Robtex

Up: 198.148.76.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 198.148.78.0/24
Down right: 198.148.79.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
198.148.78.4	A+PTR	mirrors2.vrt.sourcefire.com
198.148.78.4	A	db.us.big.clamav.net
198.148.78.4	A	db.ac.clamav.net
198.148.78.5	PTR	clamintel01.vrt.sourcefire.com
198.148.78.5	A	intel.clamav.net
198.148.78.19	A+PTR	ava-bugzil-01prd.vrt.sourcefire.com
198.148.78.19	A	bugzilla.vrt.sourcefire.com
198.148.78.78	A	sftp.sourcefire.com
198.148.79.2	A+PTR	fmdtalos2.vrt.sourcefire.com
198.148.79.6	PTR	moist.vrt.sourcefire.com
198.148.79.38	PTR	ns1a.labs.sourcefire.com
198.148.79.38	A	ns1a.clamav.org
198.148.79.38	A	ns1a.snort-rules.org
198.148.79.39	PTR	ns2a.labs.sourcefire.com
198.148.79.52	A+PTR	intel.api.sourcefire.com
198.148.79.53	A+PTR	lists.clamav.net
198.148.79.54	A+PTR	clamav.net
198.148.79.54	A	clamav.com
198.148.79.54	A	wiki.clamav.net
198.148.79.55	PTR	updates.vrt.sourcefire.com
198.148.79.57	A	labs.snort.org
198.148.79.58	A+PTR	intelligence.sourcefire.com
198.148.79.59	A	snortrules.com
198.148.79.59	A	snort-rules.org
198.148.79.59	A	talosintel.com
198.148.79.60	A+PTR	avasds.vrt.sourcefire.com
198.148.79.60	A	v2.sds.cisco.com
198.148.79.66	A+PTR	mirrors.vrt.sourcefire.com
198.148.79.66	A	sourcefire.portsnap.freebsd.org
198.148.79.71	A+PTR	ns0.vrt.sourcefire.com
198.148.79.71	A	ns0.daemonlogger.org
198.148.79.71	A	ns0.talosintel.net
198.148.79.72	A	bugzilla.clamav.net
198.148.79.80	PTR	avasds2.vrt.sourcefire.com
198.148.79.80	A	v3.sds.cisco.com
198.148.79.88	PTR	ofeeds02.vrt.sourcefire.com
198.148.79.134	A+PTR	moist.vrt.sourcefire.com