Robtex

Up: 206.251.64.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 206.251.96.0/20
Down right: 206.251.112.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
206.251.100.2	A+PTR	www.verizonnoc.com
206.251.100.2	A	cyber2.verizonnoc.com
206.251.100.2	A	gtenoc.com
206.251.104.1	A	e0.montecito.bbnplanet.net
206.251.104.1	A	montecito.bbnplanet.net
206.251.116.247	A	newmail.gte.net