Robtex

Up: 128.164.0.0/15
Can't show all results, try to descend to a more specific CIDR
Down left: 128.165.0.0/17
Down right: 128.165.128.0/17

IP	Type	Hostname
128.165.3.2	A	y-128-165-3-2.lanl.gov
128.165.4.2	A+PTR	auth1.lanl.gov
128.165.4.15	A	y-128-165-4-15.lanl.gov
128.165.4.18	A	webcms.lanl.gov
128.165.4.18	A	cms.lanl.gov
128.165.4.101	PTR	mailrelay1.lanl.gov
128.165.11.85	A	y-128-165-11-85.lanl.gov
128.165.11.88	A	y-128-165-11-88.lanl.gov
128.165.14.2	A	y-128-165-14-2.lanl.gov
128.165.15.111	A	y-128-165-15-111.lanl.gov
128.165.15.203	A	y-128-165-15-203.lanl.gov
128.165.15.220	A	y-128-165-15-220.lanl.gov
128.165.15.231	A	y-128-165-15-231.lanl.gov
128.165.18.2	A	y-128-165-18-2.lanl.gov
128.165.20.2	A	y-128-165-20-2.lanl.gov
128.165.30.2	A	y-128-165-30-2.lanl.gov
128.165.30.169	A	tmail.lanl.gov
128.165.31.9	A	y-128-165-31-9.lanl.gov
128.165.31.12	A	y-128-165-31-12.lanl.gov
128.165.31.16	A	y-128-165-31-16.lanl.gov
128.165.31.99	A	y-128-165-31-99.lanl.gov
128.165.32.49	A+PTR	y-128-165-32-49.lanl.gov
128.165.33.2	A+PTR	y-128-165-33-2.lanl.gov
128.165.63.50	A	y-128-165-63-50.lanl.gov
128.165.75.189	A	y-128-165-75-189.lanl.gov
128.165.108.189	A+PTR	y-128-165-108-189.lanl.gov
128.165.114.111	A	y-128-165-114-111.lanl.gov
128.165.148.84	A	y-128-165-148-84.lanl.gov
128.165.157.126	A+PTR	y-128-165-157-126.lanl.gov
128.165.160.16	A	y-128-165-160-16.lanl.gov
128.165.170.195	A	y-128-165-170-195.lanl.gov
128.165.184.207	A+PTR	sp2013-p-f5.lanl.gov
128.165.185.30	A	ebzp1.lanl.gov
128.165.185.45	A	esh-p2.lanl.gov
128.165.185.68	A	mst.lanl.gov
128.165.185.110	A	webauth.lanl.gov
128.165.213.228	A+PTR	y-128-165-213-228.lanl.gov
128.165.230.164	A	dttjfstkgujuu.pro
128.165.251.150	A	y-128-165-251-150.lanl.gov