| 1 | KCC | Kansas City Connecting R.R. Co. | 1/1975-1/1980 | | NAKINA |
| 2 | KCC | Kansas City Connecting R.R. Co. | 1/75-1/80 | | NRHS |
| 3 | KCC | KANSAS CITY CONNECTING RAILROAD CO. | | | PWRC |
| 4 | KCCI | K C CARTAGE INC | | | SCAC3 |
| 5 | KCCI | K C TRANSPORTATION INC | | | SCAC4 |
| 6 | KCCL | KCC TRANSPORT SYSTEMS INC | | | SCAC3 |
| 7 | KCCL | KCC TRANSPORT SYSTEMS INC | | | SCAC4 |
| 8 | KCCN | KUNSHEK CHAT & COAL INC | | | SCAC3 |
| 9 | KCCP | KINDER CARTAGE CORP | | | SCAC3 |
| 10 | KCCP | K C COMPANY | | | SCAC4 |
| 11 | KCCQ | KANSAS CITY COMMERCIAL CARTAGE CO I | | | SCAC3 |
| 12 | KCCQ | K & C CONTRACTORS INC | | | SCAC4 |
| 13 | KCCS | KANSAS CITY COLD STORAGE & ICE | | | SCAC4 |
| 14 | KCCX | Kennecott Utah Copper Corp. | added 4/1991; 1/1994-7/2005 | | NAKINA |
| 15 | KCCX | Kennecott Corp. | added 4/1981; eliminated 4/1991 | | NAKINA |
| 16 | KCCX | Kennecott Copper Corp. | added 4/1970; 4/1970-1/1980; eliminated 4/1981 | | NAKINA |
| 17 | KCCX | Kimberly-Clark Co. | 7/1937-4/1961 | | NAKINA |
| 18 | KCCX | Kimberly-Clark Corp. | 7/1930-7/1935 | | NAKINA |
| 19 | KCCX | Kimberly-Clark Co. | 4/38-4/61 | | NRHS |
| 20 | KCCX | Kennecott Copper Corp. | added 4/70; 4/70-1/80; eliminated 4/81 | | NRHS |
| 21 | KCCX | Kennecott Corp. | added 4/81; eliminated 4/91 | | NRHS |
| 22 | KCCX | Kennecott Utah Copper Corp. | added 4/91; 1/94-7/2000 | | NRHS |
| 23 | KCCX | *KIMBERLY-CLARK CO. | | | PWRC |
| 24 | KCCX | +KENNECOTT UTAH COPPER CORPORATION | | | PWRC |
| 25 | KCCX | Kennecott Utah Copper Corporation | | | RSRV |
| 26 | KCCX | KENNECOTT UTAH COPPER CORPORATION | | | SCAC4 |
| 27 | KCCX | Kennecott Copper Corp. | | USA | TRAFFIC |
| 28 | KCCY | KDC CONSTRUCTION COMPANY | | | SCAC4 |
| 29 | KCCZ | KAISER CEMENT COMPANY | | | PWRC |
