Robtex

Up: 128.140.128.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 128.140.144.0/21
Down right: 128.140.152.0/21

IP	Type	Hostname
128.140.144.3	A	smtp.nasum.net
128.140.144.8	A	smtp.voice-365.net
128.140.144.67	PTR	ip144067.ipdirections.net
128.140.150.226	PTR	extranet1.ipdirections.net
128.140.150.226	A	extranet.ipdirections.net
128.140.150.232	A	faxserv.net
128.140.150.232	A	fax.faxserv.net
128.140.150.236	A	apnf-publications.fr
128.140.150.240	A	exchange.ipdirections.net
128.140.150.241	A+PTR	dns1.ipdirections.net
128.140.150.241	A	smtp4.ipdirections.net
128.140.150.242	PTR	dns2.ipdirections.net
128.140.150.242	A	smtp2.ipdirections.net
128.140.150.243	PTR	ciel.ipdirections.net
128.140.153.3	PTR	128-153-3.test.cytanet.com.cy
128.140.159.3	PTR	128-159-3.test.cytanet.com.cy
128.140.159.4	PTR	128-159-4.test.cytanet.com.cy