Robtex

Up: 181.88.160.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 181.88.176.0/21
Down right: 181.88.184.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
181.88.176.45	PTR	host45.181-88-176.telecom.net.ar
181.88.176.65	PTR	host65.181-88-176.telecom.net.ar
181.88.177.3	PTR	host3.181-88-177.telecom.net.ar
181.88.177.4	PTR	host4.181-88-177.telecom.net.ar
181.88.177.5	PTR	host5.181-88-177.telecom.net.ar
181.88.177.131	PTR	host131.181-88-177.telecom.net.ar
181.88.177.131	A	mail1.periodicojudicial.gov.ar
181.88.177.132	PTR	host132.181-88-177.telecom.net.ar
181.88.177.132	A	mail2.periodicojudicial.gov.ar
181.88.177.145	PTR	host145.181-88-177.telecom.net.ar
181.88.177.152	PTR	host152.181-88-177.telecom.net.ar
181.88.177.153	PTR	host153.181-88-177.telecom.net.ar
181.88.177.154	A	srconlara.com.ar
181.88.178.11	PTR	host11.181-88-178.telecom.net.ar
181.88.178.56	PTR	host56.181-88-178.telecom.net.ar
181.88.178.133	PTR	host133.181-88-178.telecom.net.ar
181.88.178.182	PTR	host182.181-88-178.telecom.net.ar
181.88.178.182	A	nosury.com
181.88.178.215	PTR	host215.181-88-178.telecom.net.ar
181.88.178.220	PTR	host220.181-88-178.telecom.net.ar
181.88.178.244	PTR	host244.181-88-178.telecom.net.ar
181.88.178.244	A	syzneuuo.com
181.88.179.10	PTR	host10.181-88-179.telecom.net.ar
181.88.179.10	A	ip1.tharsis-it.com
181.88.179.10	A	tharsis-it.com
181.88.179.11	PTR	host11.181-88-179.telecom.net.ar
181.88.179.13	PTR	mail.tharsis-it.com
181.88.180.148	PTR	host148.181-88-180.telecom.net.ar
181.88.180.148	A	mx.stanet.com.ar
181.88.180.149	PTR	host149.181-88-180.telecom.net.ar
181.88.180.149	A	stanet.com.ar
181.88.180.150	PTR	host150.181-88-180.telecom.net.ar
181.88.180.150	A	dns1.stanet.com.ar
181.88.180.210	A	pyhnet.com.ar
181.88.182.2	A	mail.trabucohogar.com.ar
181.88.182.26	A	mail.iucbc.edu.ar
181.88.182.29	PTR	host29.181-88-182.telecom.net.ar
181.88.182.30	PTR	host30.181-88-182.telecom.net.ar
181.88.182.30	A	dns4.webmailhp.com.ar
181.88.182.30	A	dns12.hospitalprivadocordoba.com
181.88.182.34	PTR	host34.181-88-182.telecom.net.ar
181.88.182.138	A	www.villanueva.com.ar
181.88.182.154	A+PTR	ns1.amma.org.ar
181.88.182.154	A	ostamma.org.ar
181.88.182.154	A	www.brooksvilleduiattorney.com
181.88.182.155	PTR	mail.amma.org.ar
181.88.182.194	PTR	host194.181-88-182.telecom.net.ar
181.88.182.194	A	stcor1.telecom.com.ar
181.88.184.4	PTR	host4.181-88-184.telecom.net.ar
181.88.184.4	A	ayacucho2.cotilloncasaalberto.com.ar
181.88.184.26	PTR	host26.181-88-184.telecom.net.ar
181.88.184.26	A	correo1.tevecompras.com
181.88.184.26	A	mail.tevecompras.com
181.88.184.27	PTR	host27.181-88-184.telecom.net.ar
181.88.184.27	A	ns3.tevecompras.com
181.88.184.27	A	correo.tevecompras.com
181.88.184.178	A	mail.disapla.com.ar
181.88.184.211	A+PTR	mx.corporacion.com.ar
181.88.184.211	A	mail.corporacionlaboral.com.ar
181.88.184.211	A	corporacion.com.ar
181.88.184.228	PTR	host228.181-88-184.telecom.net.ar
181.88.184.228	A	csjn.gob.ar
181.88.184.229	A	cc.csjn.gov.ar
181.88.184.229	A	mail.cc.csjn.gov.ar
181.88.184.229	A	acmc.org.ar
181.88.184.231	PTR	host231.181-88-184.telecom.net.ar
181.88.184.232	PTR	mx.csjn.gov.ar
181.88.184.247	PTR	host247.181-88-184.telecom.net.ar
181.88.184.247	A	www.ovd.gov.ar
181.88.184.247	A	2-01-2e4c-0004.cdx.cedexis.net
181.88.188.0	PTR	host0.181-88-188.telecom.net.ar
181.88.188.1	PTR	host1.181-88-188.telecom.net.ar
181.88.188.5	A	dns2.catastrocordoba.gob.ar
181.88.188.5	A	dns2.cba.gov.ar
181.88.188.5	A	dns2.cba.gob.ar
181.88.188.7	A	sierras.cba.gov.ar
181.88.188.17	PTR	host17.181-88-188.telecom.net.ar
181.88.188.17	A	recibodigital.cba.gov.ar
181.88.188.18	A	web2.cba.gov.ar
181.88.188.19	A	www.cordobaturismo.gov.ar
181.88.188.22	PTR	host22.181-88-188.telecom.net.ar
181.88.188.22	A	consejodelasmujeres.cba.gov.ar
181.88.188.33	PTR	host33.181-88-188.telecom.net.ar
181.88.188.33	A	magya.cba.gov.ar
181.88.188.44	PTR	host44.181-88-188.telecom.net.ar
181.88.188.44	A	gestioneducativa.cba.gov.ar
181.88.188.46	A	e-sifcos.cba.gov.ar
181.88.188.54	PTR	host54.181-88-188.telecom.net.ar
181.88.188.54	A	estadistica.cba.gov.ar
181.88.188.64	PTR	host64.181-88-188.telecom.net.ar
181.88.188.64	A	boletoeducativogratuito.cba.gov.ar
181.88.188.71	A	m4ess.cba.gov.ar
181.88.188.79	A	cidi.cba.gov.ar
181.88.188.81	PTR	host81.181-88-188.telecom.net.ar
181.88.188.81	A	upc.edu.ar
181.88.188.93	A	empleo.cba.gov.ar
181.88.188.93	A	www.congresodelalengua.org.ar
181.88.188.93	A	congresodelalengua.org.ar
181.88.188.97	PTR	host97.181-88-188.telecom.net.ar
181.88.188.97	A	compraspublicas.cba.gov.ar
181.88.188.101	A	upc.cba.gov.ar
181.88.188.113	PTR	host113.181-88-188.telecom.net.ar
181.88.188.124	A	ciudadanodigital.cba.gov.ar
181.88.188.157	A	sim.cba.gov.ar
181.88.188.165	PTR	host165.181-88-188.telecom.net.ar
181.88.188.165	A	ddna.cba.gov.ar
181.88.188.221	PTR	smtp4.cba.gob.ar
181.88.188.221	A+PTR	smtp4.cba.gov.ar
181.88.188.240	A+PTR	envios.cba.gov.ar
181.88.188.241	A+PTR	envios.cba.gov.ar
181.88.188.242	A+PTR	envios.cba.gov.ar
181.88.188.243	A+PTR	envios.cba.gov.ar
181.88.188.244	A	envios.cba.gov.ar
181.88.188.245	A	envios.cba.gov.ar
181.88.188.246	A	envios.cba.gov.ar
181.88.188.247	A	envios.cba.gov.ar
181.88.188.248	A	envios.cba.gov.ar
181.88.189.254	A	ontvplay.cdn.rcs.net.ar