Robtex

Up: 185.65.48.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 185.65.52.0/23
Down right: 185.65.54.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
185.65.52.18	A+PTR	mail.instaan.nl
185.65.52.62	A+PTR	remote.dkmakelaars.nl
185.65.52.122	A	base.mfsupport.com
185.65.52.182	A	mail.brospuntcom.com
185.65.54.18	A	mail.ingburoarnhem.com
185.65.54.21	A+PTR	mail.ingburoarnhem.com
185.65.54.106	A	mail.stichtingbio.nl
185.65.54.131	A+PTR	mail.vir.nl
185.65.54.134	A	arnhem.vir.nl
185.65.54.134	A	arnhem01.vir.nl
185.65.54.188	PTR	mailserver.strategie-arch.nl
185.65.54.188	A	mail.strategie-arch.nl
185.65.54.189	A	proxsys.edwork.nl
185.65.54.222	A	ghca.nl
185.65.55.21	A	www.kerstpakkettten.nl
185.65.55.21	A	kerstpakkettten.nl
185.65.55.21	A	mail.kerstpakkettten.nl
185.65.55.23	A+PTR	mail.kodision.nl
185.65.55.51	PTR	mail.e-care.nl
185.65.55.53	A	tassrepairinfo.nl
185.65.55.53	A	frseurope.nl
185.65.55.53	A	e-care.nl
185.65.55.56	A	e-care.eu
185.65.55.56	A	www.e-care.eu