Robtex

Up: 208.93.48.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 208.93.48.0/23
Down right: 208.93.50.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
208.93.48.10	A	smsc.openmarket.com
208.93.48.10	A	smsc.dyn.openmarket.com
208.93.48.17	A+PTR	ns1.openmarket.com
208.93.48.18	A+PTR	ns3.openmarket.com
208.93.48.26	A+PTR	www-vdc.openmarket.com
208.93.48.26	A	www.openmarket.com
208.93.48.26	A	simplewire.com
208.93.48.28	A+PTR	vdc-numpro.openmarket.com
208.93.48.43	A+PTR	invoke-vdc.openmarket.com
208.93.48.43	A	servicemanager.dyn.openmarket.com
208.93.48.43	A	servicemanager.openmarket.com
208.93.48.70	A	notif-vdc.openmarket.com
208.93.48.82	A	vdc-prd-mail-001.openmarket.com
208.93.48.83	A	vdc-prd-mail-002.openmarket.com
208.93.48.85	A+PTR	vdc-prd-mail-003.openmarket.com
208.93.48.86	A	vdc-prd-spamfilter-001.openmarket.com
208.93.49.22	PTR	ns2.openmarket.com
208.93.51.25	A+PTR	ns2.openmarket.com
208.93.51.26	A+PTR	ns4.openmarket.com
208.93.51.30	A+PTR	invoke-wdc.openmarket.com
208.93.51.30	A	servicemanager.dyn.openmarket.com
208.93.51.30	A	servicemanager.openmarket.com
208.93.51.35	A+PTR	wdc-cie-fes.openmarket.com
208.93.51.39	A	smsc.openmarket.com
208.93.51.43	A+PTR	wdc-prd-mail-003.openmarket.com
208.93.51.45	A	salesforce.openmarket.com
208.93.51.58	A	wdc-prd-spamfilter-001.openmarket.com