Robtex

Up: 23.52.98.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 23.52.99.0/25
Down right: 23.52.99.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
23.52.99.1	PTR	a23-52-99-1.deploy.static.akamaitechnologies.com
23.52.99.9	PTR	a23-52-99-9.deploy.static.akamaitechnologies.com
23.52.99.9	A	cid-0ba1cbfa33098092.spaces.live.com
23.52.99.9	A	lovin-search.spaces.live.com
23.52.99.49	PTR	a23-52-99-49.deploy.static.akamaitechnologies.com
23.52.99.49	A	san6.humana.com.edgekey.net
23.52.99.50	A	*.zealoptics.com
23.52.99.74	PTR	a23-52-99-74.deploy.static.akamaitechnologies.com
23.52.99.77	PTR	a23-52-99-77.deploy.static.akamaitechnologies.com
23.52.99.100	PTR	a23-52-99-100.deploy.static.akamaitechnologies.com
23.52.99.107	PTR	a23-52-99-107.deploy.static.akamaitechnologies.com
23.52.99.107	A	secure.mysimplexes.com
23.52.99.119	A	m.delta.com
23.52.99.123	PTR	a23-52-99-123.deploy.static.akamaitechnologies.com
23.52.99.123	A	e3427.ksd.akamaiedge.net
23.52.99.128	PTR	a23-52-99-128.deploy.static.akamaitechnologies.com
23.52.99.135	PTR	a23-52-99-135.deploy.static.akamaitechnologies.com
23.52.99.136	PTR	a23-52-99-136.deploy.static.akamaitechnologies.com
23.52.99.156	A+PTR	a23-52-99-156.deploy.static.akamaitechnologies.com
23.52.99.170	PTR	a23-52-99-170.deploy.static.akamaitechnologies.com
23.52.99.170	A	endpoint.efast.dol.gov
23.52.99.179	PTR	a23-52-99-179.deploy.static.akamaitechnologies.com
23.52.99.179	A	san.gamefly.com.edgekey.net
23.52.99.191	A+PTR	a23-52-99-191.deploy.static.akamaitechnologies.com
23.52.99.201	PTR	a23-52-99-201.deploy.static.akamaitechnologies.com
23.52.99.208	A+PTR	a23-52-99-208.deploy.static.akamaitechnologies.com
23.52.99.242	PTR	a23-52-99-242.deploy.static.akamaitechnologies.com
23.52.99.247	PTR	a23-52-99-247.deploy.static.akamaitechnologies.com
23.52.99.249	PTR	a23-52-99-249.deploy.static.akamaitechnologies.com