Nominet Domain Registrars and IPS-TAGS
This relates to transferring a .UK TLD (top level domain)
When you are transferring domains from one registrar to another, they always ask for the IPS-TAG. This is the unique name for the registrar (domain name management) you are transferring to.
Some tips for your top level domain name
.uk – The shorter domain for everyone. .co.uk – The orginal domain for British business. .org.uk – For your cause. .me.uk – When it’s all about you.
So, here is a list of IPS-TAGS for the most common registrars out there in the UK: