Robtex

Up: 23.48.48.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 23.48.48.0/23
Down right: 23.48.50.0/23

IP	Type	Hostname
23.48.48.115	A+PTR	a23-48-48-115.deploy.static.akamaitechnologies.com
23.48.48.115	A	e10944.e17.akamaiedge.net
23.48.49.100	PTR	a23-48-49-100.deploy.static.akamaitechnologies.com
23.48.49.168	A+PTR	a23-48-49-168.deploy.static.akamaitechnologies.com
23.48.50.217	PTR	a23-48-50-217.deploy.static.akamaitechnologies.com
23.48.50.240	PTR	a23-48-50-240.deploy.static.akamaitechnologies.com
23.48.51.163	A+PTR	a23-48-51-163.deploy.static.akamaitechnologies.com