Robtex

Up: 213.138.74.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 213.138.74.0/25
Down right: 213.138.74.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
213.138.74.26	A	marywong.us
213.138.74.26	A	merywong.ru
213.138.74.26	A	crunchy.ru
213.138.74.50	PTR	ip-213-138-74-50.spark-rostov.ru
213.138.74.59	PTR	ip-213-138-74-59.spark-rostov.ru
213.138.74.59	A	ns4.informa.ru
213.138.74.59	A	ns2.informa.ru
213.138.74.64	PTR	ip-213-138-74-64.spark-rostov.ru
213.138.74.66	PTR	rfniias.ru
213.138.74.67	A	mail2.rfniias.ru
213.138.74.67	A	media.rfniias.ru
213.138.74.74	A+PTR	mailserv.ugpa.ru
213.138.74.74	A	mail.ugpa.ru
213.138.74.75	A+PTR	ns.ugpa.ru
213.138.74.75	A	ugpa.ru
213.138.74.75	A	downloads.ugpa.ru
213.138.74.78	PTR	ip-213-138-74-78.spark-rostov.ru
213.138.74.84	PTR	ip-213-138-74-84.spark-rostov.ru
213.138.74.85	PTR	ip-213-138-74-85.spark-rostov.ru
213.138.74.95	PTR	ip-213-138-74-95.spark-rostov.ru
213.138.74.124	PTR	ip-213-138-74-124.spark-rostov.ru
213.138.74.131	PTR	ip-213-138-74-131.spark-rostov.ru
213.138.74.147	PTR	ip-213-138-74-147.spark-rostov.ru
213.138.74.165	A	mail.sapsun.su
213.138.74.235	PTR	ip-213-138-74-235.spark-rostov.ru
213.138.74.235	A	quasar.spark-users.ru