Robtex

Up: 213.88.0.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 213.88.32.0/20
Down right: 213.88.48.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
213.88.33.2	PTR	mail.chuvashavtodor.ru
213.88.33.32	PTR	static-213-88-33-32.netbynet.ru
213.88.33.32	A	mail.amggroup.su
213.88.33.32	A	dc2.amggroup.su
213.88.36.44	A	mail.cto21.ru
213.88.36.44	A	cto21.info
213.88.36.44	A	xn--21-emcpt.xn--p1ai
213.88.37.57	A	ns2.lig-cs.ru
213.88.37.57	A	farmfriends.ru
213.88.37.57	A	mail.lig-cs.ru
213.88.42.107	A	ns2.serv16.ru
213.88.42.195	PTR	static-213-88-42-195.netbynet.ru
213.88.48.19	A	mx2.ikchr.ru
213.88.49.25	A	ns2.21chzsm.ru
213.88.49.25	A	ns1.21chzsm.ru
213.88.49.25	A	mail.21chzsm.ru
213.88.49.71	A	serverok21.ru
213.88.49.71	A	*.udm-hub.ru
213.88.49.71	A	nsk-connect.ru
213.88.52.19	A	mx.garant-zakon.ru
213.88.52.19	A	mail.garant-zakon.ru
213.88.54.71	A	domisan.ru
213.88.56.0	PTR	static-213-88-56-0.netbynet.ru
213.88.57.74	A	mail.polisproject.ru
213.88.62.97	PTR	static-213-88-62-97.netbynet.ru