3-B North District (O)  |
| 3-B South District (O,R) |
| Aberdeen Subdivision (R,O) |
| AGS North District (O) |
| AGS South District (O) |
| Albany District (O) |
| Altavista District (O) |
| Amboy Secondary (R) |
| Amory Subdivision (R) |
| Anniston District (O) |
| Appalachia District (O) |
| Artesia Subdivision (R) |
| Asheville District Asheville to Flatrock (O) |
| Asheville District Asheville to Sylva (O) |
| Asheville District Salisbury to Murphy Jct (O) |
| Ashmore Secondary (O) |
| Atlanta North District (O) |
| Atlanta South District (O) |
| Atlantic City Line (R) |
| Augusta District (O) |
| Autauga Creek District (O) |
| Baltimore Terminal (R) |
| Barr Subdivision (R) |
| Bay Ridge Branch (R) |
| Beardstown Subdivision (R) |
| Beesleys Point Secondary (R) |
| Belt Line Branch (R) |
| Belton Subdivision (R) |
| Bergen County Line (R) |
| Bergen Subdivision (R) |
| Berry Branch (O) |
| Bessemer Subdivision (R) |
| Big Creek Branch (O) |
| Binghamton Terminal (R) |
| Bloomington District (O) |
| Blue Ridge District Crewe to Roanoke (O) |
| Bordentown Secondary (R) |
| Boyles Terminal (R) |
| Brookfield Subdivision (R,O) |
| Brooklyn District (O) |
| Brown Running Track (O) |
| Brunswick (CSXT) Subdivision (R) |
| Brunswick District (NS) (O) |
| Buchanan Branch (O) |
| Buckeye Branch (O) |
| Buffalo Consolidated Terminal (O) |
| Buffalo Line (NS) (O) |
| Buffalo Line (NS) (O) |
| Buffalo Terminal (R) |
| Cairo Subdivision (O) |
| Camak (CSXT) Subdivision (R) |
| Camak District (NS) (O) |
| Canadian Main Line (R) |
| Capital Alexandria Extension (R) |
| Capital Subdivision (R) |
| Cedartown District (O) |
| Cement Secondary (O) |
| Centralia Subdivision (R) |
| Central of Georgia District (O) |
| Central Subdivision (O) |
| C & F Secondary (O) |
| Charleston District Charleston to Columbia (O) |
| Charleston District Hasskamp to Kingville (O) |
| Charleston District Tirzah to Catawba Jct (O) |
| Charleston Subdivision (R) |
| Charlotte District Bowlin to Gebo (O) |
| Charlotte District Salisbury to Greenville (O) |
| Charlotte District Spartanburg to Campobello (O) |
| Charlotte District Washburn to Kings Creek (O) |
| Charlotte District Yadkin Jct to Albemarle (O) |
| Charlotte Subdivision (R) |
| Chattanooga Subdivision (R) |
| Chemical Coast Secondary (R) |
| Chesapeake Western Elkton to Dayton (O) |
| Chesapeake Western Harrisonburg to Bowman (O) |
| Chesapeake Western Harrisonburg to Pleasant Valley (O) |
| Chester Secondary (R) |
| Chicago (AMTK) Subdivision (R) |
| Chicago (CN) Subdivision (R) |
| Chicago District (O) |
| Chicago Line (O) |
| Chillicothe Subdivision (R) |
| Christiansburg District West Roanoke to Bluefield (O) |
| Cincinnati District (R,O) |
| Cincinnati Terminal (O,R) |
| City Point Branch (O) |
| Clairton Branch (R) |
| Cleveland District (O) |
| Cleveland Line (O) |
| Cleveland Short Line (R) |
| Cleveland Terminal (R) |
| Clinch Valley District (O) |
| Clinch Valley Extension (O) |
| Cloverdale Branch (O) |
| Clover Spur (O) |
| CN&L Subdivision (R) |
| Cohutta Subdivision (O) |
| Columbia District Charlotte to Columbia (O) |
| Columbia District Columbia to Augusta (O) |
| Columbia District Columbia to Beaumont (O) |
| Columbia District Columbia to Edmund (O) |
| Columbia District Prosperity to Conrad (O) |
| Columbia Secondary (O) |
| Columbia Subdivision (R) |
| Columbus District (O) |
| Columbus District (O) |
| Columbus Line (R) |
| Conemaugh Line (O) |
| Corning Secondary (O) |
| Crawfordsville Branch (R) |
| Creston Subdivision (R) |
| CR&I Ind Track (O) |
| Curtis Bay Branch (R) |
| Dale Secondary (O) |
| Danville District Glenn to Carrboro (O) |
| Danville District Greensboro to Cumnock West (O) |
| Danville District Greensboro to Fetner (O) |
| Danville District High Point to Asheboro (O) |
| Danville District Montview to Salisbury (O) |
| Danville District Oxford to East Durham (O) |
| Danville District Pomona to Rural Hall (O) |
| Danville District Stokesland to Spray (O) |
| Danville District Winston-Salem to Charlotte (O) |
| Dayton District (O) |
| Decatur (CSXT) Subdivision (O) |
| Delair Branch (R) |
| Delmarva Secondary (R,O) |
| Demopolis District (O) |
| Des Moines Subdivision (R) |
| Des Moines Terminal (R) |
| Detroit District (O) |
| Detroit Line (R,O) |
| Detroit Subdivision (R,O) |
| Dismal Creek Branch (O) |
| Dry Fork Branch (O) |
| Dublin District (O) |
| Durham District Kinney Yard to End Of Track (O) |
| East Carolina Bus Unit Chocowinity to New Bern (O) |
| East Carolina Bus Unit Goldsboro to Fetner (O) |
| East Carolina Bus Unit Havelock to Marine Jct (O) |
| East Carolina Bus Unit Lee Creek to Chocowinity (O) |
| East Carolina Bus Unit Morehead City to Goldsboro (O) |
| East Carolina Bus Unit Raleigh to Cumnock (O) |
| East Carolina Bus Unit Varina to Fayetteville (O) |
| East End District (O) |
| Eastover Subdivision (R) |
| Eatonton District (O) |
| Ellsworth Secondary (O) |
| Erie West Subdivision (R) |
| Evansville Branch (O) |
| Fairbanks District (O) |
| Fairmont Subdivision (R) |
| First District CNO&TP (O) |
| Fort Wayne Line (O) |
| Fort Wayne Subdivision (R) |
| Fostoria District (O) |
| Frankfort Branch-District (O) |
| Franklin District (O) |
| Freight Main Line (R) |
| Freight Main Line South (R) |
| Gilbert Branch (O) |
| Gilman Subdivision (R) |
| Gladstone Branch (R) |
| Greenville District Anderson to West Union (O) |
| Greenville District C&G Jct to Piedmont (O) |
| Greenville District Donaldson Jct to Michelin (O) |
| Greenville District Greenville to Inman Yard (O) |
| Greenville District Lula to Center (O) |
| Greenville Subdivision (R) |
| Greenville Subdivision (R) |
| Griffin District (O) |
| Guyandot River Branch (O) |
| Hagerstown District (O) |
| Hagerstown District Town to Shenandoah (O) |
| Hamlet Subdivision (R) |
| Hannibal Subdivision (R) |
| Harrisburg Line (O) |
| H Line (O) |
| Hudson Secondary (R) |
| Hunter Connector (R) |
| Huntington District (O) |
| Huron Branch (O) |
| IHB Main Line (R) |
| Illinois East Subdivision (R) |
| Illinois Transfer Subdivision (R) |
| Indianapolis Line (R) |
| Indianapolis Terminal (R) |
| Indian River Secondary (R) |
| Ithaca Secondary (R) |
| Jacksonville Terminal (R) |
| James River Subdivision (R) |
| Jefferson City Subdivision (R) |
| Kankakee Branch (O) |
| Kankakee Line (R,O) |
| Kansas City District (O) |
| KD Subdivision (R) |
| Kenova District (O) |
| Kenton Line Subdivision (R) |
| Keystone Branch (NS) (O) |
| Keystone Corridor (R) |
| Kingsport Subdivision (R) |
| Knoxville District BL Line (O) |
| Knoxville District Bristol Line (O) |
| Knoxville District Coster Line (O) |
| Knoxville District Jellico Line (O) |
| Knoxville District K&A Line (O) |
| Knoxville District Middlesboro Line (O) |
| Knoxville District Oakdale Line (O) |
| Knoxville District River Line (O) |
| Knoxville District West End (O) |
| Koppel Secondary (O) |
| Krannert District (O) |
| Lafayette District (O) |
| Lake Erie District (O) |
| Lakeshore Subdivision (R) |
| Lehigh Line (O,R) |
| Lehigh Secondary (O) |
| Lenore Branch (O) |
| Lima (CFE) Subdivision (R) |
| Lima District (O) |
| Lincoln Secondary (R) |
| Louisville District (NS) Subdivision (O) |
| Louisville District (PAL) Subdivision (R) |
| Loveridge Secondary (O) |
| Lurgan Branch (O) |
| MacArthur Bridge Subdivision (R) |
| Macon District (O) |
| Madison District (O) |
| Magnolia Subdivision (R) |
| Main Line (R) |
| Main Line (WNYP) (R) |
| Main Tracks (KCTL) Subdivision (R) |
| Manor Branch (O) |
| Mansfield Branch (O) |
| Marceline Subdivision (O,R) |
| Marion Branch (O) |
| McComb Subdivision (R) |
| McCormick Subdivision (R) |
| Meadville Line (O) |
| Memphis District East End (O) |
| Memphis District West End (O) |
| Merchants Subdivision (R) |
| Meridian Subdivision (R) |
| M&G District (O) |
| Michigan Line (R) |
| Middletown Branch (R) |
| Midland Subdivision (R) |
| Miracle Run Branch (O) |
| M&M Subdivision (R) |
| Mon Line (NS) (O) |
| Monon Subdivision (R) |
| Montclair-Boonton Line (R) |
| Monterey Branch (O) |
| Moores District (O) |
| Morri Branch (O) |
| Morristown Line (R) |
| Morrisville Connecting Trk (O) |
| Morrisville Line (CSAO) (R) |
| Morrisville Line (NS) (O) |
| National Docks Branch (R) |
| Navair District (O) |
| NA/West End District (O) |
| Neilson IT (O) |
| New Castle District (O) |
| New Castle Secondary (O) |
| New Castle Subdivision (R) |
| New Holland Secondary (O) |
| New Jersey Subdivision (R) |
| New Orleans Terminal (O) |
| New River Subdivision (O) |
| Niagara Branch (R) |
| NO&NE District (O) |
| Norcross District (O) |
| Norfolk District Canal Drive to Crewe (O) |
| Norfolk Terminal (O) |
| Norristown Line (NS) (O) |
| North Belt Subdivision (R) |
| Northeast Corridor (DE-MD-NJ-PA) (R) |
| Northern Branch (R) |
| North Jersey Coast Line (R) |
| North Wateree Spur (R) |
| North Yard Branch (R) |
| Oasis Subdivision (R) |
| Ottumwa (BNSF) Subdivision (R) |
| Pana Subdivision (R) |
| Pascack Valley Line (R) |
| Passaic and Harsimus Line (R) |
| Pemberton Industrial Track (R) |
| Penns Grove Secondary (R) |
| Pensacola Subdivision (R) |
| Peoria Terminal Subdivision (R) |
| Petersburg Old Line (O) |
| Philadelphia Subdivision (R) |
| Piney Creek Subdivision (R) |
| Pittsburgh Line (NS) (O) |
| Pocahontas District (O) |
| Pomeroy Subdivision (R) |
| Port Jervis Line (R,O) |
| Portland Secondary (O) |
| Port Perry Branch (O) |
| Port Reading Secondary (R) |
| Port Road Branch (O) |
| Pottsville Branch (O) |
| Prattville Branch (R) |
| Princeton-Deepwater District (O,R) |
| Pulaski District Walton to Ford (O) |
| Raritan Valley Line (R) |
| Reading Line (O) |
| RF&P Subdivision (R) |
| Richmond District Burkeville to West Point (O) |
| River Line (R) |
| River Line (O) |
| Roanoke District Junior Avenue to Roanoke (O) |
| Roanoke Terminal (O) |
| Rockport Branch (O) |
| Rockwell Subdivision (R) |
| Royalton Branch (O) |
| Salem Subdivision (R) |
| Sandusky District (O) |
| Sanford Subdivision (R) |
| Savannah District (O) |
| Second District CNO&TP (O) |
| Shellpot Secondary (O) |
| Shippensburg Secondary (O) |
| Shore Line Subdivision (R) |
| Shreveport Terminal (R) |
| South Bend Subdivision (R) |
| Southern-East District (O) |
| Southern Secondary (R) |
| Southern Tier Line (CNYK) (R) |
| Southern Tier Line (NS) (O) |
| Southern-West District (O) |
| South Fork Secondary (O) |
| Southwest Subdivision (R) |
| Springfield-Hannibal District (O) |
| St Charles Branch (O) |
| Sterling Secondary Subdivision (R) |
| St Joseph Subdivision (R,O) |
| St Louis (CN) Subdivision (R) |
| St Louis District (O) |
| St. Louis Line (R) |
| Sunbury Subdivision (R) |
| Thayer South Subdivision (R) |
| Third District CNO&TP (O) |
| Thomaston District (O) |
| Tinker Creek Connection (O) |
| Toledo District (O) |
| Toledo Subdivision (R) |
| Toledo Terminal (R) |
| Trenton Line (R) |
| Tug Fork Branch (O) |
| Urbana Subdivision (R) |
| Valdosta District (O) |
| V&C Belt District (O) |
| Vicksburg Subdivision (R) |
| Villa Grove Subdivision (R) |
| Vineland Secondary (R) |
| Walden Secondary (R) |
| Washington District Alexandria to Montview (O) |
| Washington District Calverton to Cassanova (O) |
| Washington District Manassas to Edinburg (O) |
| Washington Terminal (R) |
| Wayne Branch (O) |
| Waynesburg Southern Subdivision (O) |
| Weirton Secondary (O) |
| West Belt Subdivision (R) |
| Western Branch (O) |
| West Sub Subdivision (R) |
| West Tennessee Main (R) |
| West Virginia Secondary (O,R) |
| Whitethorne District (O) |
| Winding Gulf Branch (O) |
| Winston-Salem District Broadway to Winston-Salem (O) |
| York Secondary (O) |
| Youngstown Line (O) |
