Robtex

Up: 216.163.32.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 216.163.32.0/23
Down right: 216.163.34.0/23

IP	Type	Hostname
216.163.32.48	A	qtm4kids.com
216.163.32.205	A+PTR	exelnet.net
216.163.32.205	A	alintserv.com
216.163.33.0	PTR	lost-start.glakesmetalstamping.com
216.163.33.16	A+PTR	loststart.shepherdcasters.com
216.163.33.31	A	lostend.shepherdcasters.com
216.163.33.33	PTR	open
216.163.33.42	PTR	open
216.163.33.47	PTR	open
216.163.33.53	PTR	open
216.163.33.56	PTR	open
216.163.33.69	PTR	supermicro1.dataswitch.com
216.163.33.69	A	ns1.dataswitch.com
216.163.33.84	PTR	fosbulletins.com
216.163.33.86	PTR	airwarn.com
216.163.33.96	PTR	lost-start.danesys.com
216.163.33.106	A+PTR	emfilter.afmonline.org
216.163.33.106	A	mail.afmonline.org
216.163.33.114	PTR	ip2.vai-t1.qtm.net
216.163.33.114	A	mail.vaiautomation.com
216.163.33.141	PTR	ip5-mphi.qtm.net
216.163.33.141	A	samepagereports.com
216.163.33.142	A+PTR	mail.michiganpizzahut.com
216.163.33.142	A	mail.samepagereports.com
216.163.33.196	A	mail.glangconstruction.com
216.163.33.197	A+PTR	ftp.michiganpizzahut.com
216.163.33.197	A	glangconstruction.com
216.163.33.197	A	michiganpizzahut.com
216.163.33.218	A+PTR	mail.hospiceathomecares.org
216.163.33.231	PTR	lost-end.lakesideurology.net
216.163.33.254	PTR	mail.wirx.com
216.163.34.107	A+PTR	sdsl-216-163-34-107.dividezero.net
216.163.34.111	PTR	lost-end.alienz.net
216.163.34.119	PTR	lost-end.lakesideurology.net
216.163.34.166	A	mail.cornerstonechamber.com
216.163.34.186	PTR	mail.ccmcf.org
216.163.34.191	PTR	lost-end.qtm.net
216.163.34.194	A	christofferjones.com
216.163.34.224	PTR	taken
216.163.34.225	PTR	taken
216.163.34.226	PTR	taken
216.163.34.227	PTR	taken
216.163.34.236	PTR	lost-start
216.163.34.243	PTR	lost-end.wozniak.qtm.net
216.163.34.243	A	lost-end.qtm.net
216.163.34.255	PTR	lost-end.qtm.net
216.163.35.69	PTR	dhcp69.bchnmimn.qtm.net
216.163.35.154	PTR	dhcp154.bchnmimn.qtm.net