Robtex

Up: 185.31.20.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 185.31.20.0/24
Down right: 185.31.21.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
185.31.20.12	A	mail.gremifusters.com
185.31.21.215	PTR	transport.jotelulu.com
185.31.21.215	A+PTR	alt2.jotelulu.com
185.31.21.216	A	mx3.amperepintura.com
185.31.21.216	A	mx3.aximaq.com
185.31.21.216	A	mx3.jotelulu.com