Robtex

Up: 144.74.64.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 144.74.64.0/22
Down right: 144.74.68.0/22

IP	Type	Hostname
144.74.65.1	A+PTR	tob-router-hsrp.rushnet.rpslmc.edu
144.74.65.27	A	rudrapport01.rush.edu
144.74.65.44	A	rudhemonc01.rush.edu
144.74.65.93	A	rpttbed.rush.edu
144.74.65.95	A	rudbo1.rush.edu
144.74.67.1	PTR	datactr-a-hsrp.rushnet.rpslmc.edu
144.74.67.1	A	tob-router-hsrp.rushnet.rpslmc.edu
144.74.67.3	A+PTR	tobdist-router.rushnet.rpslmc.edu
144.74.68.1	PTR	datactr-a-hsrp.rushnet.rpslmc.edu
144.74.68.1	A	tob-router-hsrp.rushnet.rpslmc.edu
144.74.68.3	A+PTR	tobdist-router.rushnet.rpslmc.edu
144.74.70.1	A	tob-router-hsrp.rushnet.rpslmc.edu
144.74.71.1	A	kellogg-router-hsrp.rushnet.rpslmc.edu
144.74.71.3	PTR	kellogg-router.rushnet.rpslmc.edu
144.74.71.5	PTR	mrxi2-575st.atr.rpslmc.edu
144.74.71.8	PTR	es2810-5tob.tob.rpslmc.edu
144.74.71.27	A+PTR	radprntr2.or.rpslmc.edu
144.74.71.32	PTR	atr0516b.atr.rpslmc.edu
144.74.71.35	A+PTR	acfac0587b.acfac.rpslmc.edu
144.74.71.43	PTR	tob0500h.tob.rpslmc.edu
144.74.71.50	PTR	tob0500o.tob.rpslmc.edu
144.74.71.57	PTR	tob0500v.tob.rpslmc.edu
144.74.71.67	PTR	tob0500ab.tob.rpslmc.edu
144.74.71.72	PTR	tob5315b.tob.rpslmc.edu
144.74.71.73	PTR	tob5005a.tob.rpslmc.edu
144.74.71.81	PTR	tob5503a.tob.rpslmc.edu
144.74.71.88	PTR	tob5108d.tob.rpslmc.edu
144.74.71.107	PTR	tob5213c.tob.rpslmc.edu
144.74.71.121	PTR	tob05325a.tob.rpslmc.edu
144.74.71.138	PTR	tob05325.tob.rpslmc.edu
144.74.71.152	PTR	tob05327b.tob.rpslmc.edu
144.74.71.163	PTR	tob5240b.tob.rpslmc.edu