Robtex

Up: 204.13.144.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 204.13.148.0/23
Down right: 204.13.150.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
204.13.148.5	A+PTR	ns0.compexinc.net
204.13.148.5	A	ns1.compexinc.net
204.13.148.5	A	ns0.compexinc.com
204.13.148.6	PTR	ns2.compexinc.net
204.13.148.8	A+PTR	inbound1.compexinc.net
204.13.148.8	A	inbound1.compexinc.com
204.13.148.9	A+PTR	inbound2.compexinc.net
204.13.148.9	A	inbound2.compexinc.com
204.13.148.16	PTR	cbn.compexinc.com
204.13.148.16	A	mobiglyphs.com
204.13.148.16	A	belakovach.com
204.13.148.17	PTR	www.compexinc.com
204.13.148.18	A	belakovach.com
204.13.148.18	A	picfly.me
204.13.148.19	PTR	mobipet.mobiworld.me
204.13.148.20	A	sunkistenergy.com
204.13.148.20	A	preventading.com
204.13.148.29	A	donateandhelp.me
204.13.148.30	A	picfly.me
204.13.148.32	A	mail.compexinc.com
204.13.148.35	PTR	mail.permitholderexchange.com
204.13.148.35	A	lifeview.technology
204.13.148.35	A	liveviewtechnology.com
204.13.148.36	A	mail.faithstream.com
204.13.148.37	A+PTR	mail.mobiusworld.me
204.13.148.41	A	newsouthernsongs.com
204.13.148.42	A	irieunlimited.com
204.13.148.44	A	jobdoc.com
204.13.148.48	A	foodgalaxy.net
204.13.148.48	A	www.foodgalaxy.net
204.13.148.50	A	emerchit.com
204.13.148.50	A	lasoh.com
204.13.148.60	A+PTR	cc0d943c.ip.compexinc.net
204.13.148.60	A	aftportal.com
204.13.148.60	A	emeraldcarenetwork.com
204.13.148.76	A	panaceavet.com
204.13.148.194	A+PTR	web1.kinetic-spaces.com
204.13.148.196	A+PTR	s1.ds.net
204.13.148.196	A	ds.net
204.13.148.196	A	www.ds.net
204.13.148.199	A+PTR	cc0d94c7.ip.compexinc.net
204.13.148.201	A	rrcinc.net
204.13.148.210	A	cc0d94d2.ip.compexinc.net
204.13.148.212	A	www.transitioningtogether.org
204.13.148.214	A+PTR	stnguide.cas.org
204.13.151.6	A	cc0d9706.ip.compexinc.net
204.13.151.68	PTR	cluster68.compexinc.com
204.13.151.68	A	trustbeef.com
204.13.151.68	A	faithstream.com
204.13.151.72	A	themoneyreferral.com
204.13.151.74	A	foodgalaxy.biz
204.13.151.77	PTR	cc0d974d.compexinc.com
204.13.151.77	A	mobiworld.me
204.13.151.79	PTR	cc0d974f.compexinc.com
204.13.151.79	A	inbound.picfly.me
204.13.151.79	A	inbound.coinfly.me
204.13.151.109	A	polaris009.compexinc.com
204.13.151.112	A	cluster70.compexinc.com
204.13.151.123	A+PTR	m3.picfly.me