Robtex

Up: 109.232.40.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 109.232.40.0/23
Down right: 109.232.42.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
109.232.40.98	A	tttl.nl
109.232.40.99	PTR	mail.strahlen.org
109.232.40.99	A	www.strahlen.org
109.232.40.99	A	strahlen.org
109.232.40.129	A+PTR	ns1.virtualcenter.nl
109.232.40.130	A+PTR	nscache1.virtualcenter.nl
109.232.40.131	A+PTR	ns2.virtualcenter.nl
109.232.40.132	A+PTR	nscache2.virtualcenter.nl
109.232.41.25	A+PTR	smtp.stichtingcamelot.nl
109.232.41.25	A	stichtingcamelot.nl
109.232.41.25	A	mail.stichtingcamelot.nl
109.232.41.33	A	mail.ikl.nl
109.232.41.36	A+PTR	mail.ahrend.com
109.232.41.36	A+PTR	mail.schoolmeubelen.com
109.232.41.36	A	mail.royalahrend.com
109.232.41.75	A+PTR	mail.kreuze.nl
109.232.41.97	A	mail.ikr.nl
109.232.41.103	A+PTR	smtp.iknl.nl
109.232.41.118	A+PTR	mail.profcore.nl
109.232.41.132	PTR	mail.rsm-wmv.nl
109.232.41.135	A	mail.rsm-wmv.nl
109.232.41.145	A	chios.sycada.com
109.232.41.146	A+PTR	lesbos.sycada.com
109.232.41.147	PTR	samos.sycada.com
109.232.41.147	A	360-ev.com
109.232.41.147	A	myfleetmanagement.com
109.232.41.148	A+PTR	kos.sycada.com
109.232.41.150	A+PTR	kithnos.sycada.com
109.232.41.150	A	tristan.sycada.com
109.232.41.150	A	isolde.sycada.com
109.232.41.151	PTR	ip151.sycada.com
109.232.41.152	A+PTR	porgy.sycada.com
109.232.41.153	A+PTR	mconsole.sycada.com
109.232.41.164	A	mail.sevagram.nl
109.232.41.164	A	mail.moviera.nl
109.232.41.182	A	oncoguide.nl
109.232.41.184	A	www.iknl.nl
109.232.41.209	A	smtp.ggdzl.nl
109.232.41.217	A	mail.ggdzl.nl
109.232.41.225	A	z-koo.com
109.232.41.226	A+PTR	smtp.heemwonen.nl
109.232.41.252	PTR	vcdrtr01.virtualcenter.nl
109.232.42.4	PTR	webmail.woonpunt.nl
109.232.42.15	A+PTR	mail.woonpunt.nl
109.232.42.34	A+PTR	citrix.maastro.nl
109.232.42.35	PTR	mail.maastro.nl
109.232.42.35	A	mail.maastro.org
109.232.42.35	A	mail.maastro.info
109.232.42.36	A+PTR	ftp.maastro.nl
109.232.42.36	A	eurocat.info
109.232.42.36	A	mistir.net
109.232.42.38	PTR	topdesk.maastro.nl
109.232.42.40	A+PTR	testportal.maastro.nl
109.232.42.47	A	radiomics.org
109.232.42.47	A	cancerdata.org
109.232.42.53	A	as-spam-01.maastro.com
109.232.42.53	A	as-spam-01.maastro.nl
109.232.42.65	A	webparcel.be
109.232.42.65	A	easy2send.be
109.232.42.86	A+PTR	smtp.virenze.nl
109.232.42.110	A+PTR	mail.openline.nl
109.232.42.110	A	mail.openline.be
109.232.42.130	PTR	mail.halt.nl
109.232.42.130	A	mail.stichtinghalt.nl
109.232.42.132	A	webmail.halt.nl
109.232.42.161	PTR	mail.dpdwebparcel.be
109.232.42.178	PTR	mail.cleanlease.be
109.232.42.178	PTR	mail.wasserijrapid.be
109.232.42.178	A+PTR	mail.cleanlease.com
109.232.42.194	A+PTR	smtp.kredietbanklimburg.nl
109.232.42.243	A	smtp.zrti.nl
109.232.42.245	A	zrti.nl
109.232.43.2	A+PTR	smtp.wpm.nl
109.232.43.5	A	mail2.wpm.nl
109.232.43.5	A	mail.wpm.nl
109.232.43.91	PTR	esa.notisonline.nl
109.232.43.91	A	mail.waarvanakte.nl
109.232.43.91	A	mail.zeestratenhagemann.nl
109.232.43.94	A	mail.redfoxert.com
109.232.43.100	A	done.repair
109.232.43.100	A	samsung.drmobile.nl
109.232.43.100	A	drmobile.eu
109.232.43.145	A+PTR	smtp.brbbv.com
109.232.43.186	A+PTR	smtp.amac.nl
109.232.43.214	A	mail.hekkertautogroep.nl
109.232.43.228	A+PTR	mail.amaliazorg.nl