC4 |
| 1387 | KEIBS | Keisei Bus System | | J | TRAFFIC |
| 1388 | KEID | KINGS EAGLE INC | | | SCAC4 |
| 1389 | KEIG | KEILHAUER | | | SCAC4 |
| 1390 | KEIH | KEI LOGISTICS INC | | | SCAC4 |
| 1391 | KEIH | Keihan | | J | TRAFFIC |
| 1392 | KEII | KANE, E I INTERMODAL TRANSPORT INC | | | SCAC3 |
| 1393 | KEII | K E I TRANSPORTATION LLC | | | SCAC4 |
| 1394 | KEIJ | KUKAMONGA EXPRESS INC | | | SCAC4 |
| 1395 | KEIK | KLEIN TRUCKING | | | SCAC3 |
| 1396 | KEIK | KALCO EXPRESS INC | | | SCAC4 |
| 1397 | KEIKYU | Keikyu Corporation | | J | TRAFFIC |
| 1398 | KEIKYUB | Keihin Express Bus Company | Owner: Keikyu Corporation | J | TRAFFIC |
| 1399 | KEIKYUH | Haneda Keikyu Bus Company | Owned by the Keikyu Corporation | J | TRAFFIC |
| 1400 | KEIKYUT | Keikyu Tourist Bus Limited | | J | TRAFFIC |
