Robtex

Up: 172.227.144.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 172.227.144.0/23
Down right: 172.227.146.0/23

IP	Type	Hostname
172.227.144.40	PTR	a172-227-144-40.deploy.static.akamaitechnologies.com
172.227.144.207	A+PTR	a172-227-144-207.deploy.static.akamaitechnologies.com
172.227.147.14	PTR	a172-227-147-14.deploy.static.akamaitechnologies.com
172.227.147.165	PTR	a172-227-147-165.deploy.static.akamaitechnologies.com
172.227.147.218	A+PTR	a172-227-147-218.deploy.static.akamaitechnologies.com
172.227.147.225	A+PTR	a172-227-147-225.deploy.static.akamaitechnologies.com