UK Internet Sites: UK Domains Information

The .uk domains are split as follows:
ac.uk
Further and Higher Education organisations plus Research organisations.
co.uk
Commercial organisations. Although most organisations will fit at the third-level there are a number of neutral subdomains which are intended for particular groups of otherwise unrelated organisations (This list may be added to as the naming committee and/or co.uk zone administrator sees fit.):
music.co.uk
Organisations in the music industry
law.co.uk
Organisations related to the legal profession (but see also law.org.uk)
tv.co.uk
TV stations and related organisations
radio.co.uk
Radio stations and related organisations
internet.co.uk
Internet service providers
gov.uk
Government organisations. Includes national and local government plus foreign embassies.
mod.uk
Ministry of Defence.
net.uk
Network providers. Like the .net top level domain this is primarily for infrastructure, not for customers.
nhs.uk
National Health Service. This is sub-domained according to the following list. Individual organisations will sit at the 4th level.
swest.nhs.uk
South and West Region
sthames.nhs.uk
South Thames Region
nthames.nhs.uk
North Thames Region
anglox.nhs.uk
Anglia and Oxford Region
wmids.nhs.uk
West Midlands Region
trent.nhs.uk
Trent Region
northy.nhs.uk
North and Yorkshire Region
nwest.nhs.uk
North West and Mersey Region
exec.nhs.uk
Executive
supply.nhs.uk
Supplies
wales.nhs.uk
NHS in Wales
scot.nhs.uk
NHS in Scotland
n-i.nhs.uk
NHS in Northern Ireland
nba.nhs.uk
National Blood Authority
dpb.nhs.uk
Dental Practice Board
nhscr.nhs.uk
NHS Central Register
nhscs.nhs.uk
NHS Clearing Service
ccmg.nhs.uk
NHS Central Communications Management Group
nhstb.nhs.uk
NHS Telecommunications Branch
nhsweb.nhs.uk
NHS Web
nhsnet.nhs.uk
NHS Net
org.uk
Not for profit organisations. Neutral subdomains of org.uk include:
law.org.uk
Not-for-profit organisations related to the legal profession
tec.org.uk
For Training & Enterprise Councils.
sch.uk
Schools. Third-level subdomain is local education authority area, normally the County or London Borough, (even for Private and Grant Maintained schools) with each school sitting at the 4th level - school-name.education-authority.sch.uk.
Others, which are oddities and with hindsight should have been lower down: e.g. bl.uk for the British Library and jet.uk for the JET project.
Credit: All of this information was taken from an older version of the details at the UK NIC UK domains page and edited to fit this look.
Edited by Dave Beckett, University of Kent at Canterbury, UK.