Robtex

Up: 104.92.70.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 104.92.71.0/25
Down right: 104.92.71.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
104.92.71.16	PTR	a104-92-71-16.deploy.static.akamaitechnologies.com
104.92.71.16	A	worksmart.att.com.edgekey.net
104.92.71.16	A	worksmart.att.com
104.92.71.111	A+PTR	a104-92-71-111.deploy.static.akamaitechnologies.com