Robtex

Up: 208.80.16.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 208.80.17.0/25
Down right: 208.80.17.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
208.80.17.31	A	payment2.corduro.com
208.80.17.41	PTR	mobilizeyourarmy.com
208.80.17.41	PTR	cdrinfo.corduro.com
208.80.17.41	PTR	event.corduro.com
208.80.17.43	A	pledgenow.com
208.80.17.45	A+PTR	www.givemobile.com
208.80.17.45	PTR	givemobile.com
208.80.17.45	A+PTR	*.givemobile.com
208.80.17.55	A	contribute.corduro.com
208.80.17.83	A	markettest.corduro.com
208.80.17.131	A	paymyagent.com
208.80.17.131	A	paymyagent.net
208.80.17.132	A	paymyebay.net
208.80.17.132	A	paymyebay.com
208.80.17.133	A	paymyvendor.net
208.80.17.133	A	paymyvendor.com
208.80.17.154	PTR	mobilize.corduro.com
208.80.17.154	A+PTR	mya.corduro.com
208.80.17.154	A	mobilizeyourpassion.net
208.80.17.160	PTR	corduro.net
208.80.17.160	PTR	receipt.corduro.com
208.80.17.160	PTR	www.corduro.net
208.80.17.161	A+PTR	corduro.com
208.80.17.161	PTR	*.corduro.com
208.80.17.161	A+PTR	www.corduro.com
208.80.17.162	A	achgateway.com
208.80.17.162	A	debitgateway.com
208.80.17.162	A	corduromerchantservices.net
208.80.17.165	A	offlicense.com
208.80.17.166	A+PTR	pledgenow.corduro.com
208.80.17.166	A	corduroevents.com