Robtex

Up: 23.45.48.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 23.45.52.0/23
Down right: 23.45.54.0/23

IP	Type	Hostname
23.45.52.93	PTR	a23-45-52-93.deploy.static.akamaitechnologies.com
23.45.52.135	A	a23-45-52-135.deploy.static.akamaitechnologies.com
23.45.53.50	PTR	a23-45-53-50.deploy.static.akamaitechnologies.com
23.45.54.92	A	a23-45-54-92.deploy.static.akamaitechnologies.com
23.45.55.92	A+PTR	a23-45-55-92.deploy.akamaitechnologies.com
23.45.55.108	PTR	a23-45-55-108.deploy.static.akamaitechnologies.com
23.45.55.247	A+PTR	a23-45-55-247.deploy.akamaitechnologies.com