Robtex

Up: 117.20.64.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 117.20.64.0/23
Down right: 117.20.66.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
117.20.64.0	PTR	117-20-64-0.cust.aussiebb.net
117.20.64.157	A	d4jwalsh.net
117.20.64.189	PTR	117-20-64-189.bne.nbn.aussiebb.net
117.20.64.189	A	thecrawfords.email
117.20.64.189	A	mail.thecrawfords.email
117.20.64.196	A	darbness.com
117.20.64.204	A	bladesgamingservers.com
117.20.64.246	A	n-vision.com.au
117.20.64.253	A	previewthis.net
117.20.65.0	PTR	117-20-65-0.cust.aussiebb.net
117.20.65.44	A	smellywolf.com
117.20.65.60	A	odeinstallations.com
117.20.65.114	A	apptuary.com
117.20.65.135	A	nqarental.com
117.20.65.207	PTR	117-20-65-207.cust.aussiebb.net
117.20.65.207	A	remote.thecommsteam.com.au
117.20.65.254	A	eddienet.com
117.20.66.0	PTR	117-20-66-0.cust.aussiebb.net
117.20.66.43	PTR	117-20-66-43.cust.aussiebb.net
117.20.66.43	A	kalion.org
117.20.66.250	A	fr.id.au
117.20.66.250	A	server.home.unixhost.net
117.20.67.0	PTR	117-20-67-0.cust.aussiebb.net
117.20.67.93	PTR	117-20-67-93.cust.aussiebb.net
117.20.67.134	A	scatagutz.com
117.20.67.191	A	tenxvrt.com
117.20.67.204	A	ba.id.au
117.20.67.254	A	behrenspeed3d.com
117.20.67.254	A	davesdronedesigns.com
117.20.67.254	A	behrenspeed.com
117.20.67.255	PTR	117-20-67-255.cust.aussiebb.net