Robtex

Up: 198.153.128.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 198.153.129.0/25
Down right: 198.153.129.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
198.153.129.24	A	www.spargroupinc.com
198.153.129.24	A	sparcanada.ca
198.153.129.24	A	www.mforce.com
198.153.129.26	PTR	sparmobile.sparinc.com
198.153.129.39	PTR	sftp.sparinc.com
198.153.129.57	PTR	exchangevm.sparinc.com
198.153.129.58	PTR	exchangevm2.sparinc.com
198.153.129.117	PTR	as2.sparinc.com
198.153.129.117	PTR	bizlink.sparinc.net
198.153.129.128	PTR	iis2.nationalmarketingservices.com
198.153.129.128	PTR	iis3.nationalmarketingservices.com
198.153.129.128	PTR	iis3.natlmktg.com
198.153.129.133	PTR	miweb22.sparinc.com
198.153.129.134	PTR	app1.sparinc.com
198.153.129.134	PTR	oms.sparinc.com
198.153.129.135	PTR	spareyes.sparinc.com
198.153.129.191	PTR	mi21.sparinc.com
198.153.129.192	PTR	mi22.sparinc.com
198.153.129.193	PTR	mi23.sparinc.com
198.153.129.194	PTR	mi24.sparinc.com
198.153.129.195	PTR	mi25.sparinc.com
198.153.129.196	PTR	mi26.sparinc.com
198.153.129.197	PTR	mi27.sparinc.com