Robtex

Up: 65.17.28.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 65.17.28.0/25
Down right: 65.17.28.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
65.17.28.2	PTR	host65-17-28-2.birch.net
65.17.28.8	PTR	host65-17-28-8.birch.net
65.17.28.9	PTR	host65-17-28-9.birch.net
65.17.28.12	PTR	host65-17-28-12.birch.net
65.17.28.13	PTR	host65-17-28-13.birch.net
65.17.28.35	PTR	host65-17-28-35.birch.net
65.17.28.55	PTR	host65-17-28-55.birch.net
65.17.28.58	PTR	host65-17-28-58.birch.net
65.17.28.63	PTR	host65-17-28-63.birch.net
65.17.28.75	PTR	host65-17-28-75.birch.net
65.17.28.95	PTR	host65-17-28-95.birch.net
65.17.28.146	A	mail.starrpublisher.com
65.17.28.146	A	den.starrcorp.com
65.17.28.146	A	fx1.starrcorp.com
65.17.28.149	A	ns2.magcs.com
65.17.28.181	PTR	ncsmags.com
65.17.28.181	A	smtp.magcs.com
65.17.28.181	A	mail.starrcorp.com
65.17.28.183	PTR	host65-17-28-183.birch.net
65.17.28.183	A	api.ncsfulfillment.com
65.17.28.184	PTR	host65-17-28-184.birch.net
65.17.28.184	A	ns.magcs.com
65.17.28.184	A	*.magcs.com
65.17.28.186	PTR	host65-17-28-186.birch.net
65.17.28.250	PTR	host65-17-28-250.birch.net