Robtex

Up: 204.140.0.0/16
Can't show all results, try to descend to a more specific CIDR
Down left: 204.140.128.0/18
Down right: 204.140.192.0/18
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
204.140.128.2	A	guest-wireless-1478-gw-13.usc.edu
204.140.128.54	A	guest-wireless-204-140-128-054.usc.edu
204.140.136.254	A	blackfiretechnology.com
204.140.166.3	A+PTR	machete.cscmail.org
204.140.166.4	A	rock.cscmail.org
204.140.166.4	A	smtp.cscmail.org
204.140.166.5	A+PTR	h2o.cscmail.org
204.140.171.98	PTR	offutt-98.aero.org
204.140.171.108	PTR	aaj186.aero.org
204.140.171.188	PTR	cq448.aero.org
204.140.193.3	A+PTR	guest-wireless-eup-nat-204-140-193-003.usc.edu
204.140.193.46	A	guest-wireless-eup-nat-204-140-193-046.usc.edu
204.140.193.53	A	guest-wireless-eup-nat-204-140-193-053.usc.edu
204.140.193.58	A	guest-wireless-eup-nat-204-140-193-058.usc.edu
204.140.193.140	A	guest-wireless-eup-nat-204-140-193-140.usc.edu
204.140.193.164	A	guest-wireless-eup-nat-204-140-193-164.usc.edu
204.140.193.167	A	guest-wireless-eup-nat-204-140-193-167.usc.edu
204.140.193.173	A	guest-wireless-eup-nat-204-140-193-173.usc.edu
204.140.198.5	A	guest-wireless-eup-nat-204-140-198-005.usc.edu
204.140.198.12	A	guest-wireless-eup-nat-204-140-198-012.usc.edu
204.140.198.14	A	guest-wireless-eup-nat-204-140-198-014.usc.edu
204.140.198.22	A	guest-wireless-eup-nat-204-140-198-022.usc.edu
204.140.198.129	A+PTR	guest-wireless-eup-nat-204-140-198-129.usc.edu
204.140.198.132	A	guest-wireless-eup-nat-204-140-198-132.usc.edu
204.140.198.138	A	guest-wireless-eup-nat-204-140-198-138.usc.edu
204.140.198.141	A	guest-wireless-eup-nat-204-140-198-141.usc.edu
204.140.199.91	A	guest-wireless-eup-nat-204-140-199-091.usc.edu
204.140.199.131	A+PTR	guest-wireless-eup-nat-204-140-199-131.usc.edu
204.140.208.8	PTR	socalclimb.com
204.140.208.8	A	2rm.net
204.140.208.8	A	pop3.2rm.net
204.140.208.10	PTR	hawking.2rm.net
204.140.208.200	PTR	www.neurodata.com
204.140.208.200	A	neurodata.com
204.140.216.1	A	mailmiti-miti.myz.info
204.140.216.1	A	mail-uschina.ns01.us
204.140.216.1	A	owa-esteri.toh.info
204.140.220.1	A	hakko.com
204.140.220.2	A	mail.risingstars.cc
204.140.221.4	PTR	ufo.deepspace.com
204.140.221.4	A	deepspace.com
204.140.221.43	PTR	biteme.org
204.140.231.77	A	ejmdevelopmentco.com
204.140.239.2	PTR	cruznet2.cruznet.net
204.140.240.2	PTR	mstlnd.aero.org
204.140.243.2	A	ismail.kcrw.org
204.140.243.2	A	mail.kcrw.net
204.140.243.2	A	mail.kcrw.org
204.140.244.231	A	bachpartytour.com
204.140.244.231	A	spiffytools.com
204.140.244.231	A	itchy.netcouch.com
204.140.246.1	A+PTR	lyell.nhm.org
204.140.246.1	A	lyell.lam.mus.ca.us
204.140.246.2	A+PTR	hermes.nhm.org
204.140.246.3	PTR	autodiscover.nhm.org
204.140.246.3	A+PTR	email.nhm.org
204.140.246.8	PTR	dns1.nhm.org
204.140.246.254	A+PTR	nhm-gw.nhm.org
204.140.250.1	A	prue-1.ln.net
204.140.250.2	A	prue-2.ln.net
204.140.250.3	A	prue-3.ln.net
204.140.250.4	A+PTR	prue-4.ln.net
204.140.251.1	A+PTR	yfp-1.ln.net
204.140.251.2	A+PTR	yfp-2.ln.net
204.140.251.3	A+PTR	yfp-3.ln.net
204.140.251.4	A	yfp-4.ln.net
204.140.251.254	A	yfp-254.ln.net