Robtex

Up: 185.170.136.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 185.170.136.0/23
Down right: 185.170.138.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
185.170.136.2	PTR	185.170.136.2.net.springo.it
185.170.136.2	A	speedtest1.springo.it
185.170.136.6	A	ns3.net.springo.it
185.170.136.7	A	ns4.net.springo.it
185.170.136.8	PTR	relay2.smtp.springo.it
185.170.136.8	A	mx1.cloud.springo.it
185.170.136.8	A	smtp2.ibuonimotivi.it
185.170.136.9	PTR	185.170.136.9.net.springo.it
185.170.136.9	A	mx2.cloud.springo.it
185.170.136.14	PTR	185.170.136.14.net.springo.it
185.170.136.14	A	mx1.webingenerale.com
185.170.136.15	PTR	185.170.136.15.net.springo.it
185.170.136.15	A	falegnameriamenardi.it
185.170.136.15	A	riservaforracellina.it
185.170.136.20	PTR	185.170.136.20.net.springo.it
185.170.136.20	A	scoppiospettacoli.it
185.170.136.21	PTR	185.170.136.21.net.springo.it
185.170.136.21	A	pizzacasaweb.it
185.170.136.21	A	www.pizzacasaweb.it
185.170.136.23	PTR	185.170.136.23.net.springo.it
185.170.136.24	PTR	185.170.136.24.net.springo.it
185.170.136.24	A	springo.it
185.170.136.24	A	www.meccanostampi.it
185.170.137.2	PTR	185.170.137.2.net.springo.it
185.170.137.38	A	nethserver.cosmacsrl.com
185.170.138.26	A+PTR	mail.webingenerale.com
185.170.138.26	A	www.webingenerale.com
185.170.138.26	A	agriturismofilippon.it
185.170.138.27	A	agriturismofilippon.it