Robtex

Up: 118.137.8.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 118.137.12.0/23
Down right: 118.137.14.0/23

IP	Type	Hostname
118.137.12.0	PTR	fm-dyn-118-137-12-0.fast.net.id
118.137.12.5	PTR	fm-dyn-118-137-12-5.fast.net.id
118.137.12.108	PTR	fm-dyn-118-137-12-108.fast.net.id
118.137.12.126	PTR	fm-dyn-118-137-12-126.fast.net.id
118.137.12.126	A	fm-ip-118.137.12.126.fast.net.id
118.137.12.144	PTR	fm-dyn-118-137-12-144.fast.net.id
118.137.12.161	PTR	fm-dyn-118-137-12-161.fast.net.id
118.137.12.161	A	fm-ip-118.137.12.161.fast.net.id
118.137.12.165	PTR	fm-dyn-118-137-12-165.fast.net.id
118.137.12.196	PTR	fm-dyn-118-137-12-196.fast.net.id
118.137.12.255	PTR	fm-dyn-118-137-12-255.fast.net.id
118.137.13.0	PTR	fm-dyn-118-137-13-0.fast.net.id
118.137.13.59	PTR	fm-dyn-118-137-13-59.fast.net.id
118.137.13.67	A	fm-ip-118.137.13.67.fast.net.id
118.137.13.135	PTR	fm-dyn-118-137-13-135.fast.net.id
118.137.13.152	PTR	fm-dyn-118-137-13-152.fast.net.id
118.137.13.162	PTR	fm-dyn-118-137-13-162.fast.net.id
118.137.13.171	PTR	fm-dyn-118-137-13-171.fast.net.id
118.137.13.174	PTR	fm-dyn-118-137-13-174.fast.net.id
118.137.13.194	PTR	fm-dyn-118-137-13-194.fast.net.id
118.137.13.254	A	fm-ip-118.137.13.254.fast.net.id
118.137.14.2	PTR	fm-dyn-118-137-14-2.fast.net.id
118.137.14.255	PTR	fm-dyn-118-137-14-255.fast.net.id
118.137.15.0	PTR	fm-dyn-118-137-15-0.fast.net.id
118.137.15.6	PTR	fm-dyn-118-137-15-6.fast.net.id
118.137.15.50	PTR	fm-dyn-118-137-15-50.fast.net.id
118.137.15.68	PTR	fm-dyn-118-137-15-68.fast.net.id
118.137.15.85	PTR	fm-dyn-118-137-15-85.fast.net.id
118.137.15.255	PTR	fm-dyn-118-137-15-255.fast.net.id