Robtex

Up: 31.204.80.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 31.204.80.0/22
Down right: 31.204.84.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
31.204.80.34	A	clean.immonot.com
31.204.80.36	A	webimmonot.proximit.fr
31.204.80.36	A	fywebimmonot.proximit.fr
31.204.80.37	A	mail.immonot.com
31.204.80.66	A	mail.ficofi.com
31.204.80.131	A	apps.tourisme-alsace.info
31.204.80.131	A	ctal-web-01.proximit.fr
31.204.80.132	A+PTR	mail.proximit.fr
31.204.80.132	PTR	mail2.proximit.fr
31.204.80.132	PTR	piis-mail-03.proximit.fr
31.204.80.133	PTR	prit-web-01.proximit.fr
31.204.80.137	A	ctli-web-02.proximit.fr
31.204.80.141	A+PTR	piis-mail-003tmp.proximit.fr
31.204.80.145	A	service-desk.proximit.fr
31.204.80.148	A	piis-mail-04.proximit.fr
31.204.80.149	A	nst.proximit.fr
31.204.80.167	A	versions-dev.proximit.fr
31.204.80.170	A	smtp.proximit.fr
31.204.80.177	A	rencontres-du-numerique.com
31.204.80.177	A	meetprobretagne.com
31.204.80.177	A	meet-pro-bretagne.com
31.204.80.183	PTR	nospam.proximit.fr
31.204.80.185	A+PTR	master.proximit.fr
31.204.81.4	A	mail.stevia-elec.com
31.204.81.4	A	stevia-elec.com
31.204.82.201	A	mail.stevia-elec.com
31.204.82.201	A	stevia-elec.com
31.204.83.6	PTR	rdc-enfoires.proximit.fr
31.204.83.6	A	enfoires.fr
31.204.83.6	A	lesenfoires.com
31.204.83.7	PTR	rdc-web.proximit.fr
31.204.83.8	A	rdc-forum.proximit.fr
31.204.83.10	A+PTR	ns01.proximit.fr
31.204.83.11	A+PTR	ns02.proximit.fr
31.204.84.30	PTR	node0206.r-ddn.com
31.204.84.100	PTR	ns0201.r-ddn.com
31.204.84.102	PTR	nodes.reactivpub.fr
31.204.84.123	PTR	mta0205.rem02.com
31.204.84.129	PTR	mail0201.rbsdl.com
31.204.84.130	PTR	mta0221.erad01.com
31.204.84.181	PTR	dns0201.r-ddn.com
31.204.84.182	PTR	dns0202.r-ddn.com