Robtex

Up: 74.112.160.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 74.112.168.0/22
Down right: 74.112.172.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
74.112.168.6	PTR	corp-out3-smtp.prosites.com
74.112.168.37	PTR	mail37.thedatabackup.com
74.112.168.60	A	o2airpurifier.com
74.112.168.61	A	www.cakesbyjane.com
74.112.168.62	A	s3.thedatabackup.com
74.112.168.226	A	mail.algenolbiofuels.com
74.112.168.226	A	mail2.algenolbiofuels.com
74.112.168.228	A	mx2.algenol.com
74.112.169.52	A	gbllpiwdd01.sealedair.com
74.112.169.60	A	dcblpostgw01.sealedair.com
74.112.170.21	A+PTR	mx1.icontact.com
74.112.170.21	A	mx2.icontact.com
74.112.170.26	A	mx3.icontact.com
74.112.170.30	PTR	mail.nexxuslighting.com
74.112.170.254	A+PTR	mail.icontact.com
74.112.172.30	A	gf-ea.com
74.112.172.30	A	archipailes.com
74.112.172.30	A	cawete.org
74.112.172.36	A	linux.cabreuvoip.com.br
74.112.172.50	PTR	www.sorularialayim.com
74.112.172.50	A	ebeveynler.com
74.112.172.61	A	631myrtle.com
74.112.172.92	A	mail.yestopaid.com
74.112.172.99	A	vps.bulkmoney.net
74.112.172.101	PTR	mbqck.eurosaffron.com
74.112.172.101	A	mx1.lithuan.com
74.112.172.101	A	ns14.lithuan.com
74.112.172.104	A	thompsonrack.com
74.112.172.108	A	aurora.shankshock.com
74.112.172.117	A	ns2.hindisongsfreedownload.in
74.112.172.194	PTR	domain.not.configured
74.112.173.2	PTR	124online.com
74.112.173.10	A	bos-ns1.bos.residualincomeandhealth.124online.com
74.112.173.74	A	shemalesonwebcams.com
74.112.173.81	PTR	owa.nexxuslighting.com
74.112.173.82	PTR	owa.nexxuslighting.com
74.112.173.83	A+PTR	mx1.nexxuslighting.com
74.112.173.84	A	mx2.nexxuslighting.com
74.112.173.86	A	owa.nexxuslighting.com
74.112.175.165	PTR	ip.dartpoints.com