Robtex

Up: 204.152.40.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 204.152.42.0/24
Down right: 204.152.43.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
204.152.42.1	A+PTR	core1.mcsp.net
204.152.42.2	A+PTR	core2.mcsp.net
204.152.42.3	A	gw1.mcsp.net
204.152.42.19	A+PTR	wp19.mcsp.net
204.152.42.20	A+PTR	wp20.mcsp.net
204.152.42.44	A	worldxlink.com
204.152.42.45	A+PTR	skycup.mcsp.net
204.152.42.45	A	energymarketers.com
204.152.42.45	A	nest-org.com
204.152.42.46	A	itgiam.com
204.152.42.46	A	infiniam.com
204.152.42.46	A	itgl.net
204.152.42.47	PTR	multisite-wp.digiland.com
204.152.42.47	A	luvingtouch.com
204.152.42.51	A	debates.lan2wan.com
204.152.42.52	A+PTR	wp52.mcsp.net
204.152.42.70	A	wpdqt.mcsp.net
204.152.42.71	A	availwest.mcsp.net
204.152.42.72	A	edock.mcsp.net
204.152.42.77	A	gw77-mclean.mcsp.net
204.152.42.89	A	exconf.mcsp.net
204.152.42.101	A+PTR	mail1.digiland.com
204.152.42.101	A	mail20.digiland.com
204.152.42.102	A	mail2.digiland.com
204.152.42.110	A+PTR	mail10.digiland.com
204.152.42.121	A+PTR	email.digiland.com
204.152.42.130	A+PTR	ns.digiland.com
204.152.42.130	A	dns.commerchant.com
204.152.42.130	A	access1.lan2wan.com
204.152.42.131	A	dialisp.net
204.152.42.155	A+PTR	mail155.digiland.com
204.152.42.155	A	digiland.com
204.152.42.156	A	mail1.worldxlink.com
204.152.42.157	A	mail1.dc-link.com
204.152.42.157	A	dc-link.com
204.152.42.192	PTR	mails.digiland.com
204.152.42.192	A	access3.lan2wan.net
204.152.42.192	A	mx2.commerchant.com
204.152.42.193	PTR	mail1.tnhc.com
204.152.42.193	A	mail2.lan2wan.com
204.152.42.193	A	mx1.lan2wan.net
204.152.42.194	A	mail1.dialisp.net
204.152.42.199	A+PTR	core3.mcsp.net
204.152.42.200	A	wp200.mcsp.net
204.152.42.201	PTR	mailo.mcsp.net
204.152.42.202	PTR	mailp.mcsp.net
204.152.42.205	PTR	mailt.mcsp.net
204.152.42.205	A	mail2.lan2wan.com
204.152.42.205	A	maila.mcsp.com
204.152.42.218	A	ci-gw.mcsp.net
204.152.42.241	A	clone241.mcsp.net
204.152.42.252	A	252.mcsp.net
204.152.43.53	A	wp53.mcsp.net