Robtex

Up: 81.31.128.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 81.31.128.0/21
Down right: 81.31.136.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
81.31.128.126	A	atsbgfwbb.backbone.co.at
81.31.128.130	PTR	ns3.backbone.co.at
81.31.128.130	A	exittofun.com
81.31.128.130	A	vitanea.at
81.31.128.131	A	monitor.backbone.co.at
81.31.128.133	A	mail.michaelawoerndl.at
81.31.128.150	A	ns4.backbone.co.at
81.31.128.165	A	loungemobiliar.at
81.31.128.165	A	comventus.eu
81.31.128.165	A	companyline.at
81.31.128.179	PTR	unused-ip.81-31-128-179.backbone.co.at
81.31.129.22	PTR	ser0.atsbgrtr03.halwang.sbg.backbone.co.at
81.31.130.134	A	apothekenrecht.at
81.31.130.170	A	www02.backbone.co.at
81.31.130.171	A	www03.backbone.co.at
81.31.130.175	A	mail.kaefer.co.at
81.31.130.175	A	mail.meteoalarm.eu
81.31.130.175	A	mailwall.backbone.co.at
81.31.130.238	A	7reasons.at
81.31.131.80	PTR	at-publico
81.31.131.106	A	pcs-sbg.co.at
81.31.131.112	PTR	at-abcad
81.31.131.131	A+PTR	srvslt03.salzburgerland.com
81.31.131.138	A	mail.blautex.de
81.31.131.138	A	mail.blautex.at
81.31.131.138	A	mail.blautex.com
81.31.131.229	A	tilo.si
81.31.131.229	A	parkettrenovierung.at
81.31.131.229	A	maedelsstammtisch.at
81.31.131.230	PTR	ispweb.backbone.co.at
81.31.131.232	PTR	mail3.backbone.co.at
81.31.131.240	A+PTR	mailwall2.backbone.co.at
81.31.131.244	A	mailwall3.backbone.co.at
81.31.131.244	A	mailwall.backbone.co.at
81.31.132.2	PTR	ns1.backbone.co.at
81.31.132.2	A	ns2.backbone.co.at
81.31.132.3	A+PTR	ns3.backbone.co.at
81.31.132.74	A	emma-met.org
81.31.132.75	A	meteoalarm.is
81.31.132.82	PTR	mail.ng-software.at
81.31.132.82	A	garant-gruppe.at
81.31.132.82	A	www09.backbone.co.at
81.31.132.86	PTR	meteoalarm.eu
81.31.132.93	PTR	wwwsecure.backbone.co.at
81.31.132.102	PTR	www.lwz-salzburg.org
81.31.132.102	A	alpenwetter.com
81.31.132.102	A	meteorisk.info
81.31.132.106	PTR	mail106.backbone.co.at
81.31.132.110	PTR	dolibarr.backbone.co.at