Robtex

Up: 77.246.228.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 77.246.228.0/25
Down right: 77.246.228.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
77.246.228.2	PTR	mail.sozwezdie.com
77.246.228.6	A	mx1.eventiada.com
77.246.228.14	A+PTR	mail.spasibosb.ru
77.246.228.14	A	mail.cplsb.ru
77.246.228.26	PTR	mail.ntbgroup.ru
77.246.228.26	A	mail.ntbdevelopment.ru
77.246.228.26	A	mail.ntb-d.ru
77.246.228.38	A	mx1.fhv.ru
77.246.228.46	A+PTR	mx.saprun.com
77.246.228.46	A	mail.saprun.ru
77.246.228.46	A	mail.bipoint.ru
77.246.228.58	PTR	owa.rus.shiseido.com
77.246.228.90	PTR	mail.metprom.net
77.246.228.91	PTR	mail.metprom.net
77.246.228.98	PTR	mailserver.ester.ru
77.246.228.102	A+PTR	mx0.fhv.ru
77.246.228.106	A+PTR	mx2.axiomatica.ru
77.246.228.118	PTR	pop.art-com.ru
77.246.228.138	A+PTR	mx0.elefante.ru
77.246.228.138	A	mx.eventiada.ru
77.246.228.146	PTR	prmtech.ru
77.246.228.203	PTR	mail2.spiritdsp.com
77.246.228.203	A	mail2.videomost.com
77.246.228.203	A	mail2.spiritdsp.ru
77.246.228.218	PTR	mail4.trivia.ru
77.246.228.230	A+PTR	mail.sora-group.ru
77.246.228.230	A	owa.sora-group.ru
77.246.228.233	A	saprun.ru
77.246.228.233	A	saprun.com
77.246.228.245	PTR	mail.rgmk.su
77.246.228.250	PTR	mx1.oaomoesk.com