Robtex

Up: 66.219.44.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 66.219.44.0/25
Down right: 66.219.44.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
66.219.44.4	PTR	net-66-219-44-4.static-customer.corenap.com
66.219.44.4	A	twua.org
66.219.44.6	PTR	net66-219-44-6.static-customer.corenap.com
66.219.44.6	A	twua.org
66.219.44.6	A	*.twua.org
66.219.44.7	PTR	net-66-219-44-7.static-customer.corenap.com
66.219.44.7	A	web01.twua.org
66.219.44.8	A	mail.twua.org
66.219.44.9	A	dns1.twua.org
66.219.44.33	A	aus-colo-h102.corenap.com
66.219.44.34	A	aus-colo-01-g6-0-0-102.corenap.com
66.219.44.35	A	aus-colo-02-g6-0-0-102.corenap.com
66.219.44.60	A	ns02.scottiesfirehouse.com
66.219.44.68	PTR	net66-219-44-68.static-customer.corenap.com
66.219.44.97	A	aus-colo-h103.corenap.com
66.219.44.98	A	aus-colo-01-g6-0-0-103.corenap.com
66.219.44.99	A	aus-colo-02-g6-0-0-103.corenap.com
66.219.44.105	A	aus-colo-h104.corenap.com
66.219.44.106	A	aus-colo-01-g6-0-0-104.corenap.com
66.219.44.107	A	aus-colo-02-g6-0-0-104.corenap.com
66.219.44.108	A	painless.nu
66.219.44.108	A	mail.painless.nu
66.219.44.114	PTR	net66-219-44-114.static-customer.corenap.com
66.219.44.114	A	virtualsensei.org
66.219.44.114	A	virtual-sensei.com
66.219.44.130	PTR	web1.cleonline.com
66.219.44.130	A	www.cleonline.com
66.219.44.148	PTR	net66-219-44-148.static-customer.corenap.com
66.219.44.148	A	anti1.gravityantispam.com
66.219.44.150	A	ice.gravityantispam.com
66.219.44.161	PTR	net66-219-44-161.static-customer.corenap.com
66.219.44.161	A	aus-colo-h106.corenap.com
66.219.44.162	A	aus-colo-01-g6-0-0-106.corenap.com
66.219.44.225	A	aus-colo-h107.corenap.com
66.219.44.226	A	aus-sw-wireless-customer.corenap.com
66.219.44.226	A	aus-colo-01-g6-0-0-107.corenap.com
66.219.44.227	A	aus-colo-02-g6-0-0-107.corenap.com
66.219.44.229	A	netbot-01.corenap.com
66.219.44.230	A	netbot-02.corenap.com
66.219.44.235	A	cam-03.corenap.com
66.219.44.245	A	aus-colo-02-g6-0-0-110.corenap.com