Robtex

Up: 139.255.208.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 139.255.208.0/23
Down right: 139.255.210.0/23

IP	Type	Hostname
139.255.209.38	PTR	ln-static-139-255-209-38.link.net.id
139.255.210.1	PTR	ln-static-139-255-210-1.link.net.id
139.255.210.21	PTR	ln-static-139-255-210-21.link.net.id
139.255.210.24	PTR	ln-static-139-255-210-24.link.net.id
139.255.210.26	PTR	ln-static-139-255-210-26.link.net.id
139.255.210.33	PTR	ln-static-139-255-210-33.link.net.id
139.255.210.35	PTR	ln-static-139-255-210-35.link.net.id
139.255.210.38	PTR	ln-static-139-255-210-38.link.net.id
139.255.210.39	PTR	ln-static-139-255-210-39.link.net.id
139.255.210.64	PTR	ln-static-139-255-210-64.link.net.id
139.255.210.74	PTR	ln-static-139-255-210-74.link.net.id
139.255.210.83	PTR	ln-static-139-255-210-83.link.net.id
139.255.210.96	PTR	ln-static-139-255-210-96.link.net.id
139.255.210.98	PTR	ln-static-139-255-210-98.link.net.id
139.255.210.123	PTR	ln-static-139-255-210-123.link.net.id
139.255.210.125	PTR	ln-static-139-255-210-125.link.net.id
139.255.210.135	PTR	ln-static-139-255-210-135.link.net.id
139.255.210.138	PTR	ln-static-139-255-210-138.link.net.id
139.255.210.166	PTR	ln-static-139-255-210-166.link.net.id
139.255.210.189	PTR	ln-static-139-255-210-189.link.net.id
139.255.210.203	PTR	ln-static-139-255-210-203.link.net.id
139.255.210.210	PTR	ln-static-139-255-210-210.link.net.id
139.255.210.227	PTR	ln-static-139-255-210-227.link.net.id
139.255.210.232	PTR	ln-static-139-255-210-232.link.net.id
139.255.210.239	PTR	ln-static-139-255-210-239.link.net.id
139.255.210.253	PTR	ln-static-139-255-210-253.link.net.id