Headcode Search

Searching By Headcode

Use the search functions above to search for train services by signalling ID / headcode. Optionally, choose a date and operator.

Similarly to the live train times search, results will be shown in order of departure, along with their live running information.

You can use this feature to search by:

Understanding a Headcode

A headcode is a 4 character code used to identify trains across the UK rail network. Headcodes follow a number-letter-number-number sequence.

The First Number

The first number identifies the class of train, as outlined below:

The number may change after train activation, such as if the train is running light engine instead of its booked load, or if the consist uses slower wagon vehicles than those planned.

The Letter

For passenger services, the letter is often to identify a route a train will take (eg C might be used for Brighton to Seaford services, while M might be used for Brighton to Victoria). For freight, letters often designate its region of origin but that's not always the case. Here are some common headcode letters and what they often mean.

The Last Two Numbers

Usually the last two numbers refer to the time of departure and with passenger services these will usually increment throughout the day.

Headcode Examples

Latest Service Changes

Old HC New HC Service Runs
6X49 0D49 0542 TOTON NORTH YARD to BEESTON SIDINGS Today
7A29 6A29 0103 MEREHEAD QUARRY (FHH) to HANWELL BRIDGE LOOP Today
6M11 6M11 2359 MARGAM T.C. to ROUND OAK Yesterday
7V91 6V91 2346 WEMBLEY RECEPTIONS 1-7 to MEREHEAD QUARRY (FHH) Yesterday
7V91 7V91 2346 WEMBLEY RECEPTIONS 1-7 to MEREHEAD QUARRY (FHH) Yesterday
7V91 6V91 2346 WEMBLEY RECEPTIONS 1-7 to MEREHEAD QUARRY (FHH) Yesterday
7V98 6V98 0326 EASTLEIGH F.Y. AGG (FLHH) to MEREHEAD QUARRY (FHH) Today
6M15 4M15 0336 STOURTON CEMEX GBRF to PEAK FOREST CEMEX GBRF Today
6V61 0V61 2104 ROUND OAK to MARGAM T.C. Yesterday
6M89 0M89 0624 CARLISLE N.Y. to PORT OF WORKINGTON COLAS Today