Robtex

Up: 205.215.240.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 205.215.240.0/22
Down right: 205.215.244.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
205.215.240.35	A	mail.mdstad.com
205.215.240.70	A	ookla1.portnetworks.net
205.215.240.114	PTR	ap.c28023.portnetworks.net
205.215.241.219	A+PTR	ns1.portnetworks.net
205.215.242.155	PTR	205-215-242-155.dhcp.hen.portnetworks.net
205.215.246.29	PTR	205-215-246-29.pn.portnetworks.net
205.215.246.161	PTR	205-215-246-161.pn.portnetworks.net
205.215.246.211	A	chrisciafardini.com
205.215.247.88	PTR	205-215-247-88.static.ccc.portnetworks.net
205.215.247.100	A	shiftscience.com
205.215.247.134	A	headfullofhannibal.com
205.215.247.134	A	friendquisition.com
205.215.247.134	A	giantrobotsolutiongroup.com
205.215.247.140	A	charlie.portnetworks.net
205.215.247.168	A	mail.miraclestripwireless.com
205.215.247.170	PTR	portnet.carp.portnetworks.net
205.215.247.170	A	portnetworks.com
205.215.247.170	A	portnetworks.net
205.215.247.180	A	mail.stkgrlaw.com
205.215.247.186	A	mail.krcoffice.com