Last update 4 August 2024
Please select a starting letter from the links below:
| ELR | Line name | Mileages | Datum | Notes |
|---|---|---|---|---|
| NAB | Neath and Brecon Line | 0.00 - 33.05 | Neath And Brecon Junction | |
| NAC | Newton and Carmyle Line | 0.34 - 3.00 ?? | Newton | Now NWC |
| NAI | Nailsworth Branch | 101.42 - 107.20 | Derby | |
| NAJ | Neasden South to Aynho Junction | see separate portions | ||
| NAJ1 | Northolt and Neasden Line | 0.00 - 6.31 | Northolt Junction | Formerly NNL |
| NAJ2 | Northolt and Ashendon Line | 0.00 - 33.69 | Northolt Junction | Formerly NAL |
| NAJ3 | Ashendon and Aynho Line | 0.00 - 18.29 | Ashendon Junction | Formerly AAL |
| NAL | Northolt and Ashendon Line | 0.00 - 34.02 | Northolt Junction | Now NAJ2 |
| NAN | Nantgarw Branch | 0.00 - 2.35 | Nantgarw Branch Junction | 0.39 - 2.35 formerly CRY |
| NAT | Nantlle Tramway | see separate portions | ||
| NAT1 | Pen-y-Groes to Nantlle | 0.00 - 1.34 | Pen-y-Groes | |
| NAT2 | Nantlle to Nantlle Sidings | 1.34 - 2.13 | Pen-y-Groes | |
| NAV | North Acton to Viaduct Junction Line | 0.00 - 2.22 | North Acton Junction | Line remiled: originally 1.67 - 4.09 ex Ealing Broadway. Now LUL Central Line |
| NAY | Norwich and Yarmouth Line | 5.73 - 18.29 | Norwich | 0.29 - 5.73 now NOL |
| NBB | New Beckenham to Beckenham Junction Curve | 9.51 - 10.04 | Charing Cross | |
| NBE | Bathgate Branch | 24.77 - 35.21 | High Street via Airdrie | |
| NBK | North Berwick Branch | 17.79 - 22.25 | Edinburgh Waverley | |
| NBN | Newbiggin Branch | 4.39 - 5.42 | Bedlington Junction | |
| NBS | Norton Bridge and Stone Line | 0.00 - 3.56 | Stone Junction | Replaced in 2016 by new NBS and NBS1 |
| NBS | Norton Bridge and Stone Line | 0.00 - 4.06 | Stone Junction | New code from 2016 partly replacing original NBS |
| NBS1 | Norton Bridge East Chord | 2.51 - 4.15 | Stone Junction | New code from 2016 partly replacing original NBS |
| NBZ | Patent Nut and Bolt Company's Works Line | 5.35 - 5.60 | George Street Junction | |
| NCD | Northampton Central Materials Depot | 4.57 - 5.13 | Blisworth | |
| NCL | North Cornwall Line | 209.66 - 259.44 | Waterloo | |
| NCM | Newark Curve | 17.21 - 17.65/ 0.00 - 0.44 | Nottingham/Newark North Curve Junction | |
| NCP | Northampton Castle to Peterborough Bay Line | 0.47 - 0.62 | Duston West Junction | |
| NCS | Courthill Loop | 6.21 - 6.43 | Charing Cross | |
| NCW | Norwich Wensum Curve | 0.00 - 0.28 | Junction with LTN2 | |
| NCZ | North Crofty Branch | 312.23 - 312.71 | Paddington via Box and Plymouth Millbay (reverse) | |
| NDC | Northumberland Central Line | 0.00 - 13.04 | Scotsgap | |
| NDE | Niddrie North Junction to Bilston Glen Branch | see separate portions | ||
| NDE1 | Niddrie North Junction to Millerhill South Junction | 3.36 - 5.79 | Edinburgh Waverley via Portobello Junction | |
| NDE2 | Millerhill South Junction to Bilston Glen Branch Railtrack boundary | 5.79 - 10.33 + colliery | Edinburgh Waverley via Portobello Junction | |
| NDK | Northumberland Dock Branch | 0.00 - 1.28 | Tyne Improvement Commission No 1 Junction | |
| NDL | Newbury and Didcot Line | 0.00 - 17.49 | Newbury East Junction | |
| NDN | North Devon Line | 179.26 - 222.33 | Waterloo | |
| NDO | North Docks Branch | 34.75 - 35.55 | Manchester Victoria | |
| NDP | Niddrie West Loop | 6.30 - 6.69 | Haymarket Central Junction | Niddrie West Junction to Niddrie North Junction |
| NDR | Niddrie East Loop | 0.00 - 0.31 | Niddrie North Junction with Lothian Lines | Niddrie North Junction to Niddrie South Junction |
| NDW | Niddrie West Junction to Wanton Walls Junction | 6.33 - 7.28 | Haymarket Central Junction | |
| NDZ | North Dock Line | 0.00 - 0.27 | Harbour Branch Junction | |
| NEB | Neath Canalside Branch | 18.43 - 19.61 | R&SB Junction | |
| NEC | Newcastle and Carlisle Line | see separate portions | ||
| NEC1 | Newcastle King Edward Bridge South Junction to Blaydon Junction | 0.48 - 5.28 | High Level Bridge Junction | |
| NEC2 | Millage change to Carlisle South Junction | 3.78 - 60.03 | Newcastle via Elswick | |
| NEJ | Neath Junction | 208.27 - 208.71/ 40.68 - 41.32 | Paddington via Stroud/Taff Vale Extension Junction | |
| NEK | Sunderland to South Hylton | 0.00 - 3.20 | Sunderland South End Junction | ELR derived from GEOGIS clerk's initials |
| NEL | Neath Loop/Jersey Marine North Loop | 0.00 - 0.48 | Jersey Marine North Junction | |
| NEM | Newham Branch | Now NWM | ||
| NEM | North Electric Main Line (Plains to Helensburgh Central) | see separate portions | ||
| NEM1 | Bathgate to Drumgelloch | 11.60 - ≈25.10 | High Street | |
| NEM2 | High Street to Drumgelloch | 0.00 - 12.23 | High Street | |
| NEM3 | High Street to Knightswood South Junction | 0.00 - 4.63 | High Street | |
| NEM4 | Knightswood South Junction to Knightswood North Junction | 0.00 - 0.74 | Knightswood South Junction | |
| NEM5 | Knightswood North Junction to Bowling | 5.67 - 13.40 | Glasgow Queen Street High Level via Maryhill | |
| NEM6 | Bowling to Dumbarton East | 113.46 - 116.00 | Carlisle via Rutherglen, Glasgow Central Low Level and Old Kilpatrick | |
| NEM7 | Dumbarton mileage change to Hellensburgh Central | 15.51 - 24.31 | Glasgow Queen Street High Level via Cowlairs and Maryhill | |
| NEN | Newburn Branch | see separate portions | ||
| NEN1 | Newcastle West Junction to Scotswood Junction | 0.11 - 2.66 | Newcastle | |
| NEN2 | Scotswood Junction to Newburn | ?? - ?? | Newcastle? | |
| NES | Nesfield Branch | 149.31 - 150.67 | St Pancras via Leicester, Toton and Barrow Hill | |
| NET | Netherton Branch/Withymoor Branch | 0.00 - 0.60 | Windmill End Junction | |
| NEW | Newquay Branch | 282.16 - 302.51 | Paddington via Box and Plymouth Millbay (reverse) | |
| NEZ | Nelson Goods Branch | 0.00 - 0.11 | Llancaiach Junction | Sidings at Llancaiach, now part of NLN |
| NFD | Newfields Branch | 0.00 - 0.69 | Newfields Junction | |
| NFE | Norwood Junction to Epsom Downs Line | 8.67 - 18.78 | London Bridge via West Croydon | |
| NFES | See NFE; shown on West Croydon station footbridge in error see this image | |||
| NFK | Newhaven Fork | 0.00 - 0.17 | Bonnington North Junction | |
| NFL | Dunston Extension | ?? - ?? | ||
| NFT | Northfleet Yard to Cement Works | 21.45 - ≈23.59 | Charing Cross | |
| NGC | Netherfield Junction to Colwick Fork | 0.00 - 0.61 | Netherfield Junction | Formerly NGC1 |
| NGC | Netherfield to Gedling Colliery Curve | see separate portions | ||
| NGC1 | Netherfield Junction to Colwick Fork | 0.00 - 0.61 | Netherfield Junction | Now NGC |
| NGC2 | Rectory Junction to Colwick | 123.72 - 124.28 | Kings Cross | Now part of DEX |
| NGD | Newcastle Goods Lines | 0.00 - 0.25 | London Road Junction | |
| NGJ | Newton-Le-Willows to Golborne Junction Curve (Parkside West Curve) | 0.00 - 0.53 | Newton-Le-Willows Junction | |
| NGL | New Guildford Line (Hampton Court Junction to Guildford) | 13.21 - 29.59 | Waterloo via Cobham | |
| NGS | Nottingham Goods Station Line | 0.00 - 0.36 | Trent Lane East Junction | |
| NHB | Newhaven Harbour Branch | 56.55 - 57.54 | London Bridge via Redhill | |
| NHK | New Hucknall Branch | 0.00 - 0.41 | New Hucknall Sidings Box | To New Hucknall Colliery from GC main line between Kirkby Bentinck and Tibshelf Town |
| NHL | Nottingham High Level Line | 125.25 - 128.25 | Kings Cross | |
| NHM | Neville Hill Maintenance Depot Departure Sidings | 18.09 - 19.06 | Selby South Junction | |
| NHM2 | Depot Reception | 18.01 - 19.20 | Selby South Junction | |
| NHM3 | Neville Hill Sidings | 18.32 - 18.67 | Selby South Junction | |
| NHM4 | Neville Hill Sidings | 18.33 - 18.69 | Selby South Junction | |
| NHP | New Holland Pier | 106.56 - 107.13/ 0.00 - 0.37 | Manchester London Road via Sheffield/junction with BAR | |
| NHR | Newquay Harbour Line | 302.31 - 303.41 | Paddington via Box and Plymouth Millbay (reverse) | |
| NHS | Newhouse Branch | 8.72 - 12.02 | Rutherglen East Junction | Gartness Junction, Airdrie to Newhouse, unclear whether this includes Newhouse to Lanridge |
| NHT | New Hucknall Colliery Line | see separate portions | ||
| NHT1 | Blackwell North Junction to Blackwell East Junction | 0.00 - 0.31 | Blackwell North Junction | |
| NHT2 | Blackwell East Junction to New Hucknall Colliery | 137.24 - 139.77 | St Pancras | |
| NHT3 | New Hucknall Colliery BR Junction to New Hucknall Sidings | 0.00 - 0.60 | Duplicate of NHK | |
| NJD | Norwood Junction to Dunston East Line | 0.00 - 0.54 | Norwood Junction | |
| NJM | Needingworth Junction to March via Chatteris Line | 7.36 - 23.62 | Huntingdon South Junction via St Ives (reverse) | |
| NJN | Neasden Junction Curve | 6.24 - 6.56 | Northolt Junction | |
| NJS | Norwood Junction to Norwood Spur (Birkbeck) Junction Line | 0.00 - 0.50 | Norwood Junction | |
| NKE | New Kew Junction to Kew East Junction Curve | see separate portions | ||
| NKE1 | Kew East Junction to mileage change | 3.27 - 3.39 | Willesden High Level Junction | |
| NKE2 | New Kew Junction to mileage change | 9.34 - 9.64 | Waterloo | |
| NKL | North Kent Loop | 4.23 - 17.05 | Charing Cross | |
| NLB | North Leith Branch | 5.15 - 5.56 | Edinburgh Princes Street?? | Assuming Caledonian line |
| NLC | North Lancashire Loop/Great Harwood Loop | 1.76 - 9.03 | Rose Grove West Junction | |
| NLC | unknown | see separate portions | ||
| NLC1 | unknown | 0.00 - 0.53 | unknown | Not in GEOGIS but present in a structure maintenance system |
| NLC2 | unknown | 2.38 - 3.27 | unknown | Not in GEOGIS but present in a structure maintenance system |
| NLC3 | unknown | 0.00 - 1.33 | unknown | Not in GEOGIS but present in a structure maintenance system |
| NLF | Norwood Junction to Low Fell Junction Curve | 0.00 - 1.42 | Low Fell Junction | |
| NLG | North Linrigg Branch | 0.00 - 0.79 | North Linrigg Junction | Off Caledonian Railway Lanridge Junction to Salisburgh Branch, serves North Linrigg No 1 Pit and Legbrannock Nos 4 & 5 Collieries |
| NLI | North London Incline | 0.00 - 0.51 | Copenhagen Junction | Formerly CRF1 and CRF2 |
| NLL | Newport Low Level Loop (also known as Newport Local Lines) | 0.00 - 0.45/ 159.60 - 160.25 | Alexandra Dock Junction (Low Level Loop Junction)/ London Paddington via Gloucester | |
| NLN | Nelson Branch | 13.56 - 19.12 | Cardiff Bute Road | Formerly NSN; part formerly NEZ. Remiled at Nelson (NSN) 1936 |
| NLO | Newport Low Level Loop No. 1 | 0.13 - 0.52 | Waterloo Junction | |
| NLP | Newlands Loop | 2.76 - 3.34 | Copper Works Junction via Newlands Junction (reverse count and direction) | |
| NLS | Newark Lowfield Sidings | 7.13 - 9.22 | Bottesford West Junction | Duplicates north end of BON |
| NLZ | Llanelly Dock North Side | 225.07 - 225.20 | Paddington via Stroud and Dolau Junction (reverse) | |
| NMA | Nuneaton Avoiding Line (Midland Junction to Abbey Junction) | 9.59 - 11.33 | Whitacre Junction | Part now PVS |
| NMB | North Mersey Branch | 30.62 - 35.28 | Manchester Victoria | |
| NMC | New Mills and Cheadle Branch | see separate portions | ||
| NMC1 | New Mills South Junction to Heaton Mersey Station Junction | 172.16 - 182.22 | St Pancras via Chaddesden | |
| NMC2 | Cheadle Heath South Junction to Cheadle Junction | 181.14 - 181.71 | St Pancras via Chaddesden | |
| NMD | North Monkland Branch | 0.00 - 8.73 | Kipps Junction | Kipps Junction - Greengairs - Slamannan Junction |
| NMH | Northampton and Market Harborough Line | 0.00 - 18.45 | Duston West Junction | |
| NML | Newport Monmouthshire Loop | 0.00 - 0.49 | Maesglas Junction | Remainder now 160.19 - 160.27 from Paddington |
| NMM | North Mersey Branch to Marsh Lane Junction Curve | 34.02 - 34.40 | Manchester Victoria | |
| NMP | Nine Mile Point Branch | 5.47 - 8.00 | Courtybella (Town Dock) Junction | |
| NMS | New Malden to Shepperton Branch | see separate portions | ||
| NMS1 | New Malden to Fulwell Junction | 9.68 - 14.53 | Waterloo via New Malden | |
| NMS2 | Fulwell Junction to Shepperton | 12.56 - 19.00 | Waterloo via Twickenham | |
| NNH | Neilston (Lanark and Ayrshire) Branch | 100.77 - 108.59 | Carlisle | |
| NNJ | Northwich Station Junction to South Junction Curve | 8.38 - 8.66 | Sandbach North Junction | |
| NNL | Northolt and Neasden Line | -0.02 - 6.31 | Northolt Junction | Now NAJ1 |
| NNM | Newport Dock Street Branch (also known as Newport Neutral Mile) | 0.00 - 1.00 | Courtybella (Town Dock) Junction | |
| NNS | Newcraighall North-South Link | 4.63 - 5.00 | Edinburgh Waverley via Portobello Junction | |
| NOB | Nottingham and Barnetby Line | see separate portions | ||
| NOB1 | Nottingham East Junction to Lincoln deviation | 0.00 - 32.00 | Nottingham London Road Junction | |
| NOB2 | Lincoln deviation to West Holmes Junction | 32.00 - 32.70 | Nottingham London Road Junction | |
| NOB3 | Barnetby Junction to Lincoln Pelham Street Junction | 12.55 - 41.26 | New Holland | |
| NOB4 | Lincoln deviation to Pelham Street Junction via St Marks | 32.00 - 33.15 | Nottingham London Road Junction | |
| NOC | Normanton and Colton Junction Line | 5.41 - 23.54 | York | |
| NOD | Newport Old Dock Branch/Pillgwenlly Branch | 0.30 - 0.78 | Courtybella (Town Dock) Junction | |
| NOE | North Elmham Branch | 0.03 - 16.20 | Wymondham | |
| NOG | Nottingham to Grantham Line | see separate portions | ||
| NOG1 | Grantham to Netherfield mileage change | 106.08 - 125.25 | Kings Cross | |
| NOG2 | Netherfield Junction to Netherfield mileage change | 2.35 - 2.54 | Nottingham London Road Junction | |
| NOL | Norwich Oulton Broad and Lowestoft Line | 0.29 - 23.41 | Norwich | |
| NOP | Normanby Park Sidings Branch | see separate portions | ||
| NOP1 | Scunthorpe West Junction to Roxby stop board (North Lindsey Light Railway) | 0.00 - 11.12 | Scunthorpe West Junction | |
| NOP2 | Trent Junction to mileage change (New route) | 0.00 - 2.60 | Trent Junction | |
| NOP3 | Second new route | 2.51 - 4.35 | Trent Junction | |
| NOR | Norton Branch | see separate portions | ||
| NOR1 | Original Route | 0.00 - 3.00 | Norton Junction | Off LNW Walsall to Lichfield Line |
| NOR2 | Extension | 0.00 - 2.64 | Norton Branch Junction, East Cannock Junction Box | Off LNW Walsall to Rugeley Line, runs to junction with NOR1 |
| NOS | Stockton North Shore Branch | 0.00 - 0.67 | North Shore Junction | |
| NOT | Northwich and Marston Brance No 1 Railway | ?? - ?? | ||
| NOY | Normanby Line | 0.00 - 3.49 | Cargo Fleet Junction | |
| NPB | Newbury Park Branch | 8.11 - 14.08 | Liverpool St | |
| NPF | North Pembroke and Fishguard Line | 264.33 - 287.52 | Paddington via Stroud | |
| NPT | Nellie Pit Branch | 0.00 - 1.16 | Lochgelly Colliery Siding Box | Lumphinans to Thornton Junction Line |
| NPW | Newport Pagnell and Wolverton Branch | 0.10 - 4.01 | Wolverton station | |
| NQB | North Queensferry Branch | 0.08 - 2.01 | Inverkeithing | |
| NQY | North Quay Branch | 245.37 - 245.77 | Paddington via Box | |
| NSA | North Junction to South Junction Curve (Aldershot) | 50.01 - 50.43/ 0.00 - 0.42 | Charing Cross via Redhill/Aldershot South Junction | |
| NSA | Nuneaton South Junction to Abbey Junction | 9.60 - 10.61 | Whitacre Junction | Part on former NMA. Now PVS |
| NSB | Netherseal Branch | 122.61 - 125.46 | St Pancras via Leicester, Coalville and Woodville | |
| NSC | North Staveley Curve | ?? - ?? | Duplicates BCM? | |
| NSE | Newark Crossing Curve | 0.00 - 0.21 | Newark Crossing South Junction | |
| NSM | Norwich City to Sheringham Branch | 34.10 - 52.64 | South Lynn Junction via Melton Constable (reverse) | |
| NSN | Nelson Branch | Now NLN | ||
| NSN | Northwich South Junction to Northwich West Junction Line | 8.38 - 8.65 | Sandbach North Junction | |
| NSR | Nottingham Suburban Railway | 0.00 - 3.55 | Trent Lane East Junction | |
| NSS | North Stafford Junction and Stoke-On-Trent Line | 0.00 - 30.10 | Stoke Junction | |
| NSU | North Sunderland Railway | 0.00 - 4.06 | Chathill | |
| NSW | New Curve to Staveley Works Line | 0.00 - 0.18 | Staveley Coal and Iron Co's Sidings Junction | Presuming Midland not Great Central route |
| NSZ | Nettlefolds Siding | 0.30 - 0.45 | Bassaleg Junction | |
| NTB | New Tredegar Branch | 20.55 - 21.62 | Cardiff East Dock | |
| NTD | Newport Town Dock East Side | 0.00 - 0.40 | East Dock Junction | |
| NTD | Newport Town Dock West Side | 0.00 - 0.38 | Town Dock Junction | Listed 0.40 - 0.73 |
| NTE | North Curve (Manningtree North Junction to East Junction) | 0.00 - 0.24 | Manningtree North Junction | |
| NTG | Newtyle Goods Branch | 0.00 - 0.28 | Newtyle Junction | |
| NTH | Netherton to Old Hill Branch | 139.20 - 139.50 | Paddington | Not Windmill End Branch |
| NTL | Nunhead To Lewisham Line | 6.09 - 7.53 | Victoria | |
| NTM | Northampton Sidings | see separate portions | ||
| NTM1 | River Sidings | 65.60 - 66.04 | Euston | |
| NTM2 | Castle Yard | 65.64 - 66.19 | Euston | |
| NTM3 | Reception Sidings | 66.20 - 66.59 | Euston | |
| NTM4 | Upside Sidings | 66.20 - 67.12 | Euston | |
| NTN | Netherton Basin Branch | 0.00 - 0.67 | Windmill End Junction | |
| NUG | Nunnery Goods Branch | 0.00 - 0.62 | Woodburn Junction | |
| NUJ | Nunnery Junction to Woodburn Junction Curve (Sheffield) | see separate portions | ||
| NUJ1 | Main Line Junction to mileage change | 158.77 - 159.33 | St Pancras via Leicester, Toton and Sheffield | |
| NUJ2 | Mileage change to Nunnery Junction | 41.68 - 42.29 | Manchester London Road via Woodhead | |
| NVB | Nidd Valley Branch | 0.00 - 11.66 | Ripley Junction | |
| NWC | Newton West Junction to Carmyle Branch | 95.67 - 96.30 | Carlisle | Formerly NAC |
| NWE | Norton-On-Tees West Junction to East Junction Curve | 0.00 - 0.30 | Norton-on-Tees East Junction | |
| NWL | Newport Waterloo Loop | 0.00 - 0.24 | Waterloo Junction | |
| NWM | Newham Branch | 0.00 - 2.31 | Newham Branch Junction | Formerly NEM |
| NWN | Newport Western Loop | 0.00 - 0.56 | Ebbw Junction | |
| NWO | Nuneaton and Water Orton Line | 0.00 - 10.18 | Whitacre Junction | |
| NWS | Northampton Welding School | 70.68 - 71.31 | St Pancras | |
| NWT | Newbury and Winchester Line | 0.00 - 25.29 | Newbury Enborne Junction | |
| NYC | North Yorkshire and Cleveland Line | 0.00 - 11.61 | Picton Junction | |
| NYD | Norwood Yard and Selhurst Workshop Sidings | 8.73 - 9.46 | London Bridge | |
| NYZ | Neath Yard Line | 0.06 - 0.25 | Neath And Brecon Junction |