Robtex

Up: 216.100.0.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 216.100.32.0/20
Down right: 216.100.48.0/20

IP	Type	Hostname
216.100.33.2	A	adsl-216-100-33-2.dsl.snfc21.pacbell.net
216.100.33.34	A+PTR	ns.palisad.com
216.100.33.35	A+PTR	mail.palisad.com
216.100.33.35	A	palisad.com
216.100.33.36	A	mail.theberkeleys.net
216.100.36.150	A	kitcropper.com
216.100.41.7	A	adsl-216-100-41-7.dsl.snfc21.sbcglobal.net
216.100.41.16	A	adsl-216-100-41-16.dsl.snfc21.sbcglobal.net
216.100.41.158	A	adsl-216-100-41-158.dsl.snfc21.sbcglobal.net
216.100.41.188	A	adsl-216-100-41-188.dsl.snfc21.sbcglobal.net
216.100.44.5	A	adsl-216-100-44-5.dsl.snfc21.pacbell.net
216.100.44.14	A	adsl-216-100-44-14.dsl.snfc21.pacbell.net
216.100.44.39	A	adsl-216-100-44-39.dsl.snfc21.pacbell.net
216.100.44.123	A	adsl-216-100-44-123.dsl.snfc21.pacbell.net
216.100.44.126	A	adsl-216-100-44-126.dsl.snfc21.pacbell.net
216.100.44.127	A	adsl-216-100-44-127.dsl.snfc21.pacbell.net
216.100.44.181	A	adsl-216-100-44-181.dsl.snfc21.pacbell.net
216.100.44.231	A	adsl-216-100-44-231.dsl.snfc21.pacbell.net
216.100.44.243	A	adsl-216-100-44-243.dsl.snfc21.pacbell.net
216.100.45.54	A	releaf.com
216.100.50.4	A	mail.aspintronics.com
216.100.50.6	A	mail.magictech.com
216.100.50.10	A	magictech.com
216.100.50.35	PTR	216-100-50-35.velocityhsi.com
216.100.51.130	A	mail1.nativehealth.org
216.100.51.130	A	mail2.nativehealth.org
216.100.52.6	A	mailgateway2.guittard.com
216.100.52.25	A	bermuda2.guittard.com
216.100.55.1	A	router.hsba.com
216.100.55.2	PTR	hsba.com
216.100.55.10	A+PTR	jbt.com
216.100.55.20	A	mail.preferredalliance.com
216.100.55.20	A	mail.hsba.com
216.100.55.34	A+PTR	hsbainc.com
216.100.55.35	A+PTR	mail.hsbainc.com
216.100.55.36	A+PTR	hsba.com
216.100.55.37	A	preferredalliance.com
216.100.56.227	PTR	adsl-216-100-56-227.hrsfo.com
216.100.57.69	A	fordyce.net10.net
216.100.57.70	A	ns.acommercesolution.com
216.100.57.163	PTR	3dweb.com
216.100.59.68	PTR	samtechonline.com
216.100.59.162	PTR	comet.com
216.100.59.233	A	darksunrising.com
216.100.59.233	A	aplysia.org
216.100.59.233	A	mail.darksunrising.com
216.100.62.76	A	us-hellfire.viruswall.com
216.100.63.222	A	giantbeermugs.com