Robtex

Up: 37.77.160.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 37.77.160.0/23
Down right: 37.77.162.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
37.77.160.6	A+PTR	ip-6-160.sn2.activenetwork.it
37.77.162.13	A+PTR	ip-13-162.sn2.activenetwork.it
37.77.162.13	A	mail.strappini.com
37.77.162.13	A	mail.strappini.it
37.77.162.32	A+PTR	ip-32-162.sn2.activenetwork.it
37.77.162.68	A+PTR	ip-68-162.sn2.activenetwork.it
37.77.162.69	A	mail.1000servizi.org
37.77.162.74	A+PTR	ip-74-162.sn2.activenetwork.it
37.77.162.93	PTR	ip-93-162.sn2.activenetwork.it
37.77.162.131	PTR	ip-131-162.sn2.activenetwork.it
37.77.162.131	A	mail2.orobicapesca.it
37.77.162.133	A+PTR	ip-133-162.sn2.activenetwork.it
37.77.162.133	A	mx2.irmaimmobiliarespa.com
37.77.162.133	A	mx2.ilcastelloborghese.com
37.77.162.138	PTR	ip-138-162.sn2.activenetwork.it
37.77.162.138	A	vmail.annabella.it
37.77.162.146	A+PTR	ip-146-162.sn2.activenetwork.it
37.77.162.154	A	systemika.it
37.77.162.206	A	irvoice.infotrend.it
37.77.162.248	PTR	ip-248-162.sn2.activenetwork.it
37.77.162.248	A	mail.magnith.com
37.77.163.32	A+PTR	mail.studiob2srl.it
37.77.163.178	PTR	ip-178-163.sn2.activenetwork.it
37.77.163.178	A	pasa.canossiani.org
37.77.163.178	A	ns1.canossiani.org
37.77.163.179	PTR	ip-179-163.sn2.activenetwork.it
37.77.163.179	A	pasa1.canossiani.org
37.77.163.179	A	ns2.canossiani.org