Bless you know so little !! Its a dynamic ip address with a short lease!!
If you resolve it it tells you its a dsl tiscali connection. By the time this is posted
it will have changed again.

So your port scanning (at a later time) a different network that has obtained the ip
address lease.

I told you I taught you all you know. You can now see why it did’nt take long.

Reb x