Robtex

Up: 80.255.240.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 80.255.248.0/22
Down right: 80.255.252.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
80.255.249.13	A	mail.janssenrecycling.nl
80.255.249.37	A	mail.bouwgrond.nl
80.255.249.37	A	mail.archicom.nl
80.255.249.37	A	mail.medtec-trilandis.nl
80.255.249.45	A	mail2.mercachem.com
80.255.249.109	A	mail.allpa.nl
80.255.249.113	A	glas.peastilburg.com
80.255.249.153	PTR	mail.tito.nl
80.255.249.153	A	mail-in.usedkalmars.com
80.255.249.153	A	mail-in.usedkalmarroro.com
80.255.249.181	A	fallback.bressers.nl
80.255.249.181	A	mail.bressers.nl
80.255.249.181	A	mail-in.bressers.nl
80.255.249.209	A	smtp.monair.nl
80.255.249.245	A	mail2.solis.nl
80.255.250.9	PTR	static.ip-80-255-250-9.signet.nl
80.255.250.9	A	mail.onemen.info
80.255.250.9	A	mail.onemen.net
80.255.250.17	A	combiflor.info
80.255.250.17	A	mail.combiflor.info
80.255.250.73	PTR	static.ip-80-255-250-73.signet.nl
80.255.250.73	A	mail-in-2.infra.jajo.com
80.255.250.74	PTR	static.ip-80-255-250-74.signet.nl
80.255.251.1	A	bergenland.eu
80.255.251.11	A	www.bewindvoerderskantoor.com
80.255.251.11	A	10dagencadeaus.com
80.255.251.11	A	vermolenrides.com
80.255.251.18	PTR	static.ip-80-255-251-18.signet.nl
80.255.251.18	A	ns03.benq.eu
80.255.251.27	A	besaitungsmaschine.de
80.255.251.27	A	tenisplanet.es
80.255.251.27	A	tennisonlineshop.nl
80.255.251.34	A	mail-in.glow-eindhoven.nl
80.255.251.47	A	media.vacansoleil.com
80.255.251.60	PTR	static.ip-80-255-251-60.signet.nl
80.255.251.60	A	grotelimburgspel.nl
80.255.251.73	A	inafabulina.com
80.255.251.73	A	smtp.figment-it.com
80.255.251.73	A	personeelsdossieronline.nl
80.255.251.81	A	buyahorse.nl
80.255.251.81	A	mail.buyahorse.nl
80.255.251.87	A	rubyfest.nl
80.255.251.87	A	rubyfest.be
80.255.251.101	PTR	static.ip-80-255-251-101.signet.nl
80.255.251.101	A	ns1.realtime.eu
80.255.251.102	PTR	static.ip-80-255-251-102.signet.nl
80.255.251.102	A	ns2.realtime.eu
80.255.251.139	A	mail-in.dewert.nl
80.255.251.186	PTR	static.ip-80-255-251-186.signet.nl
80.255.251.186	A	realtime.eu
80.255.251.188	A	greenandso.nl
80.255.251.230	A	wijrijden.nl
80.255.252.1	PTR	static.ip-80-255-252-1.signet.nl
80.255.252.1	A	webmail.hulstvoorelkaar.nl
80.255.252.25	PTR	static.ip-80-255-252-25.signet.nl
80.255.252.25	A	mail-in.sr-kuvert.nl
80.255.252.25	A	mail-in.vsr.nl
80.255.252.29	A	*.vsr.nl
80.255.252.49	A+PTR	mail.gotele.com
80.255.252.50	PTR	static.ip-80-255-252-50.signet.nl
80.255.252.52	A	mail.gotele.com
80.255.252.52	A	mail4.goconnect.be
80.255.252.52	A	mail2.exertisgoconnect.eu
80.255.252.58	PTR	mail.newbridges.nl
80.255.252.60	A	*.newbridges.nl
80.255.252.60	A	softamed.nl
80.255.252.60	A	newbridges.nl
80.255.252.65	PTR	static.ip-80-255-252-65.signet.nl
80.255.252.72	PTR	static.ip-80-255-252-72.signet.nl
80.255.252.73	PTR	mx1.tarq.nl
80.255.252.73	A	www.mytarq.nl
80.255.252.73	A	*.mytarq.nl
80.255.252.144	PTR	static.ip-80-255-252-144.signet.nl
80.255.252.147	A+PTR	mx02.van-nieuwpoort.nl
80.255.252.150	A	mail.siemessandundkies.de
80.255.252.150	A	mail-in.welwonen.nl
80.255.252.150	A	mail.grindenzand.nl
80.255.252.161	A	mail.polar-express.nl
80.255.252.205	A	mail.evo.nl
80.255.252.205	A	mail-in.evo.nl
80.255.252.225	PTR	mx.ongc.nl
80.255.252.225	A	remote.ongc.nl
80.255.252.225	A	ongc.nl
80.255.252.226	PTR	static.ip-80-255-252-226.signet.nl
80.255.252.226	A	mail.hesgroup.nl
80.255.252.234	A	mail.campen.nl
80.255.252.234	A	mail2.campen.nl
80.255.252.245	A	mail-in.happyview.nl
80.255.252.249	PTR	static.ip-80-255-252-249.signet.nl
80.255.252.249	A	mail.tti-bv.com
80.255.252.249	A	mail.nijg.com
80.255.252.252	A	mail.nijg.com
80.255.253.9	A	mail-in.hienfeld.com
80.255.253.9	A	mail-in.horsesecure.nl
80.255.254.75	PTR	static.ip-80-255-254-75.signet.nl
80.255.254.75	A	firmajami.nl
80.255.254.76	A	mail2.firmajami.nl
80.255.254.85	A	heeze-kempenhaeghe1-cl.signet.nl
80.255.254.195	PTR	static.ip-80-255-254-195.signet.nl
80.255.254.195	A	lahd.lans.nl
80.255.254.240	PTR	static.ip-80-255-254-240.signet.nl
80.255.255.6	A	gateway.dsl.aragorn.nl
80.255.255.6	A	email-backup.aragorn.nl
80.255.255.21	PTR	static.ip-80-255-255-21.signet.nl
80.255.255.89	A	mail-in.blickmarktonderzoek.com
80.255.255.97	A	mail.samenwonenvastgoed.nl
80.255.255.130	PTR	static.ip-80-255-255-130.signet.nl
80.255.255.213	A	mail-in.impect.nl
80.255.255.213	A	mail.impect.nl