Robtex

Up: 152.158.32.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 152.158.32.0/22
Down right: 152.158.36.0/22

IP	Type	Hostname
152.158.35.4	PTR	brus1ir2-31.br.be.ip.att.net
152.158.35.12	PTR	brus1ir2-24.br.be.ip.att.net
152.158.36.1	A+PTR	uith1br1.uit.nl.prserv.net
152.158.36.33	A+PTR	nlamtr1101er1-4-2-10.am.nl.ip.att.net
152.158.36.34	A+PTR	dnms.nl.prserv.net
152.158.36.34	A+PTR	nlamtr1102er1-4-2-10.am.nl.ip.att.net
152.158.36.48	PTR	ns.nl.prserv.net
152.158.37.134	A+PTR	rig16.nl.prserv.net
152.158.38.76	A+PTR	zoet1br1-ce-2.ztm.nl.prserv.net