If Northern Ireland leaves, I guess the UK no longer exists, and we switch to ".gb". Could clone .uk at .gb for a while (ten years?) and give people time to switch, but seems more likely Nominet would prefer to just charge people twice for a .uk and a .gb.
If Scotland and Northern Ireland leaves, that leaves us as just "Britain". Maybe we create a new ".brit" (or whever the 2 char country code will be), and give time for .uk to disappear again.
Wales wont leave.
[edit] I just saw emmelaich's comment that .gb already exists.
"The medieval conquest and subsequent annexation of Wales by the Kingdom of England, followed by the union between England and Scotland in 1707 to form the Kingdom of Great Britain, and the union in 1801 of Great Britain with the Kingdom of Ireland created the United Kingdom of Great Britain and Ireland."
Wales is part of the Kingdom of England, under the "Laws in Wales Acts 1535 and 1542" [3].
Without Scotland, it becomes the United Kingdom of England and Northern Ireland, leaving the Kingdom of Scotland. Scotland would be assigned an ISO 3166 code. SC, SO, ST, SL, SA, SN and SD are all taken. Perhaps they can have "AB" for "Alba". The "GB" code would be unassigned.
Without Ireland, it becomes the United Kingdom of Great Britain. Northern Ireland presumably joins the Republic of Ireland in this case.
Without both, it becomes the Kingdom of England, the Kingdom of Scotland, etc. England would then need an ISO code, "EN" is available.
[1] https://en.wikipedia.org/wiki/Acts_of_Union_1707
[2] https://en.wikipedia.org/wiki/Acts_of_Union_1800
[2] https://en.wikipedia.org/wiki/Laws_in_Wales_Acts_1535_and_15...
[0] https://en.wikipedia.org/wiki/Countries_of_the_United_Kingdo... and https://en.wikipedia.org/wiki/United_Kingdom
[1] https://webarchive.nationalarchives.gov.uk/20080909013512/ht...
I assume no, so perhaps it's ok for a Kingdom of Great Britain not to include all of it :)
FWIW, Serbia almost kept with the Yugoslavia for as long as it had someone to unite with. It did turn into Serbia and Montenegro in 2003, before ultimately splitting in 2006.
It even got a first case of ISO country code reuse with CS (hi Czechoslovakia), but I don't think there was ever a TLD .cs for it.
Meh, it will become "the United Kingdom of England and Overseas Territories" or something to that effect. UK is a brand and a symbol that Westminster will never abandon. Serbia, for example, tried really hard to remain "Yugoslavia", and if it weren't for the tensions it generates, that name would still be around.
"Should the UK leave the EU with no deal on 1st November 2019, EURid will enforce the following measures as far as .eu domain names that have GB/GI as the registrant’s residence country code are concerned..."
If someone really wants uk in their TLD they can always go with .uk.com - totally unrestricted.
One effect can be seen on .eu: After Brexit UK entities aren't eligible for .eu domains anymore and depending on the outcome on Oct 31st might lose it immediately (while there are statements for a grace period even on Brexit without further agreement ... but no deal leads to no legal requirement)
The official one is .gb
Scotland already have .Scot and I think Wales have thier own also. Not sure I've seen a .England though.
UK is a reserved ISO 3166 code, to prevent complications with DNS TLD assignment.
The .GB TLD is in use, but there are only three known domains. This is one:
host hermes.dra.hmg.gb
hermes.dra.hmg.gb has address 146.80.9.16
hermes.dra.hmg.gb mail is handled by 10 relay.dstl.gov.uk..uk would probably remain just as grandfathered-in as it is right now, given that the official 2-letter country code is gb .
What I see happening is that in some countries the EU become the scapegoat for the government corruption and incompetence, usually you could use the other party that was before to blame them but if your party was in power for more then 8 years then is harder to find scapegoats.
With Jacob Reece Mogg and James Dyson moving their assets overseas, are they not now 'globalists'?
I think that's a big _if_ here. Most probably the economy will crumble and there will be fights in Northern Ireland again. Also whatever kind of border has to be established, to separate UK and Ireland, as people would obviously not be allowed to enter the UK/Schengen area without proper border checks...