What host or IP does Windows Update use when updating?

What host or IP does Windows Update connect to when updating?

If I knew that I could block that address to prevent updates ... until such time as I deem them permissible.

With regard to updates, Windows 10 is variable across versions.
I have Home, which behaves differently than Pro.
The update "on/off switch" has been commandeered by Microsoft. And they're not giving it back.

So I will create my own update switch in the form of a router/firewall rule.
Before I can block the Update service I just need to know where it goes to get those updates.

If you block updates then your system may not be secure as a lot of updates are to enhance security with all the ransomware going on you may put yourself at risk

I want to know as well so that I can throttle how much bandwidth it takes!