Robtex

Up: 213.217.56.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 213.217.60.0/23
Down right: 213.217.62.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
213.217.60.0	PTR	213.217.60.0.parsonline.net
213.217.60.1	PTR	213.217.60.1.parsonline.net
213.217.60.2	PTR	ns.parsonline.net
213.217.60.2	A+PTR	ns.parsonline.org
213.217.60.2	A	ns.parsonline.com
213.217.60.3	PTR	smtp.hosting.parsonline.net
213.217.60.4	PTR	213.217.60.4.parsonline.net
213.217.60.11	PTR	213.217.60.11.parsonline.net
213.217.60.11	A	mail.madavi.com
213.217.60.11	A	hosting.parsonline.net
213.217.60.12	A+PTR	smtp.hosting.parsonline.net
213.217.60.12	A	mail.hosting.parsonline.net
213.217.60.13	PTR	213.217.60.13.parsonline.net
213.217.60.13	A	mail.coverco.ir
213.217.60.13	A	mail.entekhabsms.com
213.217.60.17	PTR	213.217.60.17.parsonline.net
213.217.60.17	A	mail2.hosting.parsonline.net
213.217.60.128	PTR	213.217.60.128.parsonline.net
213.217.60.170	PTR	ns4.parsonline.net
213.217.60.171	A+PTR	ns5.parsonline.net
213.217.60.172	A+PTR	ns6.parsonline.net
213.217.60.179	PTR	213.217.60.179.parsonline.net
213.217.60.179	A	ns7.parsonline.net
213.217.60.180	PTR	213.217.60.180.parsonline.net
213.217.60.180	A	ns8.parsonline.net
213.217.60.180	A	ns9.parsonline.net
213.217.60.182	PTR	213.217.60.182.parsonline.net
213.217.60.182	A	coverco.ir
213.217.60.182	A	calpeda.ir
213.217.60.186	PTR	213.217.60.186.parsonline.net
213.217.60.186	A	www.pekachemie.net
213.217.60.186	A	pekachemie.net
213.217.60.194	PTR	aria.schoolnet.ir
213.217.60.195	PTR	eshop.saf.ir
213.217.60.230	PTR	213.217.60.230.parsonline.net
213.217.60.237	PTR	213.217.60.237.parsonline.net
213.217.60.238	PTR	213.217.60.238.parsonline.net
213.217.60.242	PTR	213.217.60.242.parsonline.net
213.217.60.242	A	www.mahdavischool.com
213.217.60.242	A	mahdavischool.com
213.217.60.244	PTR	213.217.60.244.parsonline.net
213.217.60.249	PTR	213.217.60.249.parsonline.net
213.217.60.255	PTR	213.217.60.255.parsonline.net
213.217.61.0	PTR	213.217.61.0.parsonline.net
213.217.62.21	PTR	213.217.62.21.parsonline.net
213.217.62.21	A	basf-mame.com
213.217.62.21	A	mail.basf-me.com
213.217.62.66	PTR	213.217.62.66.parsonline.net
213.217.62.68	PTR	213.217.62.68.parsonline.net
213.217.62.84	PTR	213.217.62.84.parsonline.net
213.217.62.84	A	transport-edge.abfasb.ir
213.217.62.84	A	ns1.abfasb.ir
213.217.62.85	PTR	213.217.62.85.parsonline.net
213.217.62.102	PTR	213.217.62.102.parsonline.net
213.217.62.102	A	mail.pac.ir
213.217.62.146	PTR	mx10.parsonline.net
213.217.62.146	A	mxmail2.tckh.ir
213.217.63.2	PTR	213.217.63.2.parsonline.net