Robtex

Up: 82.201.192.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 82.201.192.0/25
Down right: 82.201.192.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
82.201.192.64	PTR	mail.esih.com.eg
82.201.192.65	PTR	mail.esih.com.eg
82.201.192.66	PTR	mail.esih.com.eg
82.201.192.67	PTR	mail.esih.com.eg
82.201.192.68	PTR	mail.esih.com.eg
82.201.192.69	PTR	mail.esih.com.eg
82.201.192.114	PTR	host-82-201-192-114.static.link.net
82.201.192.114	A	mail.alkhomassia.com
82.201.192.114	A	mail.herfy-eg.com
82.201.192.180	PTR	host-82-201-192-180.static.link.net