Robtex

Up: 2a0b:1640::/46
Can't show all results, try to descend to a more specific CIDR
Down left: 2a0b:1640::/48
Down right: 2a0b:1640:1::/48

IP	Type	Hostname
2a0b:1640:1:1:1:1:cc:962c	A+PTR	mf34-de.cloudmails.net
2a0b:1640:1:1:1:1:cc:962c	A	mailforward34.cloudns.net
2a0b:1640:1:1:1:1:fc:a77d	PTR	mf14-de.cloudmails.net
2a0b:1640:1:1:1:1:fc:a77d	A	mailforward14.cloudns.net
2a0b:1640:1:1:1:1:1d9:8ba7	A	mail.quoucroi-brais.fr