LNW-GW Joint
Veteran Member
Does it even matter?
London-Southampton/Portsmouth qualifies just as much as London-Derby/Nottingham, but it isn't considered Intercity.
Although XC (which serves Southampton) is considered an Intercity TOC but doesn't go to London.
There are many anomalies.
TPE is supposed to be an Intercity TOC too (with Hitachi high-speed trains soon), but many railway geeks wouldn't agree.
London-Banbury-Birmingham is historically an Intercity route, but isn't viewed that way today.
London-Norwich will soon lose its "Intercity" feel when the new trains come in.
Many lines have become what the Germans would call RE (Regional Express) rather than IC (eg Liverpool-Norwich).
But we are left with certain lines which support 100mph+, which includes the MML (and parts of XC), but excludes Southampton/Norwich.