Robtex

Up: 81.28.128.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 81.28.128.0/21
Down right: 81.28.136.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
81.28.128.1	A	host1-128-28-81.hiway.at
81.28.128.34	A+PTR	dns.hiway.at
81.28.128.35	A+PTR	hades.hiway.at
81.28.128.36	A	mailserver.hiway.at
81.28.128.36	A	mailserver2.bruckmur.co.at
81.28.128.50	A	host50-128-28-81.hiway.at
81.28.128.52	A	dns2.hiway.at
81.28.128.55	A	kerberos.hiway.at
81.28.128.76	A	host76-128-28-81.hiway.at
81.28.128.89	A	host89-128-28-81.hiway.at
81.28.128.171	A	host171-128-28-81.hiway.at
81.28.128.250	A	host250-128-28-81.hiway.at
81.28.129.1	A	host1-129-28-81.hiway.at
81.28.129.249	A	host249-129-28-81.hiway.at
81.28.129.252	A	host252-129-28-81.hiway.at
81.28.130.128	A+PTR	host128-130-28-81.hiway.at
81.28.130.157	A	host157-130-28-81.hiway.at
81.28.130.161	A+PTR	host161-130-28-81.hiway.at
81.28.130.187	A	host187-130-28-81.hiway.at
81.28.130.190	A	host190-130-28-81.hiway.at
81.28.131.49	A+PTR	host49-131-28-81.hiway.at
81.28.131.51	PTR	host51-131-28-81.hiway.at
81.28.131.51	A	horus.ckuweb.net
81.28.131.51	A	ckuweb.net
81.28.131.156	A	host156-131-28-81.hiway.at
81.28.131.161	A	host161-131-28-81.hiway.at
81.28.131.191	A	host191-131-28-81.hiway.at
81.28.131.194	A	host194-131-28-81.hiway.at
81.28.131.220	A	host220-131-28-81.hiway.at
81.28.131.252	A	host252-131-28-81.hiway.at
81.28.132.115	A	host115-132-28-81.hiway.at
81.28.132.212	A	host212-132-28-81.hiway.at
81.28.133.1	PTR	host1-133-28-81.hiway.at
81.28.133.2	PTR	host2-133-28-81.hiway.at
81.28.133.3	PTR	host3-133-28-81.hiway.at
81.28.133.6	A	host6-133-28-81.hiway.at
81.28.133.10	A	host10-133-28-81.hiway.at
81.28.133.12	A	host12-133-28-81.hiway.at
81.28.133.16	A+PTR	host16-133-28-81.hiway.at
81.28.133.22	A	host22-133-28-81.hiway.at
81.28.133.34	A	host34-133-28-81.hiway.at
81.28.133.46	A	host46-133-28-81.hiway.at
81.28.133.48	A+PTR	host48-133-28-81.hiway.at
81.28.133.51	A+PTR	host51-133-28-81.hiway.at
81.28.133.54	A	host54-133-28-81.hiway.at
81.28.133.57	A	host57-133-28-81.hiway.at
81.28.133.76	A	host76-133-28-81.hiway.at
81.28.133.79	A	host79-133-28-81.hiway.at
81.28.133.91	A	host91-133-28-81.hiway.at
81.28.133.92	A	host92-133-28-81.hiway.at
81.28.133.96	A+PTR	host96-133-28-81.hiway.at
81.28.133.97	A+PTR	host97-133-28-81.hiway.at
81.28.133.101	A	host101-133-28-81.hiway.at
81.28.133.103	A	host103-133-28-81.hiway.at
81.28.133.124	A	host124-133-28-81.hiway.at
81.28.133.126	A	host126-133-28-81.hiway.at
81.28.133.134	A	host134-133-28-81.hiway.at
81.28.133.138	A	host138-133-28-81.hiway.at
81.28.133.148	A	host148-133-28-81.hiway.at
81.28.133.156	A	host156-133-28-81.hiway.at
81.28.133.167	A	host167-133-28-81.hiway.at
81.28.133.174	A	host174-133-28-81.hiway.at
81.28.133.176	A	host176-133-28-81.hiway.at
81.28.133.179	A+PTR	host179-133-28-81.hiway.at
81.28.133.186	A	host186-133-28-81.hiway.at
81.28.133.200	A	host200-133-28-81.hiway.at
81.28.133.203	A	host203-133-28-81.hiway.at
81.28.133.207	A	host207-133-28-81.hiway.at
81.28.133.209	A	host209-133-28-81.hiway.at
81.28.133.213	A	host213-133-28-81.hiway.at
81.28.133.215	A	host215-133-28-81.hiway.at
81.28.133.216	A	host216-133-28-81.hiway.at
81.28.133.237	A	host237-133-28-81.hiway.at
81.28.133.245	A	host245-133-28-81.hiway.at
81.28.133.250	A	host250-133-28-81.hiway.at
81.28.133.253	A	host253-133-28-81.hiway.at
81.28.133.254	A	host254-133-28-81.hiway.at
81.28.135.57	A	host57-135-28-81.hiway.at
81.28.135.66	A	host66-135-28-81.hiway.at
81.28.135.91	A	brandner.cc
81.28.135.91	A	alex.brandner.cc
81.28.135.91	A	mail.brandner.cc
81.28.135.100	A	host100-135-28-81.hiway.at
81.28.135.122	A	host122-135-28-81.hiway.at
81.28.135.221	A	host221-135-28-81.hiway.at
81.28.136.30	A	host30-136-28-81.hiway.at
81.28.136.138	A	host138-136-28-81.hiway.at
81.28.136.196	A	host196-136-28-81.hiway.at
81.28.136.232	A	host232-136-28-81.hiway.at
81.28.136.245	A	host245-136-28-81.hiway.at
81.28.137.1	A+PTR	host1-137-28-81.hiway.at
81.28.137.32	A	host32-137-28-81.hiway.at
81.28.137.100	A	host100-137-28-81.hiway.at
81.28.137.218	A	host218-137-28-81.hiway.at
81.28.137.253	A	host253-137-28-81.hiway.at
81.28.138.76	A	host76-138-28-81.hiway.at
81.28.138.146	A	host146-138-28-81.hiway.at
81.28.138.163	A+PTR	host163-138-28-81.hiway.at
81.28.138.228	A	host228-138-28-81.hiway.at
81.28.140.45	A	host45-140-28-81.hiway.at
81.28.140.88	A	host88-140-28-81.hiway.at
81.28.140.209	A	host209-140-28-81.hiway.at
81.28.140.220	A	host220-140-28-81.hiway.at
81.28.140.227	A	host227-140-28-81.hiway.at
81.28.141.100	A	mail.haider-co.at
81.28.141.100	A	ganymed.haider-co.at
81.28.141.104	A	email.haider-co.at
81.28.141.114	PTR	host114-141-28-81.hiway.at
81.28.141.114	A	ns1.forstschule.at
81.28.141.126	A	hblf.at
81.28.141.172	A	mail.bruckmur.at
81.28.141.180	A	host180-141-28-81.hiway.at
81.28.141.181	A	host181-141-28-81.hiway.at
81.28.141.182	A	host182-141-28-81.hiway.at
81.28.141.183	A	mail.stadtwerke-kapfenberg.at
81.28.141.234	A	www.stadtwerke-bruck.at
81.28.141.250	A	mx1.kapfenberg.at
81.28.141.251	A	parschlug.at
81.28.141.254	A	host254-141-28-81.hiway.at
81.28.142.3	PTR	host3-142-28-81.hiway.at
81.28.142.3	A	mail.pankl.com
81.28.142.4	PTR	host4-142-28-81.hiway.at
81.28.142.4	A	mail2.pankl.com
81.28.142.7	A	ftp.pankl.com
81.28.142.56	A	host56-142-28-81.hiway.at
81.28.143.1	A+PTR	host1-143-28-81.hiway.at
81.28.143.2	PTR	host2-143-28-81.hiway.at
81.28.143.3	A+PTR	host3-143-28-81.hiway.at
81.28.143.4	A	host4-143-28-81.hiway.at
81.28.143.6	A	host6-143-28-81.hiway.at
81.28.143.16	A	host16-143-28-81.hiway.at
81.28.143.18	A+PTR	host18-143-28-81.hiway.at
81.28.143.21	A	host21-143-28-81.hiway.at
81.28.143.25	A	host25-143-28-81.hiway.at
81.28.143.39	A	host39-143-28-81.hiway.at
81.28.143.42	A	host42-143-28-81.hiway.at
81.28.143.49	A+PTR	host49-143-28-81.hiway.at
81.28.143.50	A+PTR	host50-143-28-81.hiway.at
81.28.143.52	A	host52-143-28-81.hiway.at
81.28.143.54	A	host54-143-28-81.hiway.at
81.28.143.72	A	host72-143-28-81.hiway.at
81.28.143.77	A	host77-143-28-81.hiway.at
81.28.143.85	A	host85-143-28-81.hiway.at
81.28.143.90	A	host90-143-28-81.hiway.at
81.28.143.95	A	host95-143-28-81.hiway.at
81.28.143.99	A	host99-143-28-81.hiway.at
81.28.143.101	A	host101-143-28-81.hiway.at
81.28.143.102	A	host102-143-28-81.hiway.at
81.28.143.106	A	host106-143-28-81.hiway.at
81.28.143.113	A	host113-143-28-81.hiway.at
81.28.143.119	A	host119-143-28-81.hiway.at
81.28.143.124	A	host124-143-28-81.hiway.at
81.28.143.131	A	host131-143-28-81.hiway.at
81.28.143.132	A	host132-143-28-81.hiway.at
81.28.143.136	A	host136-143-28-81.hiway.at
81.28.143.139	A	host139-143-28-81.hiway.at
81.28.143.145	A	host145-143-28-81.hiway.at
81.28.143.146	A	host146-143-28-81.hiway.at
81.28.143.151	A	host151-143-28-81.hiway.at
81.28.143.179	A+PTR	host179-143-28-81.hiway.at
81.28.143.190	A	host190-143-28-81.hiway.at
81.28.143.195	A	host195-143-28-81.hiway.at
81.28.143.197	A	host197-143-28-81.hiway.at
81.28.143.207	A	kmpr.at
81.28.143.207	A	host207-143-28-81.hiway.at
81.28.143.210	A	host210-143-28-81.hiway.at
81.28.143.212	A	host212-143-28-81.hiway.at
81.28.143.222	A	host222-143-28-81.hiway.at
81.28.143.225	A	host225-143-28-81.hiway.at
81.28.143.230	A	host230-143-28-81.hiway.at
81.28.143.234	A	host234-143-28-81.hiway.at
81.28.143.241	A	host241-143-28-81.hiway.at
81.28.143.242	A	host242-143-28-81.hiway.at
81.28.143.248	A	host248-143-28-81.hiway.at
81.28.143.253	A	host253-143-28-81.hiway.at