| 1 | NYO&W | NEW YORK, ONTARIO & WESTERN | | | PWRC |
| 2 | NYOG | New York & Ogdensburg Ry. Co., Inc. | added 1/1999; 7/2000-7/2005; eliminated 4/2006 | | NAKINA |
| 3 | NYOG | New York & Ogdensburg Ry. Co., Inc. | added 1/99; 7/2000 | | NRHS |
| 4 | NYOG | NEW YORK & OGDENSBURG RAILWAY CO. | | | PWRC |
| 5 | NYOG | New York and Ogdensburg Railway | | | RSRV |
| 6 | NYOG | NEW YORK & OGDENSBURG RAILWAY COMPA | | | SCAC4 |
| 7 | NYOR | NORTHSTAR YOUTH ORG | | | SCAC4 |
| 8 | NYOT | NEW YORK ONE (1) TERMINAL INC | | | SCAC4 |
| 9 | NYOW | | | | TRAFFIC |
