Robtex

Up: 23.38.80.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 23.38.84.0/23
Down right: 23.38.86.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
23.38.84.34	PTR	a23-38-84-34.deploy.static.akamaitechnologies.com
23.38.84.34	A	gear.playstation.com
23.38.84.34	A	secure.cdn.us.playstation.com
23.38.84.178	A+PTR	a23-38-84-178.deploy.static.akamaitechnologies.com
23.38.85.36	A+PTR	a23-38-85-36.deploy.static.akamaitechnologies.com
23.38.85.105	PTR	a23-38-85-105.deploy.static.akamaitechnologies.com
23.38.85.163	A+PTR	a23-38-85-163.deploy.static.akamaitechnologies.com
23.38.85.172	A+PTR	a23-38-85-172.deploy.static.akamaitechnologies.com
23.38.86.12	PTR	a23-38-86-12.deploy.static.akamaitechnologies.com
23.38.86.12	A	e5923.g.akamaiedge.net
23.38.86.50	A+PTR	a23-38-86-50.deploy.static.akamaitechnologies.com
23.38.86.232	A+PTR	a23-38-86-232.deploy.static.akamaitechnologies.com
23.38.86.232	A	e5324.g.akamaiedge.net
23.38.86.232	A	https.aerohive.edgekey.net
23.38.87.47	A+PTR	a23-38-87-47.deploy.akamaitechnologies.com
23.38.87.52	A+PTR	a23-38-87-52.deploy.akamaitechnologies.com
23.38.87.95	A+PTR	a23-38-87-95.deploy.static.akamaitechnologies.com
23.38.87.106	A+PTR	a23-38-87-106.deploy.static.akamaitechnologies.com
23.38.87.230	A+PTR	a23-38-87-230.deploy.static.akamaitechnologies.com
23.38.87.254	PTR	a23-38-87-254.deploy.static.akamaitechnologies.com