Robtex

Up: 72.26.32.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 72.26.40.0/22
Down right: 72.26.44.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
72.26.40.18	PTR	ppp-26-40-18.vtxb.net
72.26.40.18	A	uncle.sanbenito.net
72.26.40.18	A	mail.sanbenito.net
72.26.40.50	A	beads-etc.biz
72.26.42.23	PTR	gateway.vtxc.net
72.26.42.67	PTR	ppp-26-42-67.vtxc.net
72.26.42.67	A	*.spisd.org
72.26.42.67	A	cobalt.spisd.org
72.26.42.253	A	mestenauranium.com
72.26.44.2	PTR	ppp-26-44-2.vtxb.net
72.26.44.153	A	faithexch.stedmanwest.com
72.26.44.204	PTR	ppp-26-44-204.vtxb.net
72.26.46.71	A	mail.vtci.net
72.26.46.71	A	email.vtci.net
72.26.46.71	A	mail.vtx1.org
72.26.46.75	A	fw-nat-26-46-75.vtci.net
72.26.46.77	A	vpn.vtci.net
72.26.47.170	A	exchange.raymondvilleisd.org
72.26.47.187	PTR	ppp-26-47-187.vtxb.net
72.26.47.187	A	raymondvilleisd.org
72.26.47.189	A	ironport.raymondvilleisd.org
72.26.47.238	A	mx10.sharylandorchards.com
72.26.47.238	A	mail.innovativeblock.com
72.26.47.238	A	mainserver.synergisllc.com