Robtex

Up: 78.100.77.0/24
Can't show all results, try to descend to a more specific CIDR
Down left: 78.100.77.0/26
Down right: 78.100.77.64/26
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
78.100.77.99	A+PTR	mail.alwatanytravels.com
78.100.77.99	PTR	mail.fibrafoil.com
78.100.77.99	A+PTR	mail.nas-food.com
78.100.77.100	A	mail.plymit.com
78.100.77.115	A+PTR	mail.aafmq.com
78.100.77.117	PTR	mail.aafmq.com