Where the data comes from
Network, operator and abuse contact come from the public databases of the internet registries (RIPE NCC, ARIN, APNIC …), queried via RIPEstat. The location is an estimate from the MaxMind GeoLite database: for mobile networks, large providers and data centres it is often hundreds of kilometres off, an IP does not reveal a street address.
The AS number (autonomous system) shows who announces the network on the internet, usually the provider or data centre. The abuse contact is the right place for spam, attacks or other abuse reports.