Robtex

Up: 199.104.144.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 199.104.148.0/23
Down right: 199.104.150.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
199.104.148.96	PTR	hds1.sao.arizona.edu
199.104.148.98	PTR	pc8.sao.arizona.edu
199.104.150.50	A+PTR	mmt.mmto.arizona.edu
199.104.150.50	A	mmto.org
199.104.150.50	A	dns.mmto.arizona.edu
199.104.150.52	PTR	cholla.mmto.arizona.edu
199.104.150.52	A	cholla.mmto.org
199.104.150.123	A+PTR	strike.mmto.arizona.edu
199.104.151.46	A+PTR	base.sao.arizona.edu
199.104.151.139	A+PTR	veritas.sao.arizona.edu