Robtex

Up: 144.90.0.0/15
Can't show all results, try to descend to a more specific CIDR
Down left: 144.90.0.0/17
Down right: 144.90.128.0/17

IP	Type	Hostname
144.90.136.4	A+PTR	ns1.pima.edu
144.90.136.5	A+PTR	ns2.pima.edu
144.90.136.13	PTR	smtp.pima.edu
144.90.136.13	A	outlook-test.pima.edu
144.90.136.13	A	smtp-gw-ext.pima.edu
144.90.136.17	PTR	pimareports.pima.edu
144.90.139.21	A	wc.pima.edu
144.90.139.24	A+PTR	aztecpress.pima.edu