I just have a "free" IP address, from my VPS location service.
It's not linked to a VPS yet.
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$ ping 78.47.46.46
PING 78.47.46.46 (78.47.46.46) 56(84) bytes of data.
--- 78.47.46.46 ping statistics ---
2 packets transmitted, 0 received, 100% packet loss, time 1002ms
$ host 78.47.46.46
46.46.47.78.in-addr.arpa domain name pointer static.78-47-46-46.clients.your-server.de.
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So the host is down (not linked to a server), but the IP is still resolved.
macman31