Robtex

Up: 204.15.52.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 204.15.52.0/25
Down right: 204.15.52.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
204.15.52.1	A+PTR	c7206.maininet.com
204.15.52.1	A+PTR	c7206.maininet.net
204.15.52.3	A	mail.blessyourheart.com
204.15.52.3	A	mail1.maininet.com
204.15.52.3	A	mail.maininet.com
204.15.52.4	A	mail.hoffmancontrols.com
204.15.52.4	A	mail.ccartcc.com
204.15.52.4	A	email.maininet.com
204.15.52.5	A	mail.moveforfree.com
204.15.52.15	A+PTR	ns1.maininet.com
204.15.52.15	PTR	ns1.mainstreetinternet.com
204.15.52.15	A	ns29.maininet.net
204.15.52.16	A+PTR	ns3.maininet.com
204.15.52.16	A	ns133.maininet.com
204.15.52.17	A	sql.maininet.com
204.15.52.20	A	mrtg.maininet.com
204.15.52.20	A	web2.maininet.com
204.15.52.21	A+PTR	m-backup.maininet.com
204.15.52.23	A	adj.maininet.com
204.15.52.24	A	maininet.net
204.15.52.25	A	lanitisassociatesinc.com
204.15.52.28	A+PTR	backup.maininet.com
204.15.52.33	PTR	chenaultsystems.com
204.15.52.33	PTR	ehitec.com
204.15.52.33	PTR	gsoarchitects.com
204.15.52.34	A	mysqladmin.maininet.com
204.15.52.36	PTR	ammonator.com
204.15.52.36	A+PTR	desktopnetworks.com
204.15.52.36	PTR	maininet.net
204.15.52.40	A	secure.maininet.com
204.15.52.42	A	ftp.lafp.com
204.15.52.43	A	ftpmaster.lafp.com
204.15.52.48	A	kvm.maininet.com
204.15.52.49	A	apc.maininet.com
204.15.52.50	A+PTR	ns4.maininet.com
204.15.52.51	A+PTR	ns2.maininet.com
204.15.52.51	A+PTR	ns18.mainstreetinternet.com
204.15.52.51	A+PTR	ns2.mainstreetinternet.com
204.15.52.52	PTR	dpm.maininet.com
204.15.52.52	A+PTR	web1.maininet.com
204.15.52.52	PTR	webtrends.maininet.com
204.15.52.74	A+PTR	moveforfree.com
204.15.52.74	A+PTR	www1.moveforfree.com
204.15.52.74	A	www.moveforfree.com
204.15.52.75	A+PTR	adminski.moveforfree.com
204.15.52.75	A+PTR	adminski1.moveforfree.com
204.15.52.76	A+PTR	locator.moveforfree.com
204.15.52.76	PTR	locator1.moveforfree.com
204.15.52.77	A+PTR	management.moveforfree.com
204.15.52.77	PTR	management1.moveforfree.com
204.15.52.78	A+PTR	multifamilyrelocation.com
204.15.52.78	PTR	www1.multifamilyrelocation.com
204.15.52.78	PTR	www2.multifamilyrelocation.com
204.15.52.79	A+PTR	mffsql.moveforfree.com
204.15.52.79	PTR	mffsql1.moveforfree.com
204.15.52.122	A	ultimatevta.com
204.15.52.127	A	redoakcapital.com
204.15.52.128	A	tgrnow.com
204.15.52.129	A	dalfabric.com
204.15.52.129	A	teamqik.com
204.15.52.129	A	dalcohomesew.com
204.15.52.172	A	web3.maininet.com
204.15.52.173	PTR	amediacreations.com
204.15.52.173	A	www.maininet.com
204.15.52.173	A	mainstreetsolutions.com
204.15.52.192	PTR	mail.cproassociates.com
204.15.52.192	PTR	mail.gsoarchitects.com
204.15.52.192	A+PTR	mail.maininet.net
204.15.52.193	A+PTR	email.maininet.net
204.15.52.193	A	mail.askdrjones.com
204.15.52.193	A	mail.csphoto.net
204.15.52.194	PTR	smtp.maininet.net
204.15.52.194	A	admin.maininet.net
204.15.52.201	A	mffdev.maininet.com
204.15.52.210	A	test.moveforfree.com
204.15.52.232	A	quicksi.com
204.15.52.232	A	www.quicksi.com
204.15.52.240	A+PTR	askdoctorjones.com
204.15.52.240	PTR	askdrjones.com
204.15.52.240	PTR	test.askdoctorjones.com
204.15.52.241	A	cproassoc.com