Robtex

Up: 109.232.40.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 109.232.42.0/24
Down right: 109.232.43.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
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
109.232.42.39	A	portal.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