Robtex

Up: 194.77.72.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 194.77.72.0/23
Down right: 194.77.74.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
194.77.73.48	PTR	n13-48.dslaccess.de
194.77.73.73	PTR	mail.lamed.de
194.77.73.73	A	mail2.lamed.de
194.77.73.217	PTR	n13-217.dslaccess.de
194.77.73.219	A	securemail.baltic-online.net
194.77.73.246	A	mail.karst-raumausstattung.de
194.77.74.6	A	jessica-jens.info
194.77.74.70	A	mail.cdt-gmbh.de
194.77.74.70	A	nullmx.efficientconstruction.com
194.77.74.102	A	mail.strohheker.de
194.77.74.152	A	probiers.net
194.77.75.18	A	vclass.de
194.77.75.25	PTR	n15-25.dslaccess.de
194.77.75.25	A	nowack.eu
194.77.75.25	A	mail.fafudsys.net
194.77.75.50	PTR	n15-50.dslaccess.de
194.77.75.60	PTR	n15-60.dslaccess.de
194.77.75.60	A	zwoelfelf.org
194.77.75.61	PTR	n15-61.dslaccess.de
194.77.75.61	A	mx0.jixxi.de
194.77.75.61	A	mx0.jixxi.net
194.77.75.98	PTR	mail.argekap.de
194.77.75.181	PTR	n15-181.dslaccess.de
194.77.75.181	A	mailin.pavis.de
194.77.75.189	PTR	n15-189.dslaccess.de
194.77.75.205	PTR	n15-205.dslaccess.de
194.77.75.206	A	mail.pev-gmbh.de
194.77.75.245	PTR	n15-245.dslaccess.de
194.77.75.246	A	mail.guggolz.net
194.77.75.254	A	lxgw-henrich.henrich.net