blocking ip's out uk

[#1]

So I'm going to make a server that blocks IP's outs the uk. I can make a rule that looks like this and will block anything that start with:
86.63.*.*
This is how I get around blocking cheates with a dynamic ip but how do I find out what IP are not UK ones or only UK IP.
So what I need to work out is what range do UK IP's start with?

[#2]

Do these help ? -
http://www.ipaddresslocation.org/ip_ranges/get_ranges.php
http://www.find-ip-address.org/ip-country/

[#3]

thanks man, thats one big list and thats only uk ip's 

[#4]

That's a mammoth and complex task. I'll be surprised if you can achieve it. Wouldn't it be easier for you to simply block the IP of a specific cheater when you encounter them? Why are you only wanting to block non UK IPs? There are plenty of cheaters here. On the note of cheaters, I had the most bizarre one last night. Managed to capture a couple of mins video of it, which I will upload to youtube at some point so others can see them.

[#5]

This isnt about cheaters but more about low latency old school gaming. It would be one server out of many but the only one thats UK only.
I could do this but it might take me a while.

[#6]

I block China/Russia/Korea, etc from having any access to my home servers, mainly to prevent automated attacks.. What you want to do is a massive task, and as mentioned maybe best to block on a per-user basis, or even problematic countries. I don't have any issues with Russia but they are also known for cheating.. alot.

[#7]

Yep couldn't agree more.
What would be nice is if all ip's from say Russia start with 190. then I could add 190.*.*.* and that would block anything starting with 190. But I know its not as simple as that 

[#8]

@Blim
What operating system are your gaming servers on?
If it's Linux based, I can link you to a tutorial I've made, should make blocking entire countries fairly easy.