Robtex

Up: 109.51.128.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 109.51.160.0/20
Down right: 109.51.176.0/20

IP	Type	Hostname
109.51.160.163	PTR	a109-51-160-163.cpe.netcabo.pt
109.51.163.62	A	a109-51-163-62.cpe.netcabo.pt
109.51.165.32	A+PTR	a109-51-165-32.cpe.netcabo.pt
109.51.165.221	A	a109-51-165-221.cpe.netcabo.pt
109.51.166.114	A	twawki.org
109.51.168.119	A	rrcentralinas.com
109.51.168.119	A	mail.rrcentralinas.com
109.51.171.149	A	a109-51-171-149.cpe.netcabo.pt
109.51.172.153	A	a109-51-172-153.cpe.netcabo.pt
109.51.178.235	A	webmail.oguerreiro.com
109.51.182.189	A	a109-51-182-189.cpe.netcabo.pt
109.51.183.229	A	nasoftpt.ddns.net
109.51.188.198	A	netsecpt.com