Robtex

Up: 74.121.64.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 74.121.64.0/24
Down right: 74.121.65.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
74.121.64.4	A	webmaster.ntghosting.com
74.121.64.5	A+PTR	exchange.nexustechgroup.com
74.121.64.6	A	pe.nexustechgroup.com
74.121.64.6	A	preventivedge.nexustechgroup.com
74.121.64.10	A+PTR	smtp2.ntghosting.com
74.121.64.13	A	mx1.ntghosting.com
74.121.64.15	A+PTR	mx2.ntghosting.com
74.121.64.15	A	ns2.ntghosting.com
74.121.64.15	A	ns2.maildesk.net
74.121.64.25	A	ns1.maildesk.net
74.121.64.25	A	ns1.ntghosting.com
74.121.64.34	A	mail.cosadocs.com
74.121.64.40	A	mail.neohioeye.com
74.121.64.42	A+PTR	securemail.nexuspracticeit.com
74.121.64.42	A	zixvpm.joint-surgeons.com
74.121.64.43	A	mail.columbussleepconsultants.com
74.121.64.44	A+PTR	mail.eastsidedermatology.com
74.121.64.45	A	mail.arenaeyesurgeons.com
74.121.64.48	A	mail.immsinc.com
74.121.64.48	A	mail.caephysicians.com
74.121.64.49	A	mail.chcgd.com
74.121.64.49	A	mail.chcgd.org
74.121.64.50	A	mail.hofhc.org
74.121.64.51	PTR	mail.maumeeeyeclinic.com
74.121.64.80	PTR	mx.ntghostig.com
74.121.64.80	A	imap.ntghosting.com
74.121.64.80	A	mx.ntghosting.com
74.121.64.81	A	thevestagroup.com
74.121.64.81	A	www.curiocabinet.com
74.121.64.89	A	osuhealthplan.org
74.121.64.160	PTR	mx.ntghosting.com
74.121.64.161	A	tagbilling.com
74.121.64.232	A	mail.cshco.com
74.121.65.36	A	myohsaa.ohsaa.org
74.121.65.43	A	secure.soita.org
74.121.65.44	A	lakewoodcityschools.tv
74.121.65.45	A	montgomery.k12.oh.us
74.121.65.47	A	manchester.web1.schoolpointe.com
74.121.65.47	A	www.mayfield.k12.oh.us
74.121.65.47	A	hostmaster.littlemiamischools.net
74.121.65.49	A	digitalscoutservices.net
74.121.65.49	A	www.digitalscoutservices.net
74.121.65.117	A	reachoutstore.com
74.121.65.132	A+PTR	switch01.movepoint.net
74.121.65.136	PTR	nas01.movepoint.net
74.121.65.136	A	smtp.mvptmail.com
74.121.65.146	A+PTR	hosting01.movepoint.net
74.121.65.146	A	movepoint.org
74.121.65.146	A	movepoint.net
74.121.65.150	A+PTR	mail01.movepoint.net
74.121.65.150	A	mvptmail.com
74.121.65.150	A	ns2.movepoint.net
74.121.65.164	A+PTR	fw.phydio.com
74.121.65.164	A	smtp.heavyload.net
74.121.65.164	A	smtp.phydio.com
74.121.65.165	PTR	fw1.phydio.com
74.121.65.165	A	smtp-1.heavyload.net
74.121.65.166	PTR	fw2.phydio.com
74.121.65.166	A	smtp-2.heavyload.net
74.121.65.166	A	smtp-2.phydio.com
74.121.65.167	PTR	www.phydio.com
74.121.65.168	A	webmail.phydio.com
74.121.65.170	PTR	webmail.insuraware.com
74.121.65.170	A	insuraware.com
74.121.65.180	A	egress.findfred.com
74.121.65.181	A+PTR	www.findfred.com
74.121.65.181	A	findfred.com
74.121.65.182	A	api.findfred.com
74.121.65.183	PTR	smtp.findfred.com
74.121.65.183	A	meetmindy.com