Which ones are they please? Brain not working today.
6 also operate between Motherwell and Glasgow Central, and between Edinburgh and Haymarket. Scotrail, Virgin, TPE, Caledonian Sleeper, XC and LNER.
5 operators run between Birmingham International and New Street/Wolverhampton (Virgin, XC, West Midlands, London Northwestern, TfW).
But no, nowhere has more than 6 I believe.