AA
| Ann Arbor | 1 |
ATEX
| Asplundh Tree Expert Co Railroad Division | 5 |
ATSF
| Atchison Topeka & Santa Fe | 1 |
BLOL
| Bloomer Shippers Connecting Railroad Co. | 2 |
BN
| Burlington Northern | 1 |
BNSF
| BNSF Railway | 17 |
CC
| Chicago Central & Pacific | 4 |
CN
| Canadian National Railways | 31 |
CNA
| Canadian National Railways | 2 |
CNW
| Chicago & Northwestern | 89 |
CP
| Canadian Pacific Railway | 33 |
CR
| Conrail | 7 |
CWRX
| CWR TRANSPORTATION CO. | 3 |
DME
| Dakota, Minnesota and Eastern | 9 |
FTSX
| Fairmont Tamper | 5 |
HMIX
| Henkels and McCoy Inc | 16 |
HZGX
| Herzog Contracting Corporation | 16 |
IC
| Illinois Central | 1 |
ICE
| Iowa Chicago and Eastern | 8 |
ICG
| Illinois Central Gulf | 1 |
IHB
| Indiana Harbor Belt | 1 |
IR
| Illinois Railnet | 2 |
LMIX
| Loram Maintenance of Way Inc. | 22 |
METX
| METRA | 3 |
MNCX
| Minnesota Corn Processors Incorporated | 1 |
MP
| Missouri Pacific | 29 |
NS
| Norfolk Southern | 21 |
NW
| Norfolk & Western | 5 |
OMLX
| Omnitrax | 3 |
PRR
| Pennsylvania Railroad | 1 |
RELA
| RELA | 1 |
RGAX
| RGAX | 5 |
RJCR
| RJ Corman | 34 |
SOO
| Soo Line | 9 |
SOU
| Southern | 4 |
SP
| Southern Pacific | 21 |
SRS
| Sperry Rail Service | 1 |
TPW
| Toledo Peoria & Western | 7 |
UP
| Union Pacific Railroad Company | 234 |