Robtex

Up: 139.177.192.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 139.177.192.0/21
Down right: 139.177.200.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
139.177.192.0	PTR	unassigned.carebridge.net
139.177.192.17	PTR	unassigned.carebridge.net
139.177.192.17	A	rbldns4.spamrats.com
139.177.193.252	A	dns.cyberium.cc
139.177.195.15	A	allaboutwebservices.com
139.177.195.15	A	ns4.allaboutwebservices.com
139.177.195.15	A	ontariodriveins.com
139.177.196.242	PTR	unassigned.carebridge.net
139.177.196.242	A	mbm.legal
139.177.202.72	A	ns2.teolla.com
139.177.204.42	A	ns1.zoneedit.com
139.177.204.42	A	dns1.zednssec.com
139.177.204.42	A	dns1.zoneedit.com