Robtex

Up: 200.73.2.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 200.73.3.0/25
Down right: 200.73.3.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
200.73.3.0	PTR	host0.200.73.3.static.ifxnw.cl
200.73.3.36	PTR	host36.200.73.3.static.ifxnw.cl
200.73.3.37	PTR	host37.200.73.3.static.ifxnw.cl
200.73.3.37	A	didaktik.cl
200.73.3.37	A	www.didaktik.cl
200.73.3.41	A	ns.gesemau.cl
200.73.3.50	PTR	host50.200.73.3.static.ifxnw.cl
200.73.3.57	PTR	clustersmtp.openb.cl
200.73.3.60	PTR	mail.humancapital.cl
200.73.3.68	PTR	host68.200.73.3.static.ifxnw.cl
200.73.3.68	A	ns.netprovider.cl
200.73.3.69	PTR	host69.200.73.3.static.ifxnw.cl
200.73.3.69	A	ns.netprovider.cl
200.73.3.69	A	beta.netprovider.cl
200.73.3.71	PTR	host71.200.73.3.static.ifxnw.cl
200.73.3.71	A	mta1.belzart.cl
200.73.3.71	A	mta2.iplacex.cl
200.73.3.74	PTR	host74.200.73.3.static.ifxnw.cl
200.73.3.74	A	mta00.netprovider.cl
200.73.3.103	PTR	host103.200.73.3.static.ifxnw.cl
200.73.3.104	PTR	host104.200.73.3.static.ifxnw.cl
200.73.3.105	A	ns1.maildelivery.cl
200.73.3.112	PTR	www.bymcomputer.cl
200.73.3.117	PTR	www.chilewarez.org
200.73.3.163	PTR	atlas.crossmail.cl
200.73.3.163	A	ironman.crossmail.cl
200.73.3.163	A	cross-media.cl
200.73.3.165	A	www.estadodecuentacmr.cl
200.73.3.166	A+PTR	mailserver.mgvchile.cl
200.73.3.166	A	mail.crossmail.cl
200.73.3.166	A	mail.megustaelvino.cl
200.73.3.167	A	misionoferta.cl
200.73.3.168	A	halloffame.cl
200.73.3.168	A	www.megustaelvino.cl
200.73.3.189	PTR	host189.200.73.3.static.ifxnw.cl
200.73.3.189	A	www.megustaelvino.cl
200.73.3.189	A	clubmibarrio.cl
200.73.3.190	A	tarjetafashionspark.com
200.73.3.190	A	www.tarjetafashionspark.com
200.73.3.192	PTR	host192.200.73.3.static.ifxnw.cl
200.73.3.194	PTR	serv.algoritmos.cl
200.73.3.194	A	email.algoritmos.cl
200.73.3.194	A	ns2.algoritmos.cl
200.73.3.195	A	calidaddelaire.cl
200.73.3.197	PTR	host197.200.73.3.static.ifxnw.cl
200.73.3.197	A	mail.asesoriasalgoritmos.com
200.73.3.197	A	alg-lab.com
200.73.3.203	A+PTR	relay3.congreso.cl
200.73.3.205	PTR	host205.200.73.3.static.ifxnw.cl
200.73.3.232	PTR	host232.200.73.3.static.ifxnw.cl
200.73.3.255	PTR	host255.200.73.3.static.ifxnw.cl