Robtex

Up: 66.211.0.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 66.211.0.0/24
Down right: 66.211.1.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
66.211.0.92	A	mssc-att.com
66.211.1.131	A	urrelay3.urrelay.com
66.211.1.150	A	bugzilla.urrelay.com
66.211.1.153	A	urrelay153.urrelay.com
66.211.1.171	A	nextalk.net
66.211.1.171	A	getconnectivity.com
66.211.1.171	A	btbcom.com
66.211.1.173	A	nextalk.net
66.211.1.173	A	btbcom.com
66.211.1.173	A	icglx.com
66.211.1.177	A	urrelay177.urrelay.com