Robtex

Up: 185.80.16.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 185.80.16.0/23
Down right: 185.80.18.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
185.80.16.27	A	as201246.net
185.80.16.30	A+PTR	ns.tel4b.com
185.80.16.30	A	tel4b.com
185.80.16.30	A	mail-fr.securemail.pro.tel4b.com
185.80.16.81	A+PTR	ns1.as201246.net
185.80.16.81	A	ns1.tel4b.com
185.80.16.82	A+PTR	ns2.as201246.net
185.80.16.82	A	ns2.tel4b.com
185.80.16.93	A+PTR	smtp1.avm-services.com
185.80.16.181	A	faxbis.com
185.80.16.181	A	faxbis2.com
185.80.16.181	A	www.smsbis.com
185.80.16.193	A+PTR	mta01.avmso.com
185.80.16.193	A	mx.avmso.com
185.80.16.193	A	avmso.com
185.80.17.30	PTR	30.17.80.185.avm-services.com
185.80.17.30	A	tel4btest.com
185.80.17.54	PTR	54.17.80.185.avm-services.com
185.80.17.54	A	dcmailing.com
185.80.17.56	A+PTR	ns3.as201246.net
185.80.17.56	A	ns3.tel4b.com
185.80.19.4	PTR	4.19.80.185.avm-informatique.com
185.80.19.234	PTR	mail.louzaouen.fr