Robtex

Up: 109.71.16.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 109.71.16.0/22
Down right: 109.71.20.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
109.71.16.129	A+PTR	mail.ibykus.net
109.71.16.172	A	rr-impuls.com
109.71.16.181	A	mail.eco-bau-erfurt.de
109.71.16.186	A	persema.de
109.71.20.5	A+PTR	mail2.ibykus.net
109.71.20.70	A	www.steute.ru
109.71.20.70	A	steute.dk
109.71.20.70	A	mdr-ready.com