Robtex

Up: 198.140.24.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 198.140.26.0/24
Down right: 198.140.27.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
198.140.26.36	A	learning.osisoft.com
198.140.26.37	A	partners.osisoft.com
198.140.26.38	A	vcampus.osisoft.com
198.140.26.49	A+PTR	ssoadfsbe.osisoft.com
198.140.26.51	A	livelibrary.osisoft.com
198.140.26.52	PTR	picoresight.osisoft.com
198.140.26.52	PTR	www.osisoft.co.jp
198.140.26.52	PTR	picoresight.com
198.140.26.77	A+PTR	userfeedback.osisoft.com
198.140.26.84	A	nameserver1.osisoft.com