Robtex

Up: 83.140.24.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 83.140.28.0/23
Down right: 83.140.30.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
83.140.28.0	PTR	83.140.28.0.biz.sta.port80.se
83.140.28.0	A	28.140.83.in-addr.arpa
83.140.28.7	PTR	83.140.28.7.biz.sta.port80.se
83.140.28.7	A	*.djerbi.se
83.140.28.7	A	djerbi.com
83.140.28.9	A+PTR	83.140.28.9.biz.sta.port80.se
83.140.28.9	A	83.140.28.9.dyn.rp80.se
83.140.28.9	A	ns.uptimesystems.se
83.140.29.20	PTR	83.140.29.20.biz.sta.port80.se
83.140.29.23	A	83.140.29.23.biz.sta.port80.se
83.140.29.75	A	83.140.29.75.biz.sta.port80.se
83.140.29.200	PTR	maria3.bulls.se
83.140.29.205	A	bulls.com.pl
83.140.29.255	PTR	83.140.29.255.biz.sta.port80.se
83.140.30.10	A	license.picsearch.com
83.140.30.11	A	media3.picsearch.com
83.140.30.11	A	images.picsearch.com
83.140.30.11	A	media4.picsearch.com
83.140.30.12	A	picsearch.com.mx
83.140.30.12	A	picsearch.org
83.140.30.12	A	picsearch.com.sg
83.140.30.18	A	upload.screen9.com
83.140.30.18	A	console.screen9.com
83.140.30.19	A	csp.screen9.com
83.140.30.19	A	csp-ssl.screen9.com
83.140.30.20	A	statsapi.screen9.com
83.140.30.57	A	ns5.screen9.com
83.140.30.57	A	ns4.picsearch.com
83.140.30.57	A	ns400.screen9.com
83.140.30.242	A	www7.picsearch.com
83.140.31.0	PTR	83.140.31.0.biz.sta.port80.se
83.140.31.2	PTR	83.140.31.2.biz.sta.port80.se
83.140.31.41	A+PTR	83.140.31.41.biz.sta.port80.se
83.140.31.41	A	mail.beintelligent.com
83.140.31.43	PTR	83.140.31.43.biz.sta.port80.se
83.140.31.43	A	beintelligent.com
83.140.31.48	A	nmp.toshiba-components.com
83.140.31.52	A	ametsumi.com
83.140.31.52	A	www.ametsumi.com
83.140.31.71	A	83.140.31.71.dyn.rp80.se
83.140.31.104	PTR	83.140.31.104.biz.sta.port80.se
83.140.31.104	A	83.140.31.104.dyn.rp80.se
83.140.31.129	A+PTR	gw-a-v.stejtech.net
83.140.31.130	A	gw-a-1.stejtech.net
83.140.31.138	PTR	stat1.stejtech.net
83.140.31.138	A	puppet.stejtech.net
83.140.31.139	A	83.140.31.139.dyn.rp80.se
83.140.31.140	A+PTR	exch1.staysecure.se
83.140.31.140	A	mail.staysecure.se
83.140.31.140	A	cf1.stejtech.net
83.140.31.143	A	lb2.stejtech.net
83.140.31.145	PTR	smtp-bmx-c1-ip4-h1.stejtech.net
83.140.31.145	A	smtp2.harasbyggvaror.se
83.140.31.145	A	mx.aix.se
83.140.31.148	A+PTR	web2.stejtech.net
83.140.31.148	A	controlpanel.stejtech.net
83.140.31.148	A	webmail.stejtech.net
83.140.31.160	A	smtp-out1.stejtech.net
83.140.31.161	A	smtp13.stejtech.net
83.140.31.162	A	83.140.31.162.dyn.rp80.se
83.140.31.162	A	smtp6.stejtech.net
83.140.31.164	A	smtp9.stejtech.net
83.140.31.165	A	smtp-ext.stejtech.net
83.140.31.165	A	smtp10.stejtech.net
83.140.31.173	A	dev-smtp-in-lab.stejlab.net
83.140.31.176	PTR	dev-smtp-auth.stejtech.net
83.140.31.177	PTR	ds-3.hy-sto.se.stejtech.net
83.140.31.177	A	lab2.stejtech.net
83.140.31.179	A	domainscan.stejtech.net
83.140.31.180	A+PTR	ds-5.hy-sto.se.stejtech.net
83.140.31.182	A+PTR	ns1.stejtech.net
83.140.31.182	A	ns1.staysecure.se
83.140.31.182	A	ns1.staysecuregroup.com
83.140.31.184	A	smtp11.stejtech.net
83.140.31.185	A+PTR	smtp12.stejtech.net
83.140.31.185	A	db-int2.stejtech.net
83.140.31.191	PTR	83.140.31.191.biz.sta.port80.se
83.140.31.195	PTR	83.140.31.195.biz.sta.port80.se
83.140.31.228	A+PTR	83.140.31.228.biz.sta.port80.se
83.140.31.228	A	webster.effectivestudios.com
83.140.31.229	A	webster2.effectivestudios.com