Robtex

Up: 123.136.72.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 123.136.72.0/23
Down right: 123.136.74.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
123.136.73.9	A	inet-8.73.bipbc.net
123.136.73.9	A	smtp.bipbc.net
123.136.73.9	A	mymobip.net
123.136.73.17	A	ns2.bipbc.net
123.136.73.42	A	mrmstudios.tk
123.136.74.218	A	ns2.bipbc.net
123.136.74.218	A	cabnet-bip4u.com
123.136.74.218	A	ahead.com.ph
123.136.75.18	A	abs-cbnvoip.com