Robtex

Up: 23.2.12.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 23.2.12.0/25
Down right: 23.2.12.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
23.2.12.21	PTR	a23-2-12-21.deploy.static.akamaitechnologies.com
23.2.12.22	PTR	a23-2-12-22.deploy.static.akamaitechnologies.com
23.2.12.24	PTR	a23-2-12-24.deploy.static.akamaitechnologies.com
23.2.12.29	PTR	a23-2-12-29.deploy.static.akamaitechnologies.com
23.2.12.35	PTR	a23-2-12-35.deploy.static.akamaitechnologies.com
23.2.12.39	PTR	a23-2-12-39.deploy.static.akamaitechnologies.com
23.2.12.39	A	douglas.edgekey.net
23.2.12.39	A	www.douglas.it
23.2.12.47	PTR	a23-2-12-47.deploy.static.akamaitechnologies.com
23.2.12.75	PTR	a23-2-12-75.deploy.static.akamaitechnologies.com
23.2.12.77	A+PTR	a23-2-12-77.deploy.static.akamaitechnologies.com
23.2.12.78	PTR	a23-2-12-78.deploy.static.akamaitechnologies.com
23.2.12.79	PTR	a23-2-12-79.deploy.static.akamaitechnologies.com
23.2.12.85	PTR	a23-2-12-85.deploy.static.akamaitechnologies.com
23.2.12.111	PTR	a23-2-12-111.deploy.static.akamaitechnologies.com
23.2.12.111	A	cdnaimg-ra.media.net
23.2.12.111	A	abd.media.net
23.2.12.114	PTR	a23-2-12-114.deploy.static.akamaitechnologies.com
23.2.12.114	A	gtm-config.akamai.com
23.2.12.140	PTR	a23-2-12-140.deploy.static.akamaitechnologies.com
23.2.12.152	PTR	a23-2-12-152.deploy.static.akamaitechnologies.com
23.2.12.169	PTR	a23-2-12-169.deploy.static.akamaitechnologies.com
23.2.12.178	PTR	a23-2-12-178.deploy.static.akamaitechnologies.com
23.2.12.178	A	w3.siemens.com
23.2.12.191	PTR	a23-2-12-191.deploy.static.akamaitechnologies.com
23.2.12.193	PTR	a23-2-12-193.deploy.static.akamaitechnologies.com
23.2.12.236	PTR	a23-2-12-236.deploy.static.akamaitechnologies.com
23.2.12.236	A	partner.support.services.microsoft.com