| CSX Transporation | Berkshire Subdivsion | 42.30858 | -72.90154 | 30 |
| CSX Transporation | Boston Subdivsion | 42.33195 | -71.60142 | 35 |
| CSX Transporation | Nashua Subdivision | 42.27284 | -71.8686 | 100 |
| CSX Transporation | Portland Subdivision | 42.27284 | -71.8686 | 100 |
| CSX Transporation | Worcester Subdivision | 42.27284 | -71.8686 | 100 |
| Amtrak | Main Line (Mill River to Springfield) | 42.09099 | -72.59667 | 5 |
| Amtrak | Main Line (New Haven to Boston) | 42.14803 | -71.22063 | 16 |
| Bay Colony Railroad | Operations | 42.15549 | -71.44316 | 7 |
| Cape Cod Central Railroad | Operations | 41.72 | -70.4 | 30 |
| Berkshire Scenic Railway | Railroad Museum | 42.38059 | -73.21443 | 25 |
| Grafton and Upton Railroad | Operations | 42.17099 | -71.60977 | 6 |
| Housatonic Railroad | Operations | 42.25744 | -73.27557 | 20 |
| Massachusetts Central Railroad | Operations | 42.30519 | -72.20715 | 12 |
| Massachusetts Coastal Railroad | Framingham Subdivision | 42.15266 | -71.35433 | 10 |
| Massachusetts Coastal Railroad | Middleboro Subdivision | 41.87388 | -70.98997 | 5 |
| Massachusetts Coastal Railroad | Operations | 41.8 | -70.32 | 30 |
| Massachusetts Bay Transportation Authority | Commuter East | 42.27284 | -71.8686 | 100 |
| Massachusetts Bay Transportation Authority | Commuter West | 42.27284 | -71.8686 | 100 |
| Massachusetts Bay Transportation Authority | Boston Terminal | 42.27284 | -71.8686 | 100 |
| Massachusetts Bay Transportation Authority | Old Colony | 42.27284 | -71.8686 | 100 |
| Massachusetts Bay Transportation Authority | Northeast Corridor | 42.27284 | -71.8686 | 100 |
| Massachusetts Bay Transportation Authority | Worcester Main Line | 42.27284 | -71.8686 | 100 |
| Massachusetts Bay Transportation Authority | Dorchester Branch | 42.27284 | -71.8686 | 100 |
| Massachusetts Bay Transportation Authority | Rail and Yard Operations | 42.29722 | -71.12153 | 25 |
| Massachusetts Bay Transportation Authority | Subway System | 42.35877 | -71.05795 | 5 |
| New England Central Railroad | Palmer Subdivision | 42.37255 | -72.26609 | 24 |
| Berkshire and Eastern | Conn River Main Line | 42.29854 | -72.62688 | 20 |
| Berkshire and Eastern | Freight Main Line | 42.27284 | -71.8686 | 100 |
| Berkshire and Eastern | East Deerfield Yard | 42.56675 | -72.56537 | 1 |
| Pioneer Valley Railroad | Easthampton Branch | 42.26636 | -72.67363 | 5 |
| Pioneer Valley Railroad | Holyoke Branch | 42.20355 | -72.61227 | 5 |
| Providence and Worcester | Operations | 42.05225 | -71.59966 | 20 |
