Robtex

Up: 82.91.192.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 82.91.224.0/20
Down right: 82.91.240.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
82.91.224.13	A+PTR	host13-224-static.91-82-b.business.telecomitalia.it
82.91.224.74	A+PTR	host74-224-static.91-82-b.business.telecomitalia.it
82.91.228.122	A+PTR	host122-228-static.91-82-b.business.telecomitalia.it
82.91.228.142	A+PTR	host142-228-static.91-82-b.business.telecomitalia.it
82.91.233.87	A+PTR	host87-233-static.91-82-b.business.telecomitalia.it
82.91.234.130	A+PTR	host130-234-static.91-82-b.business.telecomitalia.it
82.91.235.156	A+PTR	host156-235-static.91-82-b.business.telecomitalia.it
82.91.237.49	A+PTR	host49-237-static.91-82-b.business.telecomitalia.it
82.91.237.49	A	mail.reical.it
82.91.237.60	A+PTR	host60-237-static.91-82-b.business.telecomitalia.it
82.91.237.89	A	eos-network.it
82.91.237.107	A	host107-237-static.91-82-b.business.telecomitalia.it
82.91.237.108	A+PTR	host108-237-static.91-82-b.business.telecomitalia.it
82.91.237.215	A+PTR	host215-237-static.91-82-b.business.telecomitalia.it
82.91.238.24	PTR	host24-238-static.91-82-b.business.telecomitalia.it
82.91.240.93	A+PTR	host93-240-static.91-82-b.business.telecomitalia.it
82.91.246.27	A+PTR	host27-246-static.91-82-b.business.telecomitalia.it
82.91.248.190	PTR	host190-248-static.91-82-b.business.telecomitalia.it
82.91.249.126	PTR	host126-249-static.91-82-b.business.telecomitalia.it
82.91.250.81	A+PTR	host81-250-static.91-82-b.business.telecomitalia.it
82.91.251.2	A+PTR	host2-251-static.91-82-b.business.telecomitalia.it
82.91.251.19	A	mx.bancamaremma.it
82.91.251.19	A	mx.bancadellamaremma.it
82.91.251.19	A	mx1.bccmaremma.com
82.91.251.132	A	vim2.nl
82.91.251.132	A	mail.vim2.nl
82.91.251.132	A	mail.vim20.nl
82.91.252.85	A+PTR	host85-252-static.91-82-b.business.telecomitalia.it
82.91.253.55	PTR	host55-253-static.91-82-b.business.telecomitalia.it
82.91.255.255	PTR	host-82-91-255-255.business.telecomitalia.it