Robtex

Up: 208.72.176.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 208.72.180.0/23
Down right: 208.72.182.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
208.72.180.0	A+PTR	h0.180.72.208.ip.windstream.net
208.72.180.5	PTR	h5.180.72.208.ip.windstream.net
208.72.180.9	PTR	h9.180.72.208.ip.windstream.net
208.72.180.9	A	ncv.familydollar.net
208.72.180.15	A+PTR	ncnms08.familydollar.com
208.72.180.21	A+PTR	h21.180.72.208.ip.windstream.net
208.72.180.62	PTR	h62.180.72.208.ip.windstream.net
208.72.180.69	A+PTR	h69.180.72.208.ip.windstream.net
208.72.180.69	A	ftpfds.familydollar.com
208.72.180.74	A	ncfdsmail.familydollar.com
208.72.180.90	A+PTR	h90.180.72.208.ip.windstream.net
208.72.180.90	A	ncinipm1.familydollar.com
208.72.180.91	A+PTR	h91.180.72.208.ip.windstream.net
208.72.180.91	A	ncns1.familydollar.com
208.72.180.159	A+PTR	h159.180.72.208.ip.windstream.net
208.72.180.159	A	mail.wip.familydollar.com
208.72.180.170	A+PTR	h170.180.72.208.ip.windstream.net
208.72.180.170	A	myfamilydollar401k.com
208.72.180.170	A	myfamilydollar401k.org
208.72.180.186	PTR	h186.180.72.208.ip.windstream.net
208.72.180.253	PTR	h253.180.72.208.ip.windstream.net
208.72.181.97	A+PTR	h97.181.72.208.ip.windstream.net
208.72.182.9	PTR	fdsv.familydollar.net
208.72.182.9	A+PTR	iav.familydollar.net
208.72.182.9	PTR	ncv.familydollar.net
208.72.182.74	A+PTR	iafdsmail.familydollar.com
208.72.182.90	A+PTR	h90.182.72.208.ip.windstream.net
208.72.182.90	A	iainipm1.familydollar.com
208.72.182.91	A	ians1.familydollar.com
208.72.182.170	PTR	h170.182.72.208.ip.windstream.net
208.72.182.170	A	myfamilydollar401k.com
208.72.182.170	A	myfamilydollar401k.org
208.72.183.255	A+PTR	h255.183.72.208.ip.windstream.net