Robtex

Up: 81.30.112.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 81.30.112.0/22
Down right: 81.30.116.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
81.30.112.10	A	ns1.slavrpk.ru
81.30.112.10	A	ns1.mirtelecom.pro
81.30.112.10	A	ns1.spectrcom.ru
81.30.112.11	A	ns2.spectrcom.ru
81.30.112.14	PTR	nns4.spectrcom.ru
81.30.112.46	A	mail.mirtelecom.pro
81.30.112.46	A	mmpk.ru
81.30.112.46	A	mirtelecom.pro
81.30.112.106	A+PTR	mx1.tander.ru
81.30.112.138	PTR	kmgk.ru
81.30.112.186	A	ns1.slavrpk.ru
81.30.112.186	A	ns1.spectrcom.ru
81.30.113.10	A	ns3.spectrcom.ru
81.30.113.10	A	ns2.slavrpk.ru
81.30.113.98	A+PTR	mail.kub-as.ru
81.30.113.163	A	mail.okocentr.ru
81.30.113.165	PTR	com.docexe.com
81.30.113.165	A	mail.okocentr.ru
81.30.113.232	A+PTR	mail1.medlex.ru
81.30.114.67	PTR	mx.ubs-m.ru
81.30.114.67	A	ns1.ubsm.ru
81.30.114.67	A	ns1.ubs-m.ru
81.30.114.68	PTR	mx.ubs-m.ru
81.30.114.232	PTR	mx10.otchet.tax23.ru
81.30.114.232	A	stat.tax23.ru
81.30.114.238	PTR	mx.inb2b.net
81.30.114.238	A	ns.kmf.ru
81.30.115.138	A	ns2.spectrcom.ru
81.30.115.138	A	ns3.spectrcom.ru
81.30.115.139	A	ns1.mirtelecom.pro
81.30.115.139	A	ns6.spectrcom.ru
81.30.115.141	PTR	mail.vfbank.ru
81.30.115.158	PTR	mx.act.su
81.30.115.158	A	www.worldclass-krasnodar.ru
81.30.115.158	A	worldclass-krasnodar.ru
81.30.115.170	PTR	mx10.trest-sugar.ru
81.30.115.170	A	xn----7sbb5aarrb9f3b.xn--p1ai
81.30.115.170	A	xn----7sbwpmbx.xn--p1ai
81.30.115.172	PTR	mx20.trest-sugar.ru
81.30.115.178	A+PTR	mx.act.su
81.30.115.178	A	mx.kagro.su
81.30.115.178	A	kagro.su
81.30.115.242	A	dorgis.ru
81.30.116.10	A+PTR	ns6.spectrcom.ru
81.30.116.10	A	ns2.mirtelecom.pro
81.30.116.62	A	kubash.ru
81.30.116.108	A	mail.promtek.biz
81.30.116.108	A	promtek.biz
81.30.116.112	A+PTR	mail.spzmail.ru
81.30.116.112	A	www.spz-pickup.ru
81.30.116.112	A	taxiya.ru
81.30.116.115	PTR	mail.slavrpk.ru
81.30.116.124	A	xn--b1agauihil.xn--p1ai
81.30.116.124	A	notelib.ru
81.30.116.124	A	eco-tehnology.ru
81.30.119.208	A	amptaman.ru