This is how demon.co.uk ends, not with a bang but a cock-up: Randomer swipes decommissioning domain

Namesco says soz, Brit data watchdog investigating

The last vestige of ye olde UK ISP Demon Internet, in the form of the demon.co.uk subdomain, was given its marching orders this year as internet services outfit Namesco told customers to change email address by 29 May or lose it.…

via The Register - Data Centre: Cloud
https://go.theregister.com/feed/www.theregister.com/2020/09/18/demon_decommissioning_oopsie/