Robtex

Up: 74.87.144.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 74.87.144.0/24
Down right: 74.87.145.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
74.87.144.30	A+PTR	rrcs-74-87-144-30.west.biz.rr.com
74.87.144.33	A+PTR	rrcs-74-87-144-33.west.biz.rr.com
74.87.144.38	A	mail.spragues.com
74.87.144.38	A	spragueserver.spragues.com
74.87.144.126	PTR	rrcs-74-87-144-126.west.biz.rr.com
74.87.144.126	A	sonicwall.icyuma.org
74.87.144.126	A	sonicwall.icyuma.com
74.87.144.129	A+PTR	rrcs-74-87-144-129.west.biz.rr.com
74.87.144.245	A+PTR	rrcs-74-87-144-245.west.biz.rr.com
74.87.145.17	A+PTR	rrcs-74-87-145-17.west.biz.rr.com
74.87.145.36	A+PTR	rrcs-74-87-145-36.west.biz.rr.com
74.87.145.37	PTR	rrcs-74-87-145-37.west.biz.rr.com
74.87.145.37	A	parkcomm.net
74.87.145.42	A+PTR	rrcs-74-87-145-42.west.biz.rr.com
74.87.145.144	A+PTR	rrcs-74-87-145-144.west.biz.rr.com
74.87.145.156	A+PTR	rrcs-74-87-145-156.west.biz.rr.com
74.87.145.204	A+PTR	rrcs-74-87-145-204.west.biz.rr.com