Robtex

Up: 216.98.176.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 216.98.180.0/23
Down right: 216.98.182.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.98.180.10	PTR	vspan.com
216.98.180.10	PTR	ns1.btvideoconferencing.com
216.98.180.10	PTR	ns1.vspan.com
216.98.180.22	A	wwwbak.vspan.com
216.98.180.23	A+PTR	was1.peerdigital.com
216.98.180.25	A+PTR	mail2.btvideoconferencing.com
216.98.180.25	A+PTR	mail2.conferencesetup.com
216.98.180.25	PTR	mail2.reservationgroup.com
216.98.180.28	A	engageaudio01.vspan.com
216.98.180.29	A+PTR	ec.vspan.com
216.98.180.29	A+PTR	ec1.vspan.com
216.98.180.30	PTR	ec2.vspan.com
216.98.180.30	A+PTR	ecbak.vspan.com
216.98.180.32	A+PTR	hhmobile.vspan.com
216.98.180.35	A+PTR	collaboration.vspan.com
216.98.180.36	A	wstevo02.wireone.com
216.98.180.38	A+PTR	www.peerdigital.com
216.98.180.38	PTR	webvpn.vspan.com
216.98.180.38	PTR	webvpn.wireone.com
216.98.180.39	A	wwwbak.conferencesetup.com
216.98.180.48	A+PTR	audio01.vspan.com
216.98.180.54	A	mail.simple2meet.com
216.98.180.56	A+PTR	mojo-kop.wireone.com
216.98.180.60	A	rem.vspan.com
216.98.180.60	A	ns2a.vspan.com
216.98.180.103	PTR	vpn4.vspan.com
216.98.180.103	A+PTR	vpn4.wireone.com
216.98.180.104	A	remote.vspan.com
216.98.180.104	A	vpn5.vspan.com
216.98.180.104	A	vpn4.vspan.com
216.98.180.105	A	engageweb01.wireone.com
216.98.180.109	PTR	vpn5.vspan.com
216.98.180.109	A+PTR	vpn5.wireone.com
216.98.180.110	A	remote.wireone.com
216.98.180.114	A+PTR	wwwbak.wireone.com
216.98.180.117	A	upload.vspan.com
216.98.180.199	A	outgoing.vspan.com
216.98.181.1	A+PTR	edge-kop.vspan.com
216.98.182.136	A	meetmevideo.com