Robtex

Up: 66.226.0.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 66.226.0.0/23
Down right: 66.226.2.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
66.226.0.25	PTR	webservers.blink.com
66.226.0.36	PTR	outbound16.set-for-life.us
66.226.0.46	PTR	mx1.blink.com
66.226.0.79	A	wns2.lookwhois.com
66.226.0.80	PTR	s13.lookwhois.com
66.226.0.81	PTR	s13.lookwhois.com
66.226.0.83	PTR	s7.lookwhois.com
66.226.0.85	PTR	s7.lookwhois.com
66.226.0.85	A	www.juliej.com
66.226.0.85	A	juliej.com
66.226.0.98	PTR	s1.lookwhois.com
66.226.0.102	A+PTR	s13.lookwhois.com
66.226.0.102	A	mail.exclude.net
66.226.0.109	PTR	smartermail5.lookwhois.com
66.226.0.109	A	ns.pack860.org
66.226.0.115	A+PTR	s12.lookwhois.com
66.226.0.117	A+PTR	smartermail5.lookwhois.com
66.226.0.117	A	a-66-226-0-117.wpopradio.com
66.226.0.117	A	kickprogram.com
66.226.0.120	PTR	s11.lookwhois.com
66.226.0.120	A	s5.lookwhois.com
66.226.0.120	A	s4.lookwhois.com
66.226.0.121	A+PTR	s7.lookwhois.com
66.226.0.122	PTR	s7.lookwhois.com
66.226.0.139	A	apbdirectors.com
66.226.0.143	A	www.myopenbank.com
66.226.0.143	A	myopenbank.com
66.226.0.163	PTR	leeclan.com
66.226.0.163	A	mail.exilicom.net
66.226.0.164	A	mackenzieyu.com
66.226.0.164	A	www.exilicom.net
66.226.0.164	A	leeclan.com
66.226.0.170	A	n-central.nstnet.com
66.226.0.171	A+PTR	zixvpm01.nstnet.com
66.226.0.172	A+PTR	zixvpm02.nstnet.com
66.226.0.221	A	smtp.exilicom.net
66.226.1.19	A	chis.ucla.edu
66.226.1.67	PTR	componex.com
66.226.1.150	A	friendsandsoulmates.com
66.226.1.155	A	dvarchive.com
66.226.1.155	A	exch.maapsllc.com
66.226.2.149	A	mail.poolgamer.com
66.226.3.101	A	guitarschool.us