ABS
| Alabama Southern Railroad | 3 |
ATSF
| Atchison Topeka & Santa Fe | 2 |
BNSF
| BNSF Railway | 1 |
CCKX
| CCKX Incorporated | 4 |
CN
| Canadian National Railways | 2 |
CSS
| Chicago South Shore And South Bend | 45 |
DODX
| Department Of Defense | 10 |
DUKX
| Dupps Company | 1 |
EJE
| Elgin Joliet and Eastern | 5 |
GBRX
| Greenbrier Leasing Corporation | 4 |
LMIC
| Lake Michigan & Indiana Railroad | 29 |
MP
| Missouri Pacific | 51 |
OTRX
| On-Track Railway Services Limited | 1 |
PGR
| Progressive Rail, Inc | 2 |
PW
| Providence and Worcester | 3 |
RJCM
| R.J. Corman Railroad Company/ Memphis Li | 1 |
SP
| Southern Pacific | 36 |
TTJX
| TTX Company-Bulkhead Flats | 56 |
TTMX
| TTX Company | 7 |
UP
| Union Pacific Railroad Company | 260 |
VRCX
| Vortex Recycling | 2 |
WC
| Wisconsin Central | 5 |
YARR
| Youngstown and Austintown Railroad | 4 |