Robtex

Up: 199.184.176.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 199.184.177.0/25
Down right: 199.184.177.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
199.184.177.1	PTR	p50.controltechnolgy.com
199.184.177.2	PTR	dog.controltechnolgy.com
199.184.177.3	PTR	cat.controltechnolgy.com
199.184.177.5	PTR	cow.controltechnolgy.com
199.184.177.7	PTR	pig.controltechnolgy.com
199.184.177.20	A+PTR	inet.controltechnology.com
199.184.177.20	A	www.controltechnology.com
199.184.177.20	A	mail.open-road.com
199.184.177.67	PTR	hippo.controltechnolgy.com
199.184.177.68	PTR	mail.controltechnology.com
199.184.177.68	A	spamfilter.controltechnology.com
199.184.177.108	PTR	cd.controltechnology.com
199.184.177.247	A+PTR	exchange.controltechnology.com
199.184.177.247	A	mail.controltechnology.com