TV
"To the lease holder of Kryten 2X4B 523P." That's your full name?
— Lister • Red Dwarf

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The speaker reads out an official-sounding address to a leaseholder and asks, in disbelief, whether that string of letters and numbers is really the other person's full name. The joke is how absurdly mechanical the name is, more like a serial number than something anyone would be called.
Context reviewed