Robtex

Up: 157.185.56.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 157.185.60.0/23
Down right: 157.185.62.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
157.185.60.1	A+PTR	portal.sparta.com
157.185.60.22	A	webmail.sparta.com
157.185.60.22	A	hsvisa.sparta.com
157.185.60.254	A+PTR	outside.sparta.com
157.185.60.254	A	landru.sparta.com
157.185.61.1	PTR	argotek.net
157.185.61.1	A	parsonsgsii.com
157.185.61.1	A	www.argotek.net
157.185.61.2	PTR	m4.sparta.com
157.185.61.11	PTR	ppmx1.sparta.com
157.185.61.76	A	salty.sparta.com
157.185.61.81	A	samd.org
157.185.61.86	A	logmait.com
157.185.61.86	A	www.logmait.com
157.185.61.254	A	landru61.sparta.com
157.185.62.13	A	ppmx1.parsonsgsii.com
157.185.62.14	A+PTR	ppmx2.parsonsgsii.com
157.185.62.254	A	landru62.sparta.com
157.185.63.101	PTR	lal.sparta.com
157.185.63.237	A	switch-63-237.sparta.com