Robtex

Up: 198.253.32.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 198.253.48.0/21
Down right: 198.253.56.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
198.253.48.2	PTR	vpnsd.spawar.navy.mil
198.253.48.3	A+PTR	clock1.spawar.navy.mil
198.253.48.3	A	ntp1.dren.net
198.253.48.3	A	ntp.dren.net
198.253.48.5	A	webvpn.spawar.navy.mil
198.253.48.22	A	www.spawartechtransfer.navy.mil
198.253.48.23	PTR	www.peoc4i.navy.mil
198.253.48.25	A	onenet-gw.sd.spawar.navy.mil
198.253.48.38	A	spawar.hpc.mil
198.253.49.1	PTR	taco6.spawar.navy.mil
198.253.49.1	A	taco6.nci.net
198.253.49.2	PTR	fw.sd.spawar.navy.mil
198.253.49.4	A+PTR	hpcfw.sd.spawar.navy.mil
198.253.49.6	A	proxy.sd.spawar.navy.mil
198.253.50.4	A	ftp.nosc.mil
198.253.50.4	A	mx0.nosc.mil
198.253.50.4	A	mirror.nosc.mil
198.253.50.5	PTR	narf.v6.dren.net
198.253.50.5	A	www.v6.dren.net
198.253.52.1	PTR	fw.sd.spawar.navy.mil
198.253.52.4	PTR	publicdb.storefront.mil
198.253.52.11	A	west.infosec.navy.mil
198.253.54.4	A	adams.sd.spawar.navy.mil
198.253.54.5	A+PTR	leopard.sd.spawar.navy.mil
198.253.54.28	PTR	maxwell.sd.spawar.navy.mil
198.253.56.38	A	webvpn.sd1net.navy.mil
198.253.58.3	A	clock1.spawar.navy.mil
198.253.58.3	A	ntp1.dren.mil
198.253.58.18	PTR	extender-vallar.sd.spawar.navy.mil
198.253.58.19	PTR	extender-rmcmdr.sd.spawar.navy.mil
198.253.59.5	A	webvpn.spawar.navy.mil