Robtex

Up: 181.29.64.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 181.29.96.0/20
Down right: 181.29.112.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
181.29.97.14	PTR	14-97-29-181.fibertel.com.ar
181.29.97.171	A	sheercoin.org
181.29.97.251	PTR	251-97-29-181.fibertel.com.ar
181.29.98.215	PTR	215-98-29-181.fibertel.com.ar
181.29.99.185	PTR	185-99-29-181.fibertel.com.ar
181.29.100.146	PTR	mail.handserv.com
181.29.100.233	PTR	233-100-29-181.fibertel.com.ar
181.29.100.233	A	mail3.fianzasycredito.com
181.29.100.254	A	mail2.crysol.net
181.29.101.13	PTR	13-101-29-181.fibertel.com.ar
181.29.101.87	PTR	87-101-29-181.fibertel.com.ar
181.29.101.105	PTR	105-101-29-181.fibertel.com.ar
181.29.101.183	PTR	183-101-29-181.fibertel.com.ar
181.29.102.10	A	mx1.silicon-aid.com
181.29.102.105	PTR	pas03.pasargentina.com
181.29.103.25	PTR	25-103-29-181.fibertel.com.ar
181.29.103.156	PTR	156-103-29-181.fibertel.com.ar
181.29.103.238	PTR	238-103-29-181.fibertel.com.ar
181.29.103.238	A	appeeal.com
181.29.104.166	PTR	166-104-29-181.fibertel.com.ar
181.29.104.214	PTR	214-104-29-181.fibertel.com.ar
181.29.105.75	A	mx2.accicom.com.ar
181.29.105.98	PTR	98-105-29-181.fibertel.com.ar
181.29.105.103	PTR	103-105-29-181.fibertel.com.ar
181.29.105.143	A	mail.suiza.org.ar
181.29.105.143	A	mx1.suiza.org.ar
181.29.106.37	PTR	37-106-29-181.fibertel.com.ar
181.29.106.73	A	correo.tarsuscapital.com
181.29.106.87	PTR	87-106-29-181.fibertel.com.ar
181.29.106.111	PTR	111-106-29-181.fibertel.com.ar
181.29.106.162	A	tabaqueriainglesa.com.ar
181.29.106.188	PTR	188-106-29-181.fibertel.com.ar
181.29.107.59	A	ns1.hs-it.com.ar
181.29.107.67	A	mx4.kixlog.com
181.29.107.106	PTR	106-107-29-181.fibertel.com.ar
181.29.108.118	PTR	118-108-29-181.fibertel.com.ar
181.29.108.149	A	fcomic.com.ar
181.29.108.149	A	fchurca.com.ar
181.29.108.237	PTR	237-108-29-181.fibertel.com.ar
181.29.109.100	PTR	100-109-29-181.fibertel.com.ar
181.29.109.100	A	sbicachu.com
181.29.109.216	A	mail1.rpjabogados.com
181.29.109.224	PTR	224-109-29-181.fibertel.com.ar
181.29.109.224	A	mx2.credivico.com.ar
181.29.110.18	A	phrental.com.ar
181.29.110.18	A	mail.phrental.com.ar
181.29.111.4	PTR	4-111-29-181.fibertel.com.ar
181.29.111.4	A	headquarters.dinmax.com
181.29.111.9	A+PTR	exchange.estudiotallone.com.ar
181.29.111.233	A+PTR	mail3.crosstrade.com.ar
181.29.111.236	PTR	236-111-29-181.fibertel.com.ar
181.29.111.236	A	dns3.bqs.com.ar
181.29.112.121	PTR	121-112-29-181.fibertel.com.ar
181.29.112.214	PTR	214-112-29-181.fibertel.com.ar
181.29.112.247	A	mail1.uatre.org.ar
181.29.113.105	PTR	105-113-29-181.fibertel.com.ar
181.29.113.150	PTR	150-113-29-181.fibertel.com.ar
181.29.113.219	PTR	219-113-29-181.fibertel.com.ar
181.29.114.67	PTR	67-114-29-181.fibertel.com.ar
181.29.114.180	A	mailb.rohrcollections.com
181.29.115.71	A	smtp.iezzivarone.com
181.29.115.94	PTR	94-115-29-181.fibertel.com.ar
181.29.115.94	A	mail1.rpjabogados.com
181.29.115.94	A	rpjabogados.com
181.29.115.138	PTR	138-115-29-181.fibertel.com.ar
181.29.116.118	PTR	118-116-29-181.fibertel.com.ar
181.29.116.118	A	eumdemfexcom.com
181.29.116.131	PTR	131-116-29-181.fibertel.com.ar
181.29.116.204	PTR	204-116-29-181.fibertel.com.ar
181.29.117.50	A	alianzadecapitales.com.ar
181.29.117.68	PTR	68-117-29-181.fibertel.com.ar
181.29.117.233	PTR	233-117-29-181.fibertel.com.ar
181.29.118.18	A	mx1.petrolerapatagonia.com
181.29.118.144	PTR	144-118-29-181.fibertel.com.ar
181.29.118.147	PTR	147-118-29-181.fibertel.com.ar
181.29.118.148	PTR	148-118-29-181.fibertel.com.ar
181.29.118.243	PTR	243-118-29-181.fibertel.com.ar
181.29.119.9	A	dollar.com.ar
181.29.119.42	PTR	42-119-29-181.fibertel.com.ar
181.29.119.81	PTR	81-119-29-181.fibertel.com.ar
181.29.120.30	A	mail2.crysol.net
181.29.121.147	PTR	147-121-29-181.fibertel.com.ar
181.29.121.153	PTR	153-121-29-181.fibertel.com.ar
181.29.122.81	A	m3arg.com
181.29.122.81	A	m3argentina.com
181.29.123.127	PTR	127-123-29-181.fibertel.com.ar
181.29.123.127	A	gestornube.com
181.29.123.190	PTR	190-123-29-181.fibertel.com.ar
181.29.124.14	PTR	14-124-29-181.fibertel.com.ar
181.29.124.124	PTR	124-124-29-181.fibertel.com.ar
181.29.124.190	A+PTR	mail2.petrabax.com.ar
181.29.124.220	A	sissa.dyndns.info
181.29.124.224	A+PTR	fibertela1s.hrsantamarina.org.ar
181.29.124.224	A	mx-1.hrsantamarina.org.ar
181.29.124.224	A	hrsantamarina.org.ar
181.29.125.2	A	s3.tmsys.com.ar
181.29.125.2	A	dns2.tmsys.com.ar
181.29.125.24	PTR	24-125-29-181.fibertel.com.ar
181.29.125.24	A	virtualpress.com.ar
181.29.125.83	A	ns-1.hrsantamarina.org.ar
181.29.125.146	PTR	146-125-29-181.fibertel.com.ar
181.29.125.185	PTR	185-125-29-181.fibertel.com.ar
181.29.126.17	A+PTR	ntserver2.berettagodoy.com
181.29.126.40	PTR	40-126-29-181.fibertel.com.ar
181.29.126.74	A	mx-2.hrsantamarina.org.ar