Robtex

Up: 204.28.96.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 204.28.112.0/21
Down right: 204.28.120.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
204.28.112.254	A	dhcp.2116allston.web-pass.com
204.28.113.2	A	dhcp.2110haste.web-pass.com
204.28.113.199	PTR	x.113.28.204.web-pass.com
204.28.113.199	A	proton.pathname.com
204.28.113.199	A	dearlive.com
204.28.114.2	A	dhcp.2004university.web-pass.com
204.28.114.14	PTR	14.114.28.204.in-addr.arpa
204.28.114.31	PTR	x.114.28.204.web-pass.com
204.28.114.130	A	dhcp.501crescent.web-pass.com
204.28.115.50	PTR	204-28-115-50.cab.webpass.net
204.28.115.50	A	50.115.28.204.in-addr.arpa
204.28.115.61	PTR	x.115.28.204.web-pass.com
204.28.115.90	PTR	x.115.28.204.web-pass.com
204.28.115.90	A	achdepartment19.ml
204.28.115.90	A	mail.achdepartment19.ml
204.28.115.126	A+PTR	126.115.28.204.in-addr.arpa
204.28.115.132	PTR	x.115.28.204.web-pass.com
204.28.115.158	A	dhcp.1500park.web-pass.com
204.28.115.162	PTR	x.115.28.204.web-pass.com
204.28.115.170	PTR	x.115.28.204.web-pass.com
204.28.115.180	A	chwaclient.com
204.28.115.181	PTR	x.115.28.204.web-pass.com
204.28.115.186	PTR	x.115.28.204.web-pass.com
204.28.115.254	A	dhcp.5800third.web-pass.com
204.28.115.255	PTR	x.115.28.204.web-pass.com
204.28.116.2	A+PTR	dhcp.1168folsom.webpass.net
204.28.116.34	A	bondon.com
204.28.116.34	A	ns1.bondon.com
204.28.116.63	A+PTR	63.116.28.204.in-addr.arpa
204.28.116.63	A	abcpingpong.com
204.28.116.98	PTR	x.116.28.204.web-pass.com
204.28.116.98	A	sfbp.org
204.28.116.114	PTR	204-28-116-114.cab.webpass.net
204.28.116.114	A	appleairport.267eighth.web-pass.com
204.28.116.135	A	dhcp.1370university.web-pass.com
204.28.117.2	PTR	x.117.28.204.web-pass.com
204.28.117.2	A	dhcp.2002addison.web-pass.com
204.28.117.131	A	dhcp.5855horton.web-pass.com
204.28.117.226	A	dhcp.1250missouri.web-pass.com
204.28.117.251	PTR	sf.ltmd.net
204.28.118.2	PTR	2.118.28.204.in-addr.arpa
204.28.118.2	A	dhcp.333harrison.web-pass.com
204.28.118.130	A	dhcp.1lakeside.web-pass.com
204.28.118.136	PTR	x.118.28.204.web-pass.com
204.28.118.136	A	wikifightgame.com
204.28.118.136	A	testception.com
204.28.118.145	PTR	x.118.28.204.web-pass.com
204.28.118.163	PTR	x.118.28.204.web-pass.com
204.28.118.178	PTR	x.118.28.204.web-pass.com
204.28.118.178	A	vestlife.se
204.28.118.194	A	dhcp.6400christie.web-pass.com
204.28.119.2	A	dhcp.2119university.web-pass.com
204.28.119.158	PTR	x.119.28.204.web-pass.com
204.28.119.162	A	dhcp.1082pennsylvania.web-pass.com
204.28.119.169	PTR	x.119.28.204.web-pass.com
204.28.119.180	A	r0llin.com
204.28.119.226	A	dhcp.640davis.web-pass.com
204.28.119.242	A	dhcp.125mason.web-pass.com
204.28.120.1	PTR	x.120.28.204.web-pass.com
204.28.120.180	PTR	x.120.28.204.web-pass.com
204.28.120.226	A	dhcp.1600fifteenth.web-pass.com
204.28.121.218	A	remote.bamo.com
204.28.121.220	A	vision.bamo.com
204.28.121.249	A	switch5.168bluxome.web-pass.com
204.28.121.250	A	switch6.168bluxome.web-pass.com
204.28.122.22	PTR	x.122.28.204.web-pass.com
204.28.122.22	A	malinovich.name
204.28.122.50	A	*.bigfootjobs.com
204.28.122.50	A	bigfootjobs.com
204.28.122.66	A	dhcp.25sierra.web-pass.com
204.28.122.100	PTR	x.122.28.204.web-pass.com
204.28.122.100	A	drmattyg.com
204.28.122.148	A+PTR	mail.gastarchitects.com
204.28.122.148	A	mail.dsga.com
204.28.122.148	A	mail.gastarch.com
204.28.123.25	PTR	x.123.28.204.web-pass.com
204.28.123.126	A	exchange.urbansolutionssf.org
204.28.123.131	A	dhcp.401grove.web-pass.com
204.28.123.226	PTR	x.123.28.204.web-pass.com
204.28.124.45	A	kdoba.com
204.28.124.48	PTR	x.124.28.204.web-pass.com
204.28.124.73	PTR	204-28-124-73.cab.webpass.net
204.28.124.73	A	kdoba.com
204.28.124.82	A	*.alexandria-dentistry.com
204.28.124.82	A	www.ipiqi.com
204.28.124.82	A	*.ipiqi.com
204.28.124.124	A	dhcp.140southvanness.web-pass.com
204.28.124.131	A	dhcp.1hawthorne.web-pass.com
204.28.124.132	A+PTR	mail.onehawthorne.org
204.28.124.251	A+PTR	mail.onehawthorne.com
204.28.125.2	A	dhcp.311second.web-pass.com
204.28.125.18	A	chronos-tachyon.net
204.28.125.50	A	endlessm-sf.com
204.28.125.107	A	ctigdx.com
204.28.125.133	A	dhcp.1045mission.web-pass.com
204.28.125.145	PTR	x.125.28.204.web-pass.com
204.28.125.152	PTR	x.125.28.204.web-pass.com
204.28.125.152	A	michael-levesque.com
204.28.125.163	PTR	x.125.28.204.web-pass.com
204.28.125.163	A	vertigobox.org
204.28.125.178	A+PTR	178.125.28.204.in-addr.arpa
204.28.125.178	A	mx.axscribes.com
204.28.125.201	A	node.1lakeside.web-pass.com
204.28.125.202	A+PTR	202.125.28.204.in-addr.arpa
204.28.125.202	A	node.222broadway.web-pass.com
204.28.126.18	PTR	x.126.28.204.web-pass.com
204.28.126.131	PTR	x.126.28.204.web-pass.com
204.28.126.131	A	liketastic.com
204.28.126.131	A	stormbolt.com
204.28.127.18	A	node.625market.web-pass.com
204.28.127.19	A	node.580market.web-pass.com
204.28.127.20	A+PTR	20.127.28.204.in-addr.arpa
204.28.127.114	PTR	x.127.28.204.web-pass.com
204.28.127.131	A	dhcp.465tenth.web-pass.com