Robtex

Up: 2600:1480:b000::/47
Can't show all results, try to descend to a more specific CIDR
Down left: 2600:1480:b000::/49
Down right: 2600:1480:b000:8000::/49

IP	Type	Hostname
2600:1480:b000::40	A+PTR	a5-64.akam.net
2600:1480:b000::40	PTR	ns6-64.akam.net
2600:1480:b000::41	A+PTR	a5-65.akam.net
2600:1480:b000::41	PTR	ns6-65.akam.net
2600:1480:b000::42	A+PTR	a5-66.akam.net
2600:1480:b000::42	PTR	ns6-66.akam.net
2600:1480:b000::43	PTR	ns6-67.akam.net
2600:1480:b000::43	A+PTR	a5-67.akam.net