Robtex

Up: 198.245.172.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 198.245.174.0/24
Down right: 198.245.175.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
198.245.174.37	A	mail2.americantower.com
198.245.174.37	A	spam.americantower.com
198.245.174.40	A	transcend.in
198.245.174.40	A	americantower.com.co
198.245.174.40	A	americantowers.sg
198.245.174.100	A	ns3.americantower.com
198.245.174.102	A	blgtm01.americantower.com
198.245.175.10	A	onairaccess.com
198.245.175.10	A	onairaccess.americantower.com
198.245.175.25	A	email.americantower.com
198.245.175.37	A+PTR	mail1.americantower.com
198.245.175.38	A	onairaccess.com
198.245.175.38	A	sitelocator.com
198.245.175.38	A	www.sitelocator.com
198.245.175.40	A	br-towers.net
198.245.175.40	A	www.americantower.net
198.245.175.40	A	www.americantower.pe
198.245.175.47	A	sitelocatormobile.com
198.245.175.50	A	oaamobile.americantower.com
198.245.175.68	A	ftp.americantower.com
198.245.175.70	PTR	sitelocator.com
198.245.175.70	A+PTR	sitelocator.net
198.245.175.70	A+PTR	oaaminternal.americantower.com
198.245.175.90	A	imap.americantower.com
198.245.175.90	A	oa.americantower.com
198.245.175.98	A	sso.americantower.com
198.245.175.100	PTR	ns1.americantower.com
198.245.175.102	A	wtgtm01.americantower.com