Robtex

Up: 204.89.130.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 204.89.131.0/25
Down right: 204.89.131.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
204.89.131.9	A+PTR	ralph.gbcx.net
204.89.131.11	A+PTR	rpc3.gbcx.net
204.89.131.12	A+PTR	rpc1.gbcx.net
204.89.131.12	A	sentry.gbcx.net
204.89.131.19	A	rpc2.gbcx.net
204.89.131.20	A	rpc4.gbcx.net
204.89.131.21	A	pdu1.gbcx.net
204.89.131.23	PTR	rpc7.gbcx.net
204.89.131.23	A	sql001.gbcx.net
204.89.131.30	PTR	ns20.voicegateway.com
204.89.131.32	PTR	naii.com
204.89.131.37	PTR	www.newswise.com
204.89.131.43	PTR	www.astrographics.com
204.89.131.44	PTR	available.gbcx.net
204.89.131.44	A	hustle.szarka.net
204.89.131.54	PTR	www.ez-dock.com
204.89.131.55	PTR	web3.rpdesign.com
204.89.131.55	A	interfinepapers.com
204.89.131.60	PTR	ns1.serik.co.za
204.89.131.74	A	node.gbcx.net
204.89.131.83	PTR	dpp3.gbcx.net
204.89.131.83	A	ns1.dpp.parkflowers.com
204.89.131.85	PTR	ns1.dpp.parkflowers.com
204.89.131.89	A	mail.net-smith.net
204.89.131.93	PTR	ns1.bluebox.co.za
204.89.131.93	A	garrison.co.za
204.89.131.93	A	mail.ukznpress.co.za
204.89.131.104	A	scimonkey.net
204.89.131.104	A	graysmith.us
204.89.131.117	PTR	available.gbcx.net
204.89.131.122	PTR	ns3.infospider.com
204.89.131.123	PTR	ns3.netdojo.net
204.89.131.138	A+PTR	trixie.gbcx.net
204.89.131.138	A	www.pbxservers.net
204.89.131.138	A	www.saturn5.net
204.89.131.139	A	mail2.gbcx.net
204.89.131.143	A	alice.gbcx.net
204.89.131.145	A	ssl.macconnect.com
204.89.131.148	PTR	www.macdock.com
204.89.131.150	PTR	x3.macdock.com
204.89.131.150	A	melompat.info
204.89.131.151	PTR	email.macdock.com
204.89.131.153	PTR	x1.macdock.com
204.89.131.159	PTR	dylan2.macserve.net
204.89.131.182	A	aventura03.gbcx.net
204.89.131.192	PTR	newswise.com
204.89.131.210	A+PTR	berkus.gbcx.net
204.89.131.210	A	myimaginarium.com
204.89.131.212	A	web1.rpdesign.com
204.89.131.213	A+PTR	ns1.rpdesign.com
204.89.131.213	A	mx.rodneycole.com
204.89.131.213	A	www.rpdns.com
204.89.131.218	PTR	mail.rpdesign.com
204.89.131.218	A	mx.866wallpad.com
204.89.131.218	A	mx.infosafedeposit.com
204.89.131.227	PTR	ns1.macdock.com
204.89.131.237	PTR	setauket4.gbcx.net
204.89.131.249	A	mail.gearprices.com