Robtex

Up: 31.4.0.0/15
Can't show all results, try to descend to a more specific CIDR
Down left: 31.5.0.0/17
Down right: 31.5.128.0/17
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
31.5.4.2	PTR	d1f050402.access.telenet.be
31.5.6.12	A	swissfaer.com
31.5.32.147	PTR	d1f052093.access.telenet.be
31.5.35.43	A	mail.vpnwp.co
31.5.35.43	A	mail.wpdot.info
31.5.35.43	A	ns1.vpnwp.com
31.5.37.77	A	ns.it-partner.ro
31.5.42.245	A	daniel-lct.ro
31.5.43.117	A	ns6.ns6.ns6.goloduha.info
31.5.43.117	A	ns5.ns6.ns2.goloduha.info
31.5.43.117	A	ns3.ns1.ns3.goloduha.info
31.5.45.160	A	mail.dinamica.ro
31.5.45.160	A	www.dlgot.com
31.5.47.64	A+PTR	d1f052f40.access.telenet.be
31.5.72.248	PTR	d1f0548f8.access.telenet.be
31.5.80.136	A	smtp.shopsuceava.com
31.5.80.136	A	shopsuceava.com
31.5.80.136	A	www.shopsuceava.com
31.5.84.20	PTR	d1f055414.access.telenet.be
31.5.102.143	A	dinamica.ro
31.5.108.120	A+PTR	d1f056c78.access.telenet.be
31.5.117.118	PTR	d1f057576.access.telenet.be
31.5.118.85	A	hyperblue.ddns.net
31.5.138.123	A	mail.sanitairshop.nl
31.5.141.33	PTR	d1f058d21.access.telenet.be
31.5.145.77	PTR	d1f05914d.access.telenet.be
31.5.155.11	A	xn--80ab1bdj1g.xn--p1ai
31.5.167.149	A	doqknedornadayqwey.com
31.5.167.149	A	chaseinvalidtoken.com
31.5.167.149	A	www.schwabsoffice.com
31.5.167.167	PTR	d1f05a7a7.access.telenet.be
31.5.169.192	A	rubenrigole.be
31.5.175.123	A	fishgaming.tk
31.5.186.181	A	xwy.ro
31.5.186.181	A	raspund.ro
31.5.211.52	A	mail.cecomand.ro
31.5.212.132	A	www.newssmart.info
31.5.212.132	A	ns2.newcookeryrecipes.info
31.5.212.132	A	ns1.newcookeryrecipes.info
31.5.223.189	PTR	d1f05dfbd.access.telenet.be
31.5.227.248	A	lucihex.com
31.5.228.209	A	akamai-consulting.nl