Robtex

Up: 27.50.32.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 27.50.32.0/22
Down right: 27.50.36.0/22

IP	Type	Hostname
27.50.32.2	A	blm1388.com
27.50.33.9	PTR	lb2.core1.sin1.he.net
27.50.33.58	PTR	dolphin-international-inc.gigabitethernet2-9.core1.tyo1.he.net
27.50.33.69	PTR	gige-g2-11.core1.tyo1.he.net
27.50.33.76	PTR	lb5.core1.hkg1.he.net
27.50.33.94	PTR	viewqwest-pte-ltd.gigabitethernet2-2.core1.sin1.he.net
27.50.33.105	PTR	v103.core1.hkg1.he.net
27.50.33.106	PTR	forewin-telecom-group-ltd.gigabitethernet3-20.core1.hkg1.he.net
27.50.33.109	PTR	gige-g2-6.core1.sin1.he.net
27.50.33.109	A	v603.core1.sin1.he.net
27.50.33.114	PTR	unitas-global.gigabitethernet2-7.core1.sin1.he.net
27.50.33.122	PTR	wificity-inc.gigabitethernet4-4.core1.hkg1.he.net
27.50.33.129	PTR	gige-g2-17.core1.tyo1.he.net
27.50.36.54	PTR	eyeota-pte-ltd.gigabitethernet2-7.core1.sin1.he.net
27.50.36.153	PTR	e0-23.core1.hkg2.he.net
27.50.36.153	A	10ge1-9.core1.sin1.he.net
27.50.36.190	PTR	pt-aplikanusa-lintasarta.10gigabitethernet1-1-30.switch2.sin1.he.net
27.50.37.1	PTR	ge4-20.core1.hkg1.he.net
27.50.37.9	PTR	ge2-19.core1.tyo1.he.net
27.50.37.10	A+PTR	ns4-tyo1.he.net
27.50.37.14	A+PTR	ns5-tyo1.he.net