Robtex

Up: 81.29.0.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 81.29.0.0/21
Down right: 81.29.8.0/21

IP	Type	Hostname
81.29.0.1	A	fe01-amsix01.mfis.net
81.29.0.2	PTR	unassigned.mfis.net
81.29.0.5	A	mail.joshdodds.com
81.29.0.5	A	xchange.mfis.net
81.29.0.5	A	mail.c4ip.com
81.29.0.16	PTR	unassigned.mfis.net
81.29.0.21	A	fe7-170-ams02.mfis.net
81.29.0.22	A	vl170-op-ams.mfis.net
81.29.0.30	A	ams-pbx.mfis.net
81.29.0.50	PTR	unassigned.mfis.net
81.29.0.70	A	ma01.mfis.net
81.29.0.250	A	sw1.mfis.net
81.29.0.251	A	pwr2.mfis.net
81.29.0.253	A	pwr0.mfis.net
81.29.0.254	A	sw0.mfis.net
81.29.1.0	PTR	unassigned.mfis.net
81.29.1.1	A+PTR	fe01-amsix01.mfis.net
81.29.1.2	PTR	unassigned.mfis.net
81.29.1.2	A	ns3.netinet.si
81.29.1.2	A	ns2.mfis.net
81.29.1.3	PTR	unassigned.mfis.net
81.29.1.8	A	reinder.nl
81.29.1.19	PTR	unassigned.mfis.net
81.29.1.19	A	italio.psilon.org
81.29.1.21	A	dikkevinger.nl
81.29.1.30	A	mf.lamer.nl
81.29.1.31	A	pronstar.dikkevinger.nl
81.29.1.36	A	sinned.dikkevinger.nl
81.29.1.39	A	terminappie.nl
81.29.1.40	A	is.doortje.org
81.29.1.46	A	tuna.mfis.net
81.29.1.50	A	www2.mfis.net
81.29.1.51	PTR	unassigned.mfis.net
81.29.1.52	A	c4ip.net
81.29.1.52	A	www.c4ip.com
81.29.1.52	A	c4ip.com
81.29.1.64	PTR	unassigned.mfis.net
81.29.1.66	PTR	unassigned.mfis.net
81.29.1.80	PTR	unassigned.mfis.net
81.29.1.83	PTR	unassigned.mfis.net
81.29.1.112	PTR	unassigned.mfis.net
81.29.1.129	PTR	unassigned.mfis.net
81.29.1.130	PTR	unassigned.mfis.net
81.29.1.131	PTR	dsl-131.priv.ams.mfis.nl
81.29.1.145	PTR	unassigned.mfis.net
81.29.1.226	PTR	unassigned.mfis.net
81.29.1.227	PTR	unassigned.mfis.net
81.29.1.241	PTR	unassigned.mfis.net
81.29.1.244	A	a-server.mainframe.nl
81.29.1.245	A	new-mail.mainframe.nl
81.29.1.250	A	a-mail-server.mainframe.nl
81.29.1.251	A	a-web-proxy.mainframe.nl
81.29.2.1	A	fe01-amsix01.mfis.net
81.29.2.2	PTR	ns3.mfis.net
81.29.2.150	A	pl.mfis.net
81.29.3.1	A	fe01-amsix01.mfis.net
81.29.3.30	A	www.mfis.net
81.29.3.30	A	mfis.nl
81.29.3.32	PTR	unassigned.mfis.net
81.29.3.32	A	joshdodds.com
81.29.3.49	PTR	unassigned.mfis.net
81.29.3.51	PTR	unassigned.mfis.net
81.29.3.151	A	squid.mfis.net
81.29.3.224	PTR	unassigned.mfis.net
81.29.4.1	A	fe01-amsix01.mfis.net
81.29.4.2	PTR	unassigned.mfis.net
81.29.4.2	A	baby.mainframe.nl
81.29.4.16	A	halibut.mfis.net
81.29.5.2	A	vpn.mfis.net
81.29.5.3	A+PTR	hq.c4ip.com
81.29.7.179	PTR	unassigned.mfis.net
81.29.8.32	PTR	unassigned.mfis.net
81.29.8.49	PTR	unassigned.mfis.net
81.29.8.97	PTR	unassigned.mfis.net
81.29.8.144	PTR	unassigned.mfis.net
81.29.9.130	PTR	unassigned.mfis.net
81.29.9.226	PTR	unassigned.mfis.net
81.29.10.2	A	vpn-03.mfis.net
81.29.10.131	PTR	unassigned.mfis.net
81.29.10.209	PTR	unassigned.mfis.net
81.29.11.64	PTR	unassigned.mfis.net
81.29.11.195	PTR	unassigned.mfis.net
81.29.12.241	PTR	unassigned.mfis.net
81.29.13.82	PTR	unassigned.mfis.net
81.29.14.66	PTR	unassigned.mfis.net
81.29.14.114	PTR	unassigned.mfis.net
81.29.15.0	PTR	unassigned.mfis.net
81.29.15.65	PTR	unassigned.mfis.net
81.29.15.161	PTR	unassigned.mfis.net