Robtex

Up: 122.252.128.0/20
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Down left: 122.252.128.0/22
Down right: 122.252.132.0/22

IP	Type	Hostname
122.252.133.0	PTR	a122-252.133-0.deploy.akamaitechnologies.com
122.252.133.128	PTR	a122-252.133-128.deploy.akamaitechnologies.com
122.252.135.3	PTR	a122-252.135-3.deploy.akamaitechnologies.com
122.252.135.251	PTR	a122-252.135-251.deploy.akamaitechnologies.com