Robtex

Up: 216.225.240.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 216.225.248.0/22
Down right: 216.225.252.0/22

IP	Type	Hostname
216.225.248.12	PTR	account.lax.qa8.juno.com
216.225.248.17	A	register.qa8.juno.com
216.225.248.18	PTR	my.lax.qa8.netzero.net
216.225.248.18	A	qa8.netzero.net
216.225.248.21	A	search.lax.qa8.untd.com
216.225.248.34	A	apserv.lax.qa8.untd.com
216.225.248.90	A+PTR	start.qa8.netzero.net
216.225.248.95	A	start-restrict.qa8.netzero.net
216.225.248.100	A+PTR	start2.qa8.mybluelight.com
216.225.248.178	A	store.qa8.juno.com
216.225.249.15	A	account.qa10.emailmyname.com
216.225.249.15	A	account.lax.qa10.emailmyname.com
216.225.249.33	A+PTR	webloyalty.qa10.netzero.net
216.225.249.33	A	webloyalty.lax.qa10.netzero.net
216.225.249.44	A	signup.qa9.netzero.net
216.225.249.44	A	signup.lax.qa9.netzero.net
216.225.249.45	A	signup.qa10.netzero.net
216.225.249.51	A	message.lax.qa10.juno.com
216.225.249.51	A	message.qa10.juno.com
216.225.249.56	PTR	restrict.qa9.juno.com
216.225.249.56	A	restrict.lax.qa9.juno.com
216.225.249.64	A+PTR	search.qa9.mybluelight.com
216.225.249.88	PTR	register-w1q1.qa.juno.com
216.225.251.16	A	register.stg.netzero.net
216.225.251.23	A	my.lax.stg2.netzero.net
216.225.251.23	A	stg2.netzero.net
216.225.251.38	A	circuitcity.stg.netzero.net
216.225.251.42	A+PTR	zm.lax.stg.untd.com
216.225.251.50	A+PTR	mx.lax.stg.untd.com
216.225.251.50	A	mx.vgs.stg.untd.com
216.225.251.51	A	my2.lax.stg.juno.com
216.225.251.57	A+PTR	my-message.lax.stg.untd.com
216.225.251.58	A	my.lax.stg.untd.com
216.225.251.59	A	my-restrict.lax.stg.untd.com
216.225.251.61	A	my-z3lock.lax.stg.untd.com
216.225.251.67	A	radius.lax.stg.untd.com
216.225.251.68	A	register.stg.netzero.com
216.225.251.71	A	searchap.lax.stg.untd.com
216.225.251.99	PTR	start2.stg.mybluelight.com
216.225.252.91	A+PTR	my-restrict.lax.stg2.netzero.net
216.225.252.92	A+PTR	my-restrict.lax.stg2.juno.com
216.225.252.98	A+PTR	start.stg2.netzero.net
216.225.253.66	PTR	www.mysitebeta2.com
216.225.253.66	A	mysitebeta2.com
216.225.254.36	PTR	authns3.emailmyname.com
216.225.254.37	PTR	authns3.mypoints.com
216.225.254.38	A+PTR	authns3.untd.com
216.225.254.38	A	authns.lax.untd.com
216.225.254.38	A	authns.iad.untd.com
216.225.254.59	A	greatamericanad.com