logoRailway Codes and other data

A (hopefully) comprehensive listing

Additional information is always gratefully received, whether entirely new records (particularly historical records), or information to fill in gaps or correct errors, via the contact link under the Miscellaneous entry in the navigation bar above.  Thank you.


The British railway is, for a variety of reasons, awash with acronyms and codes of various kinds. This web site sets out to explain some of these related to the infrastructure and to operational issues. Not included in this site are abbreviations of company names, or information about trains themselves: this information is available elsewhere, and the editor's main interest lies in infrastructure.

Taking Aspley Guise as an example, the codes BBM and MD140 apply to the route on which Aspley Guise station sits, and APG, 138000, ASPLEYG, and 62051 (ASPLY GSE) apply to the station itself.  All of these codes mean different things, and are used in different ways.  This site helps to explain these codes.

Also on this site are lists of pseudo-legal data.  The first is a list of British railway services introduced under special legislation.  This legislation allows operators to consider certain services as "experimental", and withdraw them if considered necessary without going through full closure procedures.  The second is a list of licences and licence exemptions issued by the Office of the Rail Regulator.  There is a list of routes designated as community rail partnerships, and finally a table of franchises with associated dates.

Information about other assets such as signal box prefix codes, electrification mast codes, stations, depots and tunnel lengths is also available here.

For more information about day to day changes with Britain's railway infrastructure, please refer to the infrastructure section of the Railway Observer.

Most of the information contained in this site has taken many hours and letters to different companies to compile: it is hoped that you, the reader, will find it helpful to shed light on some of the codes found in railway documents.  The records contained in this site are as complete as possible.  If you are able to add to the data, please contact the editor.

Please feel free to quote this site.  However, please credit it as your source.  Feel free to add a link on your website to here.

The use of a reliable host and dedicated domain name is courtesy of a generous supporter, to whom the editor is indebted.



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These pages are used by (in alphabetical order):

Now over 90 corporate users! (Links open in new window)
  1. Advenza Freight (former freight forwarder)
  2. Aecom (consultancy formerly known as Scott Wilson and URS)
  3. AGH Engineering (electrical and mechanical consultants)
  4. Alphatek Hyperformance Coatings (rail coatings)
  5. Amey (infrastructure services/consultancy)
  6. Arriva Trains Wales (passenger train operating company)
  7. Arup (consultancy)
  8. Aspin Foundations (earthworks contractor)
  9. Association of Community Rail Partnerships (government/pressure association)
  10. Atkins (consultancy)
  11. Babcock Rail (infrastructure services)
  12. Balfour Beatty Rail Projects (infrastructure services)
  13. Barry Doe (independent consultant)
  14. Blue Tree Acoustics (energy and acoustic consultant)
  15. Bob Wilkes Railways Ltd (railway operating consultants)
  16. course tutor at Bromley Adult Education Centre (education establishment)
  17. Buckingham Group (infrastructure contractor)
  18. Carillion (infrastructure contractor)
  19. Ch2MHill (consultancy formerly known as Halcrow)
  20. Chiltern Railways (passenger train operating company)
  21. Coffey (ground engineering/geotechnical)
  22. Cogitare (infrastructure optimisation consultancy)
  23. Cornerstone Information Systems (travel industry IT solutions)
  24. Costain (infrastructure contractor)
  25. Cotswold Rail (former charter train and freight train operator)
  26. Credo (strategy consultant)
  27. Cubic Transportation Systems (consultancy formerly known as Serco Integrated Transport)
  28. Datasys (software solutions consultant, now part of Tracsis)
  29. Delta Rail (consultant)
  30. Department for Transport (government department)
  31. East Midlands Trains (passenger train operating company)
  32. Faithful+Gould (construction project and cost management consultancy)
  33. FENS Information Limited (information services)
  34. Filter Worldwide (IT solutions)
  35. Fone Alarm Installations (customer information and monitoring)
  36. Galliford Try (infrastructure contractor)
  37. Graffica (HERMES simulation software)
  38. Great Western Railway (passenger train operating company)
  39. Haigh Rail (infrastructure contractor)
  40. HRS Services (environmental services)
  41. High Speed 2 (infrastructure owner)
  42. Hyder Consulting (consultant)
  43. Infotec (customer information system designer/supplier)
  44. ISC Best Practice (CAD models for listed building and railway consents)
  45. JCP (consulting engineers)
  46. J Murphy & Sons (infrastructure contractor)
  47. JNP Group (consulting engineers)
  48. Kier Rail (infrastructure contractor)
  49. Lancashire council (local government)
  50. Landlab (landscape architects)
  51. Lionverge (infrastructure staff supplier)
  52. London Midland (passenger train operating company)
  53. MacRail Systems (progress reporting and workforce attendance monitoring)
  54. Mott MacDonald (consultant)
  55. MTR Crossrail (passenger train operating company)
  56. Murphy Group (infrastructure contractor)
  57. Network Rail (infrastructure owner)
  58. Nexus Alpha (transport information systems supplier)
  59. Northern Rail (passenger train operating company)
  60. NG Bailey (infrastructure contractor)
  61. OLE Limited (electrification services)
  62. Onsite (water/drainage specialists)
  63. OwenWilliams Railways (former consultancy, now part of Amey)
  64. Parkeon Transit Systems (ticket vending machine manufacturer/maintainer)
  65. Peeping Passenger Counts (operations consultant)
  66. Permanent Rail Engineering (UK) (infrastructure installation and maintenance)
  67. PRA-Rail Operations (operations consultant)
  68. Premtech Solutions Limited (consultancy)
  69. The Railway Engineering Co Ltd (consultancy)
  70. Rockshore (real time information systems)
  71. RSSB (safety and standards)
  72. Scientifics (chemical analyst)
  73. SELRAP (campaign group)
  74. SKM Anthony Hunt (consultancy)
  75. Siemens (equipment manufacturer)
  76. SNC Lavalin (consultancy formerly known as Interfleet Technology)
  77. Southern Railway (passenger train operating company)
  78. South West Trains (passenger train operating company)
  79. Stirling Geoenvironmental Ltd (earthworks examinations)
  80. telent (communications services)
  81. TEF Gauging (railway gauging services)
  82. Trackmaps (infrastructure diagram publisher)
  83. Tracsis plc (operations and planning systems consultant)
  84. Transport for London (government department)
  85. Transport Scotland (government department)
  86. Travelogix (data reporting software)
  87. Trevor Patrick Partnership (consultancy)
  88. TSP Projects (multi-disciplinary solutions)
  89. University of Southampton (education establishment)
  90. Vital Rail (infrastructure contractor)
  91. WSP (consultancy)
  92. WycheGnome (passenger information consultancy)
  93. Yorcard (smart ticketing)

Does your company use these pages?  Let the editor know to be added to the list!


... and something else (last update 3 January 2018):

You will find a small collection of railway photographs here and on this second page.  It is hoped that you find them enjoyable and a little different to the usual "front three quarters in countryside" views.  Being a little self-indulgent, the editor admires the new GWR branding; this Flickr album showcases it 'in action':

GWR brand