Robtex

Up: 74.87.136.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 74.87.140.0/23
Down right: 74.87.142.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
74.87.142.18	PTR	rrcs-74-87-142-18.west.biz.rr.com
74.87.142.18	A	sol.datawedge.com
74.87.142.18	A	datawedge.asuscomm.com
74.87.142.26	A+PTR	rrcs-74-87-142-26.west.biz.rr.com
74.87.142.26	A	ns1.cca-school.net
74.87.142.27	A+PTR	rrcs-74-87-142-27.west.biz.rr.com
74.87.142.27	A	ns2.cca-school.net
74.87.142.50	A	rrcs-74-87-142-50.west.biz.rr.com
74.87.142.51	A	ns2.mayhosting.com
74.87.142.52	PTR	rrcs-74-87-142-52.west.biz.rr.com
74.87.142.52	A	mail.puppyplace.net
74.87.142.52	A	mail.iswerks.com
74.87.142.53	A+PTR	rrcs-74-87-142-53.west.biz.rr.com
74.87.142.53	A	tournorthidaho.com
74.87.142.70	PTR	rrcs-74-87-142-70.west.biz.rr.com
74.87.142.70	A	mail.polinyoung.com
74.87.142.84	A	unifi.intechtel.net
74.87.142.110	PTR	rrcs-74-87-142-110.west.biz.rr.com
74.87.142.110	A	remote.cdabible.org
74.87.142.122	A+PTR	mail.kcemss.org
74.87.142.166	PTR	rrcs-74-87-142-166.west.biz.rr.com
74.87.142.250	A	gbrfoods.com
74.87.143.38	A	rrcs-74-87-143-38.west.biz.rr.com
74.87.143.74	A+PTR	mail.haydenlakecc.com
74.87.143.74	A	remote.haydenlakecc.com
74.87.143.99	PTR	mail.mormfg.com
74.87.143.99	A	www.mormfg.com
74.87.143.99	A	mail.trafficalm.com
74.87.143.100	A	mail.mormfg.com
74.87.143.100	A	mail.mordisplay.com
74.87.143.126	A+PTR	rrcs-74-87-143-126.west.biz.rr.com
74.87.143.190	A+PTR	rrcs-74-87-143-190.west.biz.rr.com
74.87.143.190	A	syringafp.net
74.87.143.190	A	remote.syringafp.net
74.87.143.222	A	teckie.com
74.87.143.222	A	mail.teckie.com
74.87.143.222	A	*.teckie.com
74.87.143.226	A	mail.idsincorp.com