Robtex

Up: 31.129.64.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 31.129.80.0/21
Down right: 31.129.88.0/21

IP	Type	Hostname
31.129.80.3	PTR	ip-31-80-3.dnepro.net
31.129.80.65	PTR	ip-31-80-65.dnepro.net
31.129.82.82	PTR	ip-31-82-82.dnepro.net
31.129.82.113	PTR	ip-31-82-113.dnepro.net
31.129.82.163	PTR	ip-31-82-163.dnepro.net
31.129.83.199	A	ip-31-83-199.dnepro.net
31.129.86.19	PTR	ip-31-86-19.dnepro.net
31.129.86.98	PTR	ip-31-86-98.dnepro.net
31.129.86.225	PTR	ip-31-86-225.dnepro.net
31.129.88.174	A+PTR	ip-31-88-174.dnepro.net
31.129.88.252	A+PTR	mail.norma.dp.ua
31.129.88.252	A	norma.dp.ua
31.129.89.248	A	ip-31-89-248.dnepro.net
31.129.91.9	PTR	ip-31-91-9.dnepro.net
31.129.91.27	PTR	ip-31-91-27.dnepro.net
31.129.91.27	A	getua.org
31.129.91.52	A	ip-31-91-52.dnepro.net
31.129.91.129	A+PTR	ip-31-91-129.dnepro.net
31.129.91.238	A+PTR	ip-31-91-238.dnepro.net
31.129.93.42	PTR	ip-31-93-42.dnepro.net
31.129.94.180	A+PTR	ip-31-94-180.dnepro.net
31.129.94.180	A	ns1.overflowwho.ru
31.129.94.180	A	ns3.loer555.org
31.129.95.173	A+PTR	ip-31-95-173.dnepro.net
31.129.95.173	A	cc.zartrusrokl.at
31.129.95.173	A	ns3.userdns.org
31.129.95.255	A+PTR	ip-31-95-255.dnepro.net