Robtex

Up: 139.193.160.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 139.193.176.0/21
Down right: 139.193.184.0/21

IP	Type	Hostname
139.193.177.48	PTR	fm-dyn-139-193-177-48.fast.net.id
139.193.177.165	PTR	fm-dyn-139-193-177-165.fast.net.id
139.193.177.211	PTR	fm-dyn-139-193-177-211.fast.net.id
139.193.178.226	PTR	fm-dyn-139-193-178-226.fast.net.id
139.193.185.85	PTR	fm-dyn-139-193-185-85.fast.net.id
139.193.186.26	PTR	fm-dyn-139-193-186-26.fast.net.id
139.193.187.115	PTR	fm-dyn-139-193-187-115.fast.net.id
139.193.187.194	PTR	fm-dyn-139-193-187-194.fast.net.id