Robtex

Up: 208.56.18.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 208.56.19.0/25
Down right: 208.56.19.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
208.56.19.2	A	ns.abtnetwork.com
208.56.19.3	PTR	drivewayalarm.com
208.56.19.4	A	mail.christianwebcrawler.com
208.56.19.4	A	mail.christianwebcrawler.net
208.56.19.4	A	christianwebcrawler.com
208.56.19.10	PTR	ladycash.net
208.56.19.13	PTR	christianhearts.com
208.56.19.13	A	mail.christianhearts.com
208.56.19.13	A	mail.onlinechristiansingles.com
208.56.19.25	A+PTR	axex.com.ar
208.56.19.25	A	mail.axex.com.ar
208.56.19.27	A	18002canyon.net
208.56.19.27	A	mail.18002canyon.net
208.56.19.48	PTR	capnredbeards.com
208.56.19.64	PTR	demosite.gr
208.56.19.93	PTR	61thriftpower.com
208.56.19.124	PTR	ns2.berrico.com
208.56.19.129	A	mail.psrman.com
208.56.19.129	A	psrman.com
208.56.19.136	PTR	ilovejesus.net
208.56.19.153	PTR	adesign.com
208.56.19.156	PTR	newcybage.alabanza.com
208.56.19.156	A	mail.newcybage.alabanza.com
208.56.19.157	A	devel-1.newcybage.alabanza.com
208.56.19.158	PTR	tpkcet2.com
208.56.19.158	A	mail.devel-2-park.newcybage.alabanza.com
208.56.19.158	A	devel-2.newcybage.alabanza.com
208.56.19.200	PTR	shepherdnetwork.org
208.56.19.212	PTR	greypoint.net
208.56.19.219	PTR	asapnet.gr
208.56.19.228	A+PTR	ubpoa.org
208.56.19.228	A	mail.ubpoa.org
208.56.19.251	PTR	sepeda.com