Robtex

Up: 23.48.48.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 23.48.52.0/23
Down right: 23.48.54.0/23

IP	Type	Hostname
23.48.52.11	PTR	a23-48-52-11.deploy.static.akamaitechnologies.com
23.48.53.234	A+PTR	a23-48-53-234.deploy.static.akamaitechnologies.com
23.48.54.16	A+PTR	a23-48-54-16.deploy.static.akamaitechnologies.com