Robtex

Up: 212.1.128.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 212.1.160.0/20
Down right: 212.1.176.0/20

IP	Type	Hostname
212.1.160.1	A+PTR	frswgate01a.usi.net
212.1.160.12	A	ns7.usi.net
212.1.160.20	A	ins7.usi.net
212.1.160.106	A	isuain04.usi.net
212.1.160.123	A+PTR	isuanc02.usi.net
212.1.160.125	A	isuain02.usi.net
212.1.160.165	A	isuajs01.usi.net
212.1.161.4	A+PTR	frnxfj01a_reth0.usi.net
212.1.161.20	PTR	frnxafh03a-eth1-cluster.usi.net
212.1.161.20	A+PTR	ins8.usi.net
212.1.191.5	A	nls3aah02.usi.net
212.1.191.6	A	nlsuawa01.usi.net
212.1.191.9	A+PTR	nlsuawa01-vip3.usi.net
212.1.191.24	A	nlsuawa01-vip15.usi.net
212.1.191.42	A	nlsxawo01.usi.net
212.1.191.50	A	nlsxawo01.usi.net
212.1.191.163	A	amsuawa01.usi.net