Robtex

Up: 31.207.64.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 31.207.96.0/20
Down right: 31.207.112.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
31.207.96.2	PTR	host-31-207-96-2.swnet.it
31.207.96.2	A	swnet.it
31.207.102.182	PTR	host-31-207-102-182.swnet.it
31.207.102.182	A	mxtrn.com
31.207.105.10	PTR	host-31-207-105-10.swnet.it
31.207.108.167	PTR	host-31-207-108-167.swnet.it
31.207.110.10	PTR	host-31-207-110-10.swnet.it
31.207.111.61	PTR	host-31-207-111-61.swnet.it
31.207.111.61	A	home.php.dnsseed.bitcoin.dashjr.org
31.207.111.255	PTR	host-31-207-111-255.swnet.it
31.207.112.94	PTR	host-31-207-112-94.swnet.it
31.207.112.125	PTR	host-31-207-112-125.swnet.it
31.207.112.132	PTR	host-31-207-112-132.swnet.it
31.207.112.244	PTR	host-31-207-112-244.swnet.it
31.207.113.25	A+PTR	host-31-207-113-25.swnet.it
31.207.113.25	A	mail.gremes.it
31.207.113.59	A+PTR	remote.stimpflkg.it
31.207.113.73	A+PTR	host-31-207-113-73.swnet.it
31.207.113.74	A	mudla.net
31.207.113.79	PTR	bk.pavidea.com
31.207.113.79	A	mail.pavidea.it
31.207.113.81	A	mail.frena-partner.com
31.207.113.97	A+PTR	host-31-207-113-97.swnet.it
31.207.113.97	A	mx.express-line.it
31.207.113.105	A	mail.vitalisdrjoseph.com
31.207.113.120	PTR	host-31-207-113-120.swnet.it
31.207.113.120	A	mail.s-brugger.com
31.207.113.129	A+PTR	host-31-207-113-129.swnet.it
31.207.113.145	A+PTR	mail.ausserhofer.info
31.207.113.170	A	mail.eos-jugend.it
31.207.113.178	A+PTR	smtp.gruber-demartin.it
31.207.113.178	A	mail.gruber-demartin.it
31.207.113.187	A+PTR	mail.vollleben.it
31.207.113.192	A+PTR	host-31-207-113-192.swnet.it
31.207.113.192	A	ns3.dipag.com
31.207.113.202	A+PTR	mx.code4.it
31.207.113.202	A	www.maschinenring.it
31.207.113.225	PTR	host-31-207-113-225.swnet.it.113.207.31.in-addr.arpa
31.207.113.239	A	host-31-207-113-239.swnet.it
31.207.113.246	A	host-31-207-113-246.swnet.it
31.207.114.32	PTR	host-31-207-114-32.swnet.it
31.207.114.32	A	mail.oberleiter-trading.it
31.207.114.32	A	mail.oberleiter-kommerz.it
31.207.114.37	A	mail.gassermarkus.it
31.207.114.43	A+PTR	host-31-207-114-43.swnet.it
31.207.114.124	A+PTR	mailf.badmoos.it
31.207.114.150	A	schlaumra.com
31.207.114.214	A	smtp.debettin.it
31.207.114.242	A+PTR	host-31-207-114-242.swnet.it
31.207.115.33	PTR	host-31-207-115-33.swnet.it
31.207.120.2	A+PTR	dns1.swnet.it
31.207.120.5	A	mail.swnet.it
31.207.120.10	A	mail.swnet.it
31.207.120.12	A	speedy.swnet.it
31.207.120.34	A+PTR	dns2.swnet.it
31.207.121.3	A+PTR	mx.knollseisen.it
31.207.121.4	A	mx.knollseisen.com
31.207.121.5	A+PTR	mail.surftech.it
31.207.121.10	A	ns2-bk.systems.bz
31.207.121.43	A+PTR	mail.groheshop.com
31.207.121.43	A	mail.grohep.com
31.207.121.43	A	mail.groheonlineshop.com
31.207.121.46	A	mywerkzeug.com
31.207.121.67	A	mail.icpm.ag
31.207.121.82	A+PTR	mail.kuenig.it
31.207.121.91	A+PTR	mail.graber.it
31.207.121.114	A+PTR	mail.leitnermail.com
31.207.121.114	A	mail2.leitnermail.com
31.207.121.114	A	mail1.leitnermail.com
31.207.121.132	A+PTR	mail.kronplatz.com
31.207.121.150	A+PTR	mail.ts-energygroup.com
31.207.121.150	A	mail.gts-syngas.com
31.207.121.150	A	mail.gruppo-ts.com
31.207.121.170	A+PTR	mail.tecnospot.it
31.207.121.170	A	mail.ge-tec.at
31.207.121.170	A	mail.tecnospotsolar.com
31.207.121.171	PTR	shop.tecnospot.eu
31.207.121.171	A	www.tecnospot.it
31.207.121.194	A	portal.stadtwerke.it
31.207.121.196	A	mx1.acodat.com
31.207.121.196	A	mx1.acodat.it
31.207.121.196	A	mail.acodat.com
31.207.121.212	PTR	smtp.stadtwerke.it
31.207.121.245	A	mail1.elektrisola.it
31.207.122.10	A	mail.studiog.it
31.207.122.18	A	s01.schoenhuber.com
31.207.122.18	A	mail.schoenhuber.com
31.207.122.20	A	schoenhuber.com
31.207.122.42	A	mail.s-brugger.com
31.207.122.99	A+PTR	mail.intercable.it
31.207.122.115	A	mail.jai.bz
31.207.122.115	A	webmail.eos-jugend.it
31.207.122.115	A	webmail.eos-genossenschaft.bz
31.207.122.155	A+PTR	mail.zirkonzahn.com
31.207.122.171	A	mail.suedtirol-fenster.com
31.207.122.180	A	mail.gruenland.it
31.207.122.203	A	mail.blucon.net
31.207.122.206	A	blu-tec.net
31.207.122.206	A	blucon.net
31.207.122.206	A	www.blucon.net
31.207.122.227	A	bbzbk.info
31.207.122.228	A	mail.bbzbk.info
31.207.122.234	A	webmail.bbzbk.info
31.207.123.5	A	www.taferner.it
31.207.123.17	A	office.inetcons.it
31.207.123.67	A+PTR	mailrelay.niederkofler.it
31.207.123.82	A	mail.micura.it
31.207.123.106	PTR	d96092.o.ess.barracudanetworks.com
31.207.123.106	A	mx30.s-anna.com
31.207.123.106	A	mx30.patzenfeld.com
31.207.123.179	A	mail.asr.it
31.207.127.161	PTR	host-31-207-127-161.swnet.it