Robtex

Up: 198.180.156.0/22
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Down left: 198.180.156.0/24
Down right: 198.180.157.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
198.180.156.4	A+PTR	barracuda.stepan.com
198.180.156.4	A	python.stepan.com
198.180.156.8	PTR	secureauth.stepan.com
198.180.156.9	PTR	python.stepan.com
198.180.156.9	A	ns.stepan.com
198.180.156.11	A+PTR	www.stepan.com
198.180.156.11	A	lipidnutrition.com
198.180.156.11	A	hallcomid.com
198.180.156.99	A+PTR	ns3.stepan.com
198.180.156.220	A	ns2.stepan.com