Robtex

Up: 198.203.0.0/16
Can't show all results, try to descend to a more specific CIDR
Down left: 198.203.0.0/18
Down right: 198.203.64.0/18
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
198.203.8.10	PTR	www.uscentral.org
198.203.8.43	A	epd.secorp.org
198.203.10.17	PTR	bmail.uscentral.org
198.203.17.53	A+PTR	ns2.saws.org
198.203.18.10	A+PTR	out.saws.org
198.203.21.20	A+PTR	ftp.saws.org
198.203.21.25	A+PTR	mailout.saws.org
198.203.21.26	A+PTR	mail.saws.org
198.203.21.45	A	exedge.saws.org
198.203.21.130	A	webdav.saws.org
198.203.21.178	A	www.bexarmet.org
198.203.21.178	A	bexarmet.org
198.203.21.179	PTR	2
198.203.21.180	A+PTR	secure-prod.saws.org
198.203.26.28	A	mail.crystalgeyser.net
198.203.26.28	A	mail.crystalgeyser.com
198.203.26.28	A	cgw-ironport.crystalgeyser.net
198.203.27.18	A	cgwater.com
198.203.28.0	PTR	unknown-client.static.huge-dns.com
198.203.28.42	A	america.all.vpn.airdns.org
198.203.28.42	A	pollux.airservers.org
198.203.28.43	A	jreenets2o.airdns.org
198.203.28.146	A	vpn-gw-prod-005.jax0-hug.ff.avast.com
198.203.28.246	A	jackbaur57.linkpc.net
198.203.29.2	PTR	server.la.privax.com
198.203.30.2	PTR	unknown-client.static.huge-dns.com
198.203.31.0	PTR	unknown-client.static.huge-dns.com
198.203.31.29	A	magnumbiz2.no-ip.biz
198.203.31.128	PTR	unknown-client.static.huge-dns.com
198.203.31.131	PTR	unknown-client.static.huge-dns.com
198.203.32.54	A	mailrelay.darbydental.com
198.203.32.54	A	mailrelay.darbypromotions.com
198.203.32.54	A	mailrelay.darbydentalsupply.com
198.203.47.129	PTR	47129.darbygroup.com
198.203.47.129	A	dns1.darbygroup.com
198.203.47.129	A	dns1.darbygrp.com
198.203.47.130	PTR	47130.darbygroup.com
198.203.47.130	A	dns2.darbygroup.com
198.203.59.119	A	darbygrp.com
198.203.59.120	A	darbygrp.com
198.203.59.189	A	online.darbydental.com
198.203.59.195	A	islanddental.com
198.203.59.195	A	www.islanddental.com
198.203.59.197	A	savewithdarby.com
198.203.60.10	A	dcsvpn.dcs.com
198.203.60.13	A	exchange.dcs.com
198.203.60.52	A	ftp.dcs.com
198.203.60.53	A	beta.dcs.com
198.203.60.216	A+PTR	dcsdiplomatweb6.dcs.com
198.203.60.218	A+PTR	dcsdiplomatweb8.dcs.com
198.203.63.231	A	memmailrelay.darbygroup.com
198.203.63.231	A	memmailrelay.darby.com
198.203.63.231	A	memmailrelay.darbypromotions.com
198.203.81.2	A+PTR	vpn-2.cps-k12.org
198.203.81.2	A+PTR	vpn-2.cpsboe.k12.oh.us
198.203.81.10	A+PTR	email.cps-k12.org
198.203.81.10	A+PTR	email.cpsboe.k12.oh.us
198.203.81.11	PTR	smtp.cps-k12.org
198.203.81.11	PTR	smtp.cpsboe.k12.oh.us
198.203.81.248	A	sftp.cpsboe.k12.oh.us
198.203.101.155	A	benetechmachinery.com
198.203.127.1	PTR	ns1.cps-k12.com
198.203.127.1	PTR	ns1.cps-k12.net
198.203.127.1	A	ns1.cps-k12.org
198.203.127.7	A	ns2.cpsboe.k12.oh.us
198.203.127.7	A	ns2.cps-k12.org
198.203.127.150	PTR	aikencollegecareer.cps-k12.org
198.203.127.150	PTR	aikenservice.cps-k12.org
198.203.127.150	PTR	aikenuniversity.cps-k12.org