On-Track Machine Headcodes

Each on-track machine is usually allocated the same "headcode" when moving around the rail network. Here is a list of known headcodes so you can cross-reference them with timetable/movement information from other sources.

6Q01 is a bit of an odd one - it can apply to just the 79102+79103 pair; or the 79104+79105 pair; or both pairs running as a four!

If you have any corrections or updates then please get in touch via the forum post about headcodes.

3Z––

4Q––

6J––

6Q––

6T––

6U––

6X––

6Z––

7J––

7Z––