Robtex

Up: 5.1.78.0/24
Can't show all results, try to descend to a more specific CIDR
Down left: 5.1.78.0/26
Down right: 5.1.78.64/26
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
5.1.78.10	A+PTR	mx1-gateway.tz-rz.net
5.1.78.10	A	mx01.tz-rz.net
5.1.78.10	A	mx02.tz-rz.net
5.1.78.20	PTR	web.tz-rz.net
5.1.78.20	A	druckepack24.com
5.1.78.20	A	motoren-schwarte.de
5.1.78.24	A+PTR	web.safety-concepts.de
5.1.78.24	A	safety-concepts.de