Robtex

Up: 164.42.0.0/15
Can't show all results, try to descend to a more specific CIDR
Down left: 164.42.0.0/17
Down right: 164.42.128.0/17
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
164.42.100.2	A+PTR	dns.ocs.inter.edu
164.42.100.2	A	dns.inter.edu
164.42.100.2	A	dns01.inter.edu
164.42.100.3	PTR	inter.edu
164.42.100.3	PTR	mail.inter.edu
164.42.100.3	PTR	ns2.inter.edu
164.42.100.5	PTR	caiprod.inter.edu
164.42.102.213	A	orion1.ocs.inter.edu
164.42.103.247	A+PTR	cam2.inter.edu
164.42.103.247	PTR	host103-247.inter.edu
164.42.105.58	A	orion1.ocs.inter.edu
164.42.128.5	A+PTR	alpha.sg.inter.edu
164.42.128.100	A+PTR	web.sg.inter.edu
164.42.128.100	A	sg.inter.edu
164.42.128.100	A	www.sg.inter.edu
164.42.132.135	PTR	metro.inter.edu
164.42.150.7	A	dns.bayamon.inter.edu
164.42.150.7	A	dns.interamerican.aero
164.42.150.7	A	dns.bc.inter.edu
164.42.157.2	A+PTR	acpon1.ponce.inter.edu
164.42.157.2	A	correo.ponce.inter.edu
164.42.157.12	A	itserver.ponce.inter.edu
164.42.157.18	A	cit.ponce.inter.edu
164.42.164.27	PTR	host164-27.inter.edu
164.42.166.8	PTR	host166-8.inter.edu
164.42.166.16	A+PTR	fm400.gate.arecibo.inter.edu
164.42.166.19	PTR	host166-19.inter.edu
164.42.166.19	A	webmail.arecibo.inter.edu
164.42.166.19	A	mail.arecibo.inter.edu
164.42.167.201	A	ns1.arecibo.inter.edu
164.42.176.6	PTR	host176-6.inter.edu
164.42.176.6	A+PTR	opto.inter.edu
164.42.176.6	A+PTR	optonet.inter.edu
164.42.176.21	A	proyectoninezfeliz.com
164.42.179.199	A	fm100.mail.juris.inter.edu
164.42.179.237	A	david.derecho.inter.edu
164.42.182.5	A+PTR	aguadilla.inter.edu
164.42.182.5	A+PTR	www.aguadilla.inter.edu
164.42.182.82	A	mail.aguadilla.inter.edu
164.42.183.2	A+PTR	smtp.smail.aguadilla.inter.edu
164.42.183.3	A+PTR	oraculo.aguadilla.inter.edu
164.42.189.2	A+PTR	fajardo.inter.edu
164.42.189.2	PTR	host189-2.inter.edu
164.42.189.2	A	www.fajardo.inter.edu
164.42.189.89	A	hmgfxf1.admin.fajardo.inter.edu
164.42.196.2	PTR	br.inter.edu
164.42.196.2	PTR	cai.br.inter.edu
164.42.196.2	PTR	exchange.br.inter.edu
164.42.196.3	PTR	isabqfac.br.inter.edu
164.42.196.3	PTR	portal.br.inter.edu
164.42.196.3	PTR	studentspace.br.inter.edu
164.42.196.5	PTR	dns2.br.inter.edu
164.42.196.5	A	uibr-dns2-ocs.br.inter.edu
164.42.196.21	A+PTR	uibr-dns1-ocs.br.inter.edu
164.42.237.1	PTR	host237-1.inter.edu