What is Schwarzl ´s IP Checker showing me?
After insertion of the tcp/ip number you will see the owner and admin of that ip-number.As usual these are big network-centers but there are also many companies which have there own adress area.

When do I need the owner or administrator of an ip number?
1.Case:
e.G: a router (with a special ip) to your pc (or even network) goes wrong.With Schwarzl ´s IP Checker you will find out whom this will concern. So you can contact the admin and tell him of your (better his) problems.
2.Case:
Your system is attacked by an hacker - maybe destroy something. Off course he has not left his personal adress.But if you have logged his access and got his ip-number you will find out who is the administrator of this ip. Contact this admin, he can get the adress of the hacker and will help you to get the yielded

Good Luck!