Robtex

Up: 72.246.248.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 72.246.252.0/23
Down right: 72.246.254.0/23

IP	Type	Hostname
72.246.252.138	PTR	a72-246-252-138.deploy.akamaitechnologies.com
72.246.253.225	PTR	a72-246-253-225.deploy.akamaitechnologies.com
72.246.254.12	PTR	a72-246-254-12.deploy.akamaitechnologies.com
72.246.254.88	A+PTR	a72-246-254-88.deploy.static.akamaitechnologies.com
72.246.255.172	PTR	a72-246-255-172.deploy.akamaitechnologies.com
72.246.255.172	A	mail.kabbalah.com