Servers missing for over a week

All servers I have been playing on have disappeared from my favorites list.
Tried searching in the official list and they are all missing there as well.
Has been well over a week.
Device: xbox one x
Server #s:
2130
2807
2811

Have these servers been removed or just down?
Please advise.
Thank you!

The IP address was changed on many you need to type server numbers in lost favorites on pc ps5 and Xbox. @Balthazar138

What Sestus said. 2130 is fine, not sure about the others.