Robtex

Up: 199.4.18.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 199.4.18.0/25
Down right: 199.4.18.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
199.4.18.2	A+PTR	nausers.mccann.com
199.4.18.131	A+PTR	mis2.mccann.com
199.4.18.140	A	ftp.mccannsf.com
199.4.18.170	A+PTR	studio6hundred.com
199.4.18.170	A+PTR	studio6hundred.net
199.4.18.170	PTR	www.studio6hundred.com
199.4.18.185	A+PTR	kikk-heritage.com
199.4.18.185	PTR	simcity-labm.com
199.4.18.185	A	dockerstransfer.com
199.4.18.200	A	namail2.mccann.com
199.4.18.200	A	mrmsanfrancisco.com