Robtex

Up: 71.28.224.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 71.28.240.0/21
Down right: 71.28.248.0/21

IP	Type	Hostname
71.28.240.192	A+PTR	h192.240.28.71.dynamic.ip.windstream.net
71.28.243.183	A	h183.243.28.71.dynamic.ip.windstream.net
71.28.244.21	A	h21.244.28.71.dynamic.ip.windstream.net
71.28.244.208	A+PTR	h208.244.28.71.dynamic.ip.windstream.net
71.28.244.240	PTR	h240.244.28.71.dynamic.ip.windstream.net
71.28.244.244	A	h244.244.28.71.dynamic.ip.windstream.net
71.28.244.245	A	h245.244.28.71.dynamic.ip.windstream.net
71.28.244.247	A	h247.244.28.71.dynamic.ip.windstream.net
71.28.247.51	PTR	h51.247.28.71.dynamic.ip.windstream.net
71.28.252.251	A+PTR	h251.252.28.71.dynamic.ip.windstream.net
71.28.254.29	PTR	h29.254.28.71.dynamic.ip.windstream.net
71.28.255.121	A+PTR	h121.255.28.71.dynamic.ip.windstream.net
71.28.255.129	A+PTR	h129.255.28.71.dynamic.ip.windstream.net