Robtex

Up: 79.173.128.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 79.173.136.0/22
Down right: 79.173.140.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
79.173.138.3	A	mail-1.rorc.org
79.173.138.38	A+PTR	mail.bloomsburyauctions.com
79.173.138.38	A	craigmillar.org
79.173.138.42	PTR	mail.globalmaritime.com
79.173.138.42	A	wimax.globalmaritime.com
79.173.138.142	A	mtgllp.org
79.173.138.157	A	mail1.turquoisebranding.com
79.173.138.226	A+PTR	mail.ihc.co.uk
79.173.138.230	A	mailserver.workingwell.co.uk
79.173.139.182	A	mail2.horizon-asset.co.uk
79.173.139.195	A	hasmacapital.com
79.173.139.242	A+PTR	79-173-139-242.rtkl.com
79.173.140.97	PTR	onslow-capital.com
79.173.140.98	A	whitebeam.com
79.173.140.106	PTR	lon-sbs-01.pureintl.com
79.173.140.113	PTR	mail.permian.co.uk
79.173.140.116	PTR	kcsgroup.com
79.173.140.116	PTR	knightsbridgecs.com
79.173.140.139	A	merakilab.cisco.com
79.173.141.126	A	wardrobe.augustaco.com
79.173.141.126	A	mail.augustaco.net
79.173.141.126	A	wardrobe.augustaco.net
79.173.141.134	PTR	artgroup.com
79.173.141.134	PTR	mail.artgroup.com
79.173.141.190	PTR	completecomms.com
79.173.141.190	PTR	pyetv.com
79.173.141.190	PTR	celador.co.uk
79.173.142.66	A	smtp.rain-maker.co.uk
79.173.142.140	A	mail.academyclass.com
79.173.142.162	PTR	mail.corporatefx.co.uk
79.173.142.162	A	mail3.corporatefx.co.uk
79.173.142.228	PTR	webmail.islamchannel.tv
79.173.143.35	A	mail.fovience.com
79.173.143.131	A	mail.methorioscapital.com
79.173.143.131	A	mail.gaiasecurities.com
79.173.143.131	A	mail.fortesecurities.com
79.173.143.136	PTR	m1.serverpost.net
79.173.143.136	PTR	mail.serverpost.net
79.173.143.136	A	m1.kaghaan.com
79.173.143.138	A	dns1.viewhosting.com
79.173.143.140	A	mail.ferrosrl.com
79.173.143.141	PTR	mail.fortesecurities.co.uk
79.173.143.145	A	mail2.touchlocal.com
79.173.143.146	A	xmail.webportalpro.com
79.173.143.152	A	mail2.webportalpro.com
79.173.143.152	A	mail1.webportalpro.com
79.173.143.234	PTR	mailfour.riskcare.com
79.173.143.234	A	mailfouralt.riskcare.com
79.173.143.238	A	gateway.riskcare.com