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ATOC Operator Codes
Current Operators
Former Operators

ATOC Operator Codes

The information below was originally compiled by 'Sacro' (Ben Woodward); updated in March 2013 by 'UKTrainMan'.

Current Operators

Operator Code Notes
Abellio ScotRail SR
Avanti West Coast VT
c2c CC
Caledonian Sleeper CS
Chiltern Railways CH
CrossCountry XC
East Midlands Railway EM
Eurostar ES
Gatwick Express GX Govia Thameslink Railway (GTR) sub-brand
Grand Central GC
Great Northern GN Govia Thameslink Railway (GTR) sub-brand
Great Western Railway (GWR) GW
Greater Anglia LE
Heathrow Express HX
Hull Trains HT
Island Line IL South Western Railway sub-brand
London Northwestern Railway (LNR) LN West Midlands Trains sub-brand
London Overground LO
London Underground LT
Lumo LD
Merseyrail ME
Network Rail NR
Northern Trains NT
North Yorkshire Moors Railway NY
Southeastern SE
Southern SN Govia Thameslink Railway (GTR) sub-brand
South Western Railway SW
Stansted Express SX Greater Anglia sub-brand
TfL Rail XR
Thameslink TL Govia Thameslink Railway (GTR) sub-brand
Trafnidiaeth Cymru/Transport for Wales AW
TransPennine Express TP
West Coast Railway Company WR
West Midlands Railway (WMR) WM West Midlands Trains sub-brand

Former Operators

Operator Code Notes
Anglia Railways AR
Arriva Rail North NT
Arriva Trains Merseyside ME
Arriva Trains Northern AN
Arriva Trains Wales AW
Central Trains CT
Connex South Central CX
Connex South Eastern CX
East Coast GR
East Midlands Trains EM
First Capital Connect FC
First Great Eastern GE
First Great Western GW
First Great Western Link FK
First Hull Trains HT
First North Western FW
First ScotRail SR
First TransPennine Express TP
Great North Eastern Railway (GNER) GR
Great Western Trains GW
Heathrow Connect HC Absorbed into TfL Rail on 19th May 2018
Island Line Trains IL Brand name of South West Trains (SW),
as of February 2007
London Midland LM
Merseyrail Electrics ME
Midland Mainline ML
National Express East Anglia (NXEA) LE
National Express East Coast (NXEC) GR
Northern Rail NT
Northern Spirit NS
North Western Trains NW Rebranded to First North Western (FW) in March 1998
Regional Railways (RR) Parent company - British Rail
ScotRail SR Brand revised as First ScotRail (SR) in October 2004;
then renamed ScotRail in 2008
Silverlink SS "Previously known as North London Railways"
South Eastern Trains SE Publicly owned by the Strategic Rail Authority
between 9th November 2003 and 1st April 2008
South West Trains SW
Thames Trains TT
Thameslink TR 1997–2006 franchise
Valley Lines VL
Virgin CrossCountry XC
Virgin Trains (East Coast) GR
Virgin Trains (West Coast) VT
West Anglia Great Northern WN
Wales and Borders WB
Wales and West WW
Wrexham & Shropshire WS


- List correct as of June 2021.

- Codes shown in parentheses are not official; only used either in cases where an official does not exist or when it isn't known.

Last edited by Gwasanaethau on 17/11/2021 at 08:34