Robtex

Up: 139.255.224.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 139.255.224.0/21
Down right: 139.255.232.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
139.255.224.1	PTR	ln-static-139-255-224-1.link.net.id
139.255.224.11	PTR	ln-static-139-255-224-11.link.net.id
139.255.224.101	A+PTR	firstmedia.id
139.255.224.101	A	mail.firstmedia.id
139.255.224.106	A	smtp1.info.firstmedia.id
139.255.225.164	PTR	ln-static-139-255-225-164.link.net.id
139.255.228.208	PTR	ln-static-139-255-228-208.link.net.id
139.255.229.249	PTR	ln-static-139-255-229-249.link.net.id
139.255.231.147	PTR	ln-static-139-255-231-147.link.net.id
139.255.239.244	PTR	astariglobal.com
139.255.239.244	PTR	au.astariglobal.com
139.255.239.244	A+PTR	uk.astariglobal.com