Robtex

Up: 82.207.20.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 82.207.21.0/25
Down right: 82.207.21.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
82.207.21.2	A+PTR	2-21-207-82.ip.ukrtel.net
82.207.21.44	A+PTR	44-21-207-82.ip.ukrtel.net
82.207.21.50	A	50-21-207-82.ip.ukrtel.net
82.207.21.67	PTR	67-21-207-82.ip.ukrtel.net
82.207.21.67	A	mail2.tec.cn.ua
82.207.21.82	A	82-21-207-82.ip.ukrtel.net
82.207.21.102	PTR	mail.drova.net.ua
82.207.21.114	A+PTR	114-21-207-82.ip.ukrtel.net
82.207.21.114	A	relay1.panorama-tour.kiev.ua
82.207.21.118	PTR	mail.1k.com.ua
82.207.21.136	PTR	model.poltava.ua
82.207.21.136	A	mail.model.poltava.ua
82.207.21.138	A	138-21-207-82.ip.ukrtel.net
82.207.21.141	A+PTR	141-21-207-82.ip.ukrtel.net
82.207.21.162	PTR	162-21-207-82.ip.ukrtel.net
82.207.21.162	A	ns1.donauto.net.ua
82.207.21.177	A+PTR	177-21-207-82.ip.ukrtel.net
82.207.21.201	A+PTR	mail1.talamus.com.ua
82.207.21.232	PTR	kors.net.ua
82.207.21.232	A	mail.lyst.tk
82.207.21.232	A	ns.kopn.tk
82.207.21.250	A+PTR	250-21-207-82.ip.ukrtel.net