| 1 | NKCK | NICKELS CARTAGE CO LTD | | | SCAC4 |
| 2 | NKCL | NIPPO KISEN CO LTD | | | SCAC3 |
| 3 | NKCM | NAKAMOTO, C MOVERS | | | SCAC3 |
| 4 | NKCM | NOBEK B V | | | SCAC4 |
| 5 | NKCN | N K C TRANSPORTATION LLC | | | SCAC4 |
| 6 | NKCO | NIELSEN, KNUD CO INC | | | SCAC3 |
| 7 | NKCR | Nebraska, Kansas & Colorado RailNet, Inc. | added 1/1999; 7/2000-7/2005 | | NAKINA |
| 8 | NKCR | Nebraska, Kansas & Colorado RailNet, Inc. | added 1/99; 7/2000 | | NRHS |
| 9 | NKCR | NEBRASKA, KANSAS & COLORADO RAILNET INC | | | PWRC |
| 10 | NKCR | Nebraska, Kansas and Colorado Railnet | | | RSRV |
| 11 | NKCR | NEBRASKA KANSAS & COLORADO RAILNET | | | SCAC4 |
| 12 | NKCU | NINGXIA KING CHEMICAL CO LTD | | | SCAC4 |
