Topic summary

.gov.uk

Extracted from the Wikipedia article .uk.

.govt.uk – former government domain, now deleted and replaced by .gov.uk.
.orgn.uk – former non-profit organisations domain, now deleted and replaced by .org.uk.
.lea.uk – local education authorities; since fallen out of use.
.mil.uk – the Ministry of Defence have always used .mod.uk for their external domain, but use .mil.uk on their private network. .mil.uk exists only as a CNAME for .mod.uk in the .uk zone file.