| 1 | KPLD | KINGPIN LOGISTICS LTD | | | SCAC4 |
| 2 | KPLI | KINLEY PIPELINE COMPANY | | | SCAC3 |
| 3 | KPLK | K P L TRUCKING | | | SCAC4 |
| 4 | KPLM | KEPLEY, MALVIN G | | | SCAC3 |
| 5 | KPLN | KAPLAN TRUCKING INC | | | SCAC3 |
| 6 | KPLO | KRUPP LONRHO GMBH | | | SCAC3 |
| 7 | KPLO | KAPELLEN TRANSPORTATION INC | | | SCAC4 |
| 8 | KPLQ | KAPLAN TRUCKLIN INC | | | SCAC3 |
| 9 | KPLR | KEPLER BROTHERS INC | | | SCAC3 |
| 10 | KPLT | KPL TRUCKING INC | | | SCAC4 |
| 11 | KPLU | K LINE | | | PWRC |
| 12 | KPLU | K Line | | | RSRV |
| 13 | KPLX | Western Resources, Inc. | 7/2000-7/2005 | | NAKINA |
| 14 | KPLX | Agrex, Inc. | added 1/1985; eliminated 1/1988 | | NAKINA |
| 15 | KPLX | Koppel, Inc. | added 10/1979; 1/1980; eliminated 1/1985 | | NAKINA |
| 16 | KPLX | Koppel, Inc. | 1/80; eliminated 1/85 | | NRHS |
| 17 | KPLX | Agrex, Inc. | added 1/85; eliminated 1/88 | | NRHS |
| 18 | KPLX | Western Resources, Inc. | Jul-00 | | NRHS |
| 19 | KPLX | WESTAR ENERGY [WESTERN RESOURCES, INC.; AGREX INC.; KOPPEL INC.] | | | PWRC |
| 20 | KPLX | Koppel (Western Resources) | | | RSRV |
| 21 | KPLX | WESTERN RESOURCES, INC. | | | SCAC4 |
| 22 | KPLX | Koppel (Western Resources) | | USA | TRAFFIC |
| 23 | KPLY | KEEBEE PLAY | | | SCAC4 |
