Robtex

Up: 181.15.80.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 181.15.88.0/22
Down right: 181.15.92.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
181.15.88.122	A+PTR	host122.181-15-88.telecom.net.ar
181.15.88.122	A	www.spceducacion.gob.ar
181.15.88.133	A+PTR	host133.181-15-88.telecom.net.ar
181.15.89.3	A+PTR	mail.ferrocons.com.ar
181.15.89.3	A	webmail.ferrocons.com.ar
181.15.89.187	PTR	ns2.igafranquicias.com
181.15.89.187	A	cheflatinoamerica.org
181.15.89.187	A	mail2.cornwallallotments.com
181.15.89.188	PTR	ns3.igafranquicias.com
181.15.89.188	A	cheflatinoamerica.org
181.15.89.188	A	mail2.cornwallallotments.com
181.15.90.82	A+PTR	delta.vicentin.com.ar
181.15.91.83	A+PTR	host83.181-15-91.telecom.net.ar
181.15.91.106	A	sal-se-1.se.evento02.activecds.telecomcdn.com.ar
181.15.91.146	A+PTR	mail.alberdisa.com.ar
181.15.91.146	A	dns1.alberdisa.com.ar
181.15.91.146	A	host146.181-15-91.telecom.net.ar
181.15.91.220	A+PTR	host220.181-15-91.telecom.net.ar
181.15.91.220	A	mibilleteramovil.com.ar
181.15.91.220	A	sosmovil.com.ar
181.15.91.221	A	sicomonline.com.ar
181.15.91.222	PTR	host222.181-15-91.telecom.net.ar
181.15.92.77	PTR	correo2.justucuman.gob.ar
181.15.92.77	A+PTR	correo2.justucuman.gov.ar
181.15.92.77	PTR	milter1.justucuman.gob.ar
181.15.92.78	PTR	host78.181-15-92.telecom.net.ar
181.15.93.30	A+PTR	host30.181-15-93.telecom.net.ar
181.15.93.30	A	terralon.com.ar
181.15.93.30	A	evolusoftweb.com.ar
181.15.93.226	PTR	secure.tarjetanaranja.com.ar
181.15.93.226	A	netscalerip1.tarjetanaranja.com
181.15.93.226	A	netscalerip1.cobranzasregionales.com.ar
181.15.93.228	PTR	dnsteco1.tarjetanaranja.com.ar
181.15.93.228	A	dnsteco1.tarjetanaranja.com
181.15.93.229	PTR	dnsteco2.tarjetanaranja.com.ar
181.15.93.232	A	www.gslb.rednaranja.com.ar
181.15.93.232	A	secure.gslb.naranja.com
181.15.93.233	A	tndmz02.gslb.tarjetanaranja.com.ar
181.15.93.233	A	tndmz02.tarjetanaranja.com.ar
181.15.93.234	PTR	host234.181-15-93.telecom.net.ar
181.15.93.235	PTR	tndmz07.tarjetanaranja.com.ar
181.15.93.240	A	naranjaonline.tarjetanaranja.com
181.15.93.240	A	naranjaonline.gslb.tarjetanaranja.com
181.15.93.240	A	naranjaonline.gslb.naranja.com
181.15.93.244	PTR	smtpout.tarjetanaranja.com.ar
181.15.93.244	A	smtpout.gslb.tarjetanaranja.com.ar
181.15.93.249	A+PTR	host249.181-15-93.telecom.net.ar
181.15.93.249	A	solicitatutarjeta.gslb.naranja.com
181.15.93.249	A	mail.gslb.naranja.com
181.15.94.90	A+PTR	host90.181-15-94.telecom.net.ar
181.15.94.90	A	www.hcder.gov.ar
181.15.94.90	A	hcder.gov.ar
181.15.94.92	A+PTR	host92.181-15-94.telecom.net.ar
181.15.94.92	A	www.hcder.gov.ar
181.15.94.229	A+PTR	host229.181-15-94.telecom.net.ar
181.15.94.229	A	lasegunda.com.ar
181.15.95.58	A+PTR	host58.181-15-95.telecom.net.ar
181.15.95.60	A+PTR	host60.181-15-95.telecom.net.ar
181.15.95.60	A	gdemail.catamarca.gob.ar
181.15.95.62	A	host62.181-15-95.telecom.net.ar
181.15.95.113	PTR	host113.181-15-95.telecom.net.ar
181.15.95.156	A+PTR	host156.181-15-95.telecom.net.ar
181.15.95.157	A+PTR	host157.181-15-95.telecom.net.ar
181.15.95.158	A+PTR	host158.181-15-95.telecom.net.ar