Robtex

Up: 149.255.112.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 149.255.112.0/22
Down right: 149.255.116.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
149.255.112.58	PTR	ip-58.112.255.149.in-addr.arpa
149.255.112.58	A	mx.sz-pb.ru
149.255.112.78	A	mx.ultran.ru
149.255.112.82	PTR	ip-82.112.255.149.in-addr.arpa
149.255.112.82	A	gw.nwcspb.ru
149.255.112.98	PTR	ip-98.112.255.149.in-addr.arpa
149.255.112.98	A	mmmm.servismarket.net
149.255.112.98	A	mail.servismarket.net
149.255.113.50	PTR	mail.skd-union.ru
149.255.113.150	PTR	ip-150.113.255.149.in-addr.arpa
149.255.113.150	A	xn--h1ak5ao.xn--p1ai
149.255.113.150	A	www.xn--h1ak5ao.xn--p1ai
149.255.113.166	A+PTR	mail.scaf-spb.ru
149.255.113.238	PTR	mail.arstel.com
149.255.113.238	A	inter-m.biz
149.255.113.238	A	aiphone.ru
149.255.113.246	A+PTR	mail.spb.ccs-auto.ru
149.255.113.255	PTR	ip-255.113.255.149.in-addr.arpa
149.255.114.46	PTR	ip-46.114.255.149.in-addr.arpa
149.255.114.62	A+PTR	mx3.sald.ru
149.255.114.70	PTR	mail.apl.com.ru
149.255.114.70	A	mail.sysop.ru
149.255.114.70	A	mx.partner-c.spb.ru
149.255.115.102	A	5421969.ru
149.255.115.242	A	mx.victory-logistics.de
149.255.116.60	PTR	ip-60.116.255.149.in-addr.arpa
149.255.116.60	A	xn--80ach7ahcadecpgkj.xn--p1ai
149.255.117.42	A+PTR	mail.piterbell.ru
149.255.117.54	PTR	ip-54.117.255.149.in-addr.arpa
149.255.117.54	A	mail2.rospechat.spb.ru
149.255.117.134	PTR	mail.npc-shtandart.ru
149.255.117.134	A	mail.npcshtandart.ru
149.255.117.190	A	npcshtandart.ru
149.255.117.190	A	ns1.npcshtandart.ru
149.255.118.42	A+PTR	ingservi.ru
149.255.118.59	PTR	gate2-el.nevatt.ru
149.255.118.65	PTR	ip-65.118.255.149.in-addr.arpa
149.255.118.65	A	www.protei.ee
149.255.118.65	A	www.protei-st.ru
149.255.118.67	PTR	mail.protei.ru
149.255.119.82	A	mx2.kurier.su
149.255.119.82	A	cisco3.kurier.su
149.255.119.82	A	ns2.kurier.su
149.255.119.195	A	mail.nwpi.ru
149.255.119.202	A	nwotu.ru
149.255.119.202	A	nwpi.ru
149.255.119.242	A	mail.rustelecom.com