Robtex

Up: 80.243.96.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 80.243.96.0/21
Down right: 80.243.104.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
80.243.96.42	A	42-96-243-80.cust.centrio.cz
80.243.96.66	A	66-96-243-80.cust.centrio.cz
80.243.96.231	A	michalkoran.cz
80.243.97.176	PTR	176-97-243-80.cust.centrio.cz
80.243.97.211	A	211-97-243-80.cust.centrio.cz
80.243.97.252	A	biz-eu.net
80.243.98.71	A	71-98-243-80.cust.centrio.cz
80.243.99.8	A	8-99-243-80.cust.centrio.cz
80.243.99.147	A	147-99-243-80.cust.centrio.cz
80.243.99.183	A	183-99-243-80.cust.centrio.cz
80.243.100.85	A	85-100-243-80.cust.centrio.cz
80.243.100.93	A	93-100-243-80.cust.centrio.cz
80.243.100.93	A	mail.banbook.org
80.243.100.96	PTR	96-100-243-80.cust.centrio.cz
80.243.100.96	A	zealot.banbook.org
80.243.100.102	A	mail.banbook.org
80.243.100.102	A	zealot.banbook.org
80.243.100.102	A	102-100-243-80.cust.centrio.cz
80.243.100.130	A+PTR	130-100-243-80.cust.centrio.cz
80.243.100.134	A	c.income.cz
80.243.100.137	A	137-100-243-80.cust.centrio.cz
80.243.100.139	A	139-100-243-80.cust.centrio.cz
80.243.100.171	A	171-100-243-80.cust.centrio.cz
80.243.101.34	A+PTR	34-101-243-80.cust.centrio.cz
80.243.101.44	A	mandmit.com
80.243.101.44	A	marypop.cz
80.243.101.114	A	data.pospisilovi.org
80.243.101.169	A	169-101-243-80.cust.centrio.cz
80.243.101.205	A	205-101-243-80.cust.centrio.cz
80.243.101.218	A	218-101-243-80.cust.centrio.cz
80.243.101.224	A+PTR	224-101-243-80.cust.centrio.cz
80.243.101.249	A	249-101-243-80.cust.centrio.cz
80.243.102.71	A	71-102-243-80.cust.centrio.cz
80.243.102.83	A	harumakika.com
80.243.102.131	PTR	131-102-243-80.cust.centrio.cz
80.243.102.131	A	lingros.cz
80.243.102.131	A	odezva.cz
80.243.102.155	A	155-102-243-80.cust.centrio.cz
80.243.102.165	A	165-102-243-80.cust.centrio.cz
80.243.102.178	PTR	178-102-243-80.cust.centrio.cz
80.243.103.16	PTR	16-103-243-80.cust.centrio.cz
80.243.103.16	A	mail.stratosphere.cz
80.243.103.31	A	faflik.com
80.243.103.31	A	stratosphere.cz
80.243.103.61	A	mail.stratosphere.cz
80.243.103.61	A	faflik.com
80.243.103.72	A	72-103-243-80.cust.centrio.cz
80.243.103.103	A	abonyi.cz
80.243.103.110	A	kynclp.com
80.243.103.131	A+PTR	131-103-243-80.cust.centrio.cz
80.243.103.146	PTR	146-103-243-80.cust.centrio.cz
80.243.104.71	A+PTR	71-104-243-80.cust.centrio.cz
80.243.104.71	A	themelogger.com
80.243.104.170	A	houska.tk
80.243.104.182	A+PTR	182-104-243-80.cust.centrio.cz
80.243.104.182	A	shamot.cz
80.243.104.182	A	shamot.publicvm.com
80.243.104.183	A	shamot.cz
80.243.104.183	A	shamot.publicvm.com
80.243.104.215	A+PTR	215-104-243-80.cust.centrio.cz
80.243.105.25	A	25-105-243-80.cust.centrio.cz
80.243.105.49	PTR	49-105-243-80.cust.centrio.cz
80.243.105.235	A	235-105-243-80.cust.centrio.cz
80.243.106.26	A	zotax.net
80.243.106.140	A	photokate.cz
80.243.106.140	A	photokate.com
80.243.106.140	A	mail.photokate.com
80.243.106.162	PTR	162-106-243-80.cust.centrio.cz
80.243.106.229	A	229-106-243-80.cust.centrio.cz
80.243.107.86	A	86-107-243-80.cust.centrio.cz
80.243.107.168	A	168-107-243-80.cust.centrio.cz
80.243.107.210	PTR	210-107-243-80.cust.centrio.cz
80.243.108.163	A	163-108-243-80.cust.centrio.cz
80.243.108.200	A	200-108-243-80.cust.centrio.cz
80.243.108.232	A	232-108-243-80.cust.centrio.cz
80.243.108.250	A	250-108-243-80.cust.centrio.cz
80.243.109.101	A	101-109-243-80.cust.centrio.cz
80.243.109.153	A	rk2010.cz
80.243.109.153	A	mail.rk2010.cz
80.243.110.5	A	mail.awe.cz
80.243.110.5	A	*.nedbal.net
80.243.110.5	A	home.awe.cz
80.243.110.53	A	pasky.or.cz
80.243.110.53	A	log.or.cz
80.243.110.53	A	ailao.eu
80.243.110.97	PTR	97-110-243-80.cust.centrio.cz
80.243.110.109	A	labrys.biz
80.243.110.197	A	dimetron.com
80.243.110.201	A	forch.cz
80.243.110.201	A	www.forch.cz
80.243.110.201	A	440hz.cz
80.243.110.249	A	zviretnik.eu
80.243.111.1	A	home.bacil.net
80.243.111.37	A	nk47.cz
80.243.111.37	A	www.nk47.cz
80.243.111.41	A	salonjaja.cz
80.243.111.41	A	overkad.com
80.243.111.65	PTR	65-111-243-80.cust.centrio.cz
80.243.111.65	A	tronicsoft.cz
80.243.111.65	A	alexisbb.cz
80.243.111.105	A	rostcar.com
80.243.111.105	A	kalanet.cz
80.243.111.105	A	viptrener.cz
80.243.111.121	A	barcosa.cz
80.243.111.133	A	mail.cool-it-one.cz
80.243.111.133	A	mail.itprojekt.eu
80.243.111.152	A	152-111-243-80.cust.centrio.cz
80.243.111.153	A	brzyvozy.cz
80.243.111.153	A	letovcechach.cz
80.243.111.153	A	svastal.cz
80.243.111.165	A	ns1.tomasvojtech.co.uk
80.243.111.165	A	tomasvojtech.co.uk
80.243.111.165	A	www.comserv.cz
80.243.111.209	A	tomcom.cz
80.243.111.229	A	ambag.it
80.243.111.233	A	vpn.gdsoftware.cz
80.243.111.233	A	allworld.cz
80.243.111.233	A	smtp.gdsoftware.cz
80.243.111.249	A	bolicek.cz
80.243.111.249	A	m.bolicek.cz
80.243.111.249	A	mail.bolicek.cz