Originally Posted by Baldeagle
I blocked this entire network.
Code
NetRange:       47.74.0.0 - 47.87.255.255
CIDR:           47.76.0.0/14, 47.80.0.0/13, 47.74.0.0/15
NetName:        AL-3
NetHandle:      NET-47-74-0-0-1
Parent:         NET47 (NET-47-0-0-0-0)
NetType:        Direct Allocation
OriginAS:       
Organization:   Alibaba Cloud LLC (AL-3)
RegDate:        2016-03-17
Updated:        2017-04-26
Ref:            https://rdap.arin.net/registry/ip/47.74.0.0
Their IPs were responsible for a tripling of our traffic, and I'm sure I'll find all sorts of bogus queries in the logs.

Did you pull that IP range from the server yourself or did the ISP provide you with that after opening up a ticket with support?