Robtex

Up: 165.112.224.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 165.112.240.0/21
Down right: 165.112.248.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
165.112.248.14	A+PTR	ai-metro1.niaid.nih.gov
165.112.253.31	A	vcse1.vam.csr.nih.gov
165.112.253.97	A+PTR	csrweb.nih.gov
165.112.253.97	A+PTR	csrweb.csr.nih.gov
165.112.255.6	PTR	bmissjs.cit.nih.gov
165.112.255.6	A	nhscjobs.hrsa.gov
165.112.255.6	A	connector.hrsa.gov
165.112.255.13	PTR	bmiss.hrsa.gov