I found this, but I don't think it answears my question: Is it safe to assume that two hosts on the same /24 network belong to the same AS-number?
I have online shop, on which somone is spamming massievely shopping carts. That IP belongs to a company which I found by using who.is https://who.is/whois-ip/ip-address/38.99.82.254
It states that their IP network is: network:IP-Network:38.99.82.0/24
Is it safe to assume that this network belongs to this company? So if I block by this IP mask I don't block some kind of legit ISP?
If no, then is there a way to determine what IP range should I block from this IP?
It all belongs to FieldTech, Inc. Searching for them I found this.