Robtex

Up: 193.138.152.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 193.138.156.0/23
Down right: 193.138.158.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
193.138.156.2	A+PTR	mail.level421.com
193.138.156.2	A+PTR	mail.city-netze.de
193.138.156.2	PTR	mail.traveltronic.de
193.138.156.9	PTR	admin.level421.com
193.138.156.9	A	windowssucks.nl
193.138.156.41	A	mail.dekoopjesmarkt.eu
193.138.156.41	A	mail.booman.eu
193.138.156.41	A	mail.print2000.eu
193.138.156.100	A	greenstar.level421.com
193.138.156.210	A	mail.gevavi.dk
193.138.156.210	A	gevavi.dk
193.138.157.6	A	casinoservices.nl
193.138.157.6	A	casinoos.nl
193.138.157.11	A	generatortest.nl
193.138.157.11	A	generatorservice.nl
193.138.157.11	A	spanningsregelaars.nl
193.138.157.17	A	vuilwater.info
193.138.157.20	A	westlife.nl
193.138.157.22	A	mail.veendam4-ever.nl
193.138.157.28	A	mail.eco-leasing.org
193.138.157.28	A	mail.goodkarma.nl
193.138.157.28	A	mail.eco-leasing.nl
193.138.157.32	A	mail.veinoplus.nl
193.138.157.33	A	mail.core-teq.com
193.138.157.33	A	*.sgba.nl
193.138.157.33	A	sgba.nl
193.138.157.39	A	beeldg.nl
193.138.157.39	A	mail.beeldg.nl
193.138.157.41	A	*.coolrec.com
193.138.157.43	A	mail.c4j.nl
193.138.157.43	A	c4j.nl
193.138.157.43	A	kaartinactie.be
193.138.157.44	A	ventika.nl
193.138.157.46	A	designed2b.nl
193.138.157.55	A	villavijf.com
193.138.157.56	A	dikhooff.nl
193.138.157.68	A+PTR	publicdns1.level421.com
193.138.157.68	A	publicdns1.traveltronic.net
193.138.157.68	A	publicdns1.traveltronic.de
193.138.157.71	PTR	www.city-netze.de
193.138.157.71	PTR	city-netze.de
193.138.157.71	PTR	www.senden-connect.de
193.138.157.143	A	mail.suedguss.de
193.138.157.190	A	nextstepprojecten.nl
193.138.157.190	A	onderwijsopmaat.com
193.138.157.190	A	leansixsushi.com
193.138.157.193	A	mail.fam-verburg.nl
193.138.157.193	A	vanberkesteijn.nl
193.138.157.193	A	mail.benvenuti.nl
193.138.157.196	A	mail.pimpyourdesktop.eu
193.138.157.196	A	business1.digitalus.nl
193.138.157.196	A	pimpyourdesktop.eu
193.138.157.202	A	mail.dezwerver.nl
193.138.157.203	A	mail.10minutesexpertreview.com
193.138.157.216	A	mail.linkstarstudio.nl
193.138.157.216	A	www.fotosg.nl
193.138.157.216	A	mail.fotosg.nl
193.138.157.227	A	mail.concept8wiki.nl
193.138.157.227	A	concept8wiki.nl
193.138.157.244	A	138.157.244.prettycherie.dk
193.138.157.244	A	193.138.157.244.prettycherie.dk
193.138.157.244	A	244.prettycherie.dk
193.138.157.250	A	interiormatters.nl
193.138.157.252	A	spy3k.com
193.138.157.252	A	mail.spy3k.com
193.138.157.254	A	subcouture.eu
193.138.158.4	A	mxuc.dental-concept-systems.com
193.138.158.4	A	193.138.158.4.ip-space-by.digitalus.nl
193.138.158.4	A	mxuc.bredent-group.com
193.138.158.5	A	mail.dj-kid.com
193.138.158.20	A	iw.dyndns.biz
193.138.158.22	A	picturefamily.net
193.138.158.22	A	picturefamily.com
193.138.158.22	A	businessfamily.nl
193.138.158.26	A	mail.shax.mobi
193.138.158.26	A	mail.maydate.nl
193.138.158.27	A	canal-x.eu
193.138.158.27	A	mail.canal-x.eu
193.138.158.40	A	huuskesconsumers.nl
193.138.158.40	A	miratec-it.nl
193.138.158.40	A	mail.serviezen.nl
193.138.158.44	A	mail.flowermodels.com
193.138.158.44	A	193.138.158.44.ip-space-by.digitalus.nl
193.138.158.44	A	mail.modelsaround.com
193.138.158.46	A	restaurantstilburg.nl
193.138.158.53	A	mail.transfertwoprint.nl
193.138.158.53	A	mail.studio5.nl
193.138.158.53	A	www.stylgraphix.nl
193.138.158.56	A	mail.pnocafe.nl
193.138.158.56	A	pnocafe.nl
193.138.158.56	A	dhvgroningen.nl
193.138.158.78	A	mail.campingleconfluent.be
193.138.158.78	A	mail.slaapzakwinkel.eu
193.138.158.78	A	campingmoulindudiable.be
193.138.158.92	A	gebruiktevolkswagen.nl
193.138.158.92	A	mail.concept8.eu
193.138.158.92	A	gebruiktecitroen.nl
193.138.158.105	A	193.138.158.105.ip-space-by.digitalus.nl
193.138.158.109	A	193.138.158.109.ip-space-by.digitalus.nl
193.138.158.124	A	mail.visschedijkpresentaties.com
193.138.158.136	A	bootybox.co.uk
193.138.158.139	A+PTR	faraday.esu.eu
193.138.158.140	A	mail.marcelolislagers.com
193.138.158.140	A	mail.marcelolislagers.nl
193.138.159.7	A	rulezforum.nl
193.138.159.7	A	mail.rulezforum.nl
193.138.159.14	A	pop.frieslandcamper.nl
193.138.159.14	A	*.frieslandcamper.nl
193.138.159.14	A	langhoutencazemier.nl
193.138.159.38	A	193.138.159.38.ip-space-by.digitalus.nl
193.138.159.82	A	193.138.159.82.ip-space-by.digitalus.nl
193.138.159.150	A	yourwww.be
193.138.159.150	A	mail.yourwww.be
193.138.159.153	A	mail.passionals.com
193.138.159.153	A	solong.nl
193.138.159.153	A	mail.simschat.nl