Robtex

Up: 76.72.224.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 76.72.240.0/21
Down right: 76.72.248.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
76.72.243.22	A	*.costaricarealstate.net
76.72.243.22	A	mail.buyincostarica.com
76.72.243.198	A	mail.eisec.net
76.72.243.234	A	adsequi.com
76.72.243.234	A	snappyvault.com
76.72.244.2	PTR	mail1.pueblo.net
76.72.244.194	A	labmaldonado.com
76.72.244.199	A+PTR	allmail.gaoprdns.com
76.72.244.199	A	mail.hyundaidebayamon.com
76.72.244.199	A	seguscar.com
76.72.245.5	A+PTR	mail.mocpr.com
76.72.245.42	PTR	mail2.finanxial.com
76.72.245.42	A	mx2.firstprocessingpr.com
76.72.245.242	A	mx2.pmalaw.com
76.72.246.26	PTR	mail2.colonlaw.com
76.72.246.58	A+PTR	mail.ramsimports.com
76.72.246.58	A	mail.iwearfashions.com
76.72.246.62	A+PTR	mail1.mocpr.com
76.72.246.70	PTR	hrfpr.com
76.72.246.70	PTR	mail.epilawpr.com
76.72.246.70	A+PTR	mail.hrfpr.com
76.72.246.118	A	mail.oneillborges.com
76.72.246.122	A	w-it-systems.com
76.72.246.150	PTR	mail.cnrd.com
76.72.246.150	A	ns2.cnrd.com
76.72.246.150	A	ns1.cnrd.com
76.72.246.178	A+PTR	mail1.mcvpr.com
76.72.246.182	PTR	gw-bay.olespr.com
76.72.247.118	A+PTR	humvi.com
76.72.247.118	A+PTR	mail.humvi.com
76.72.247.118	A	*.humvi.com
76.72.247.210	A+PTR	210-247-72-76-ce.nnpr.net
76.72.247.242	A	fmccallcenter.com
76.72.248.14	A	mail.encantopr.com
76.72.249.51	PTR	mail.netsedu.com
76.72.249.51	A	netsedu.com
76.72.249.59	PTR	www.plazacellars.com
76.72.249.59	A	mx.plazacellars.com
76.72.249.84	A+PTR	conectate.eobpr.com
76.72.249.84	A+PTR	mail.eobpr.com
76.72.249.84	A+PTR	remote.eobpr.com
76.72.249.130	A	ftp.credicentrocoop.com
76.72.249.131	PTR	credicentrocoop.com
76.72.249.131	PTR	mail.credicentrocoop.com
76.72.249.132	PTR	vpn.credicentrocoop.com
76.72.249.187	A+PTR	mail.mayaguezmedical.com
76.72.249.189	A	webapps.mayaguezmedical.com
76.72.249.202	A+PTR	mail.directresponsource.com
76.72.249.202	A+PTR	octopus.directresponsource.com
76.72.249.203	A+PTR	ftp.directresponsource.com
76.72.249.203	A+PTR	www.directresponsource.com
76.72.249.219	A	segurayenpaz.com
76.72.249.220	A	municipiocarolina.com
76.72.249.220	A	www.disfrutacarolina.com
76.72.249.220	A	www.municipiocarolina.com
76.72.249.222	A	municipiocarolina.com
76.72.250.10	PTR	mail.bcbscostarica.com
76.72.250.10	PTR	mail.bcbsusvi.com
76.72.250.10	PTR	mail.ssspr.com
76.72.250.16	PTR	mail02.bcbsusvi.com
76.72.250.16	PTR	mail02.ssspr.com
76.72.250.16	PTR	mail02.sssvida.com
76.72.250.20	PTR	ns5.ssspr.com
76.72.250.34	PTR	mail.universalsolar.com
76.72.250.34	PTR	mail.wfcpr.com
76.72.250.34	A	mail2.universalsolar.com
76.72.250.35	PTR	mail.universalsolar.com
76.72.250.35	PTR	mail.wfcpr.com
76.72.250.67	A	mail.tolic.com
76.72.250.68	A	www.tolic.com
76.72.251.14	PTR	mail.partycitypr.com
76.72.251.34	A	dns2.uaa.edu
76.72.251.52	A	tutarjetaabcd.com
76.72.251.54	A+PTR	smsfilter.chsc-pr.org
76.72.251.167	PTR	ns1.e-nablercorp.com
76.72.251.168	PTR	ns2.e-nablercorp.com
76.72.251.169	PTR	ns3.e-nablercorp.com
76.72.251.172	A	enablermobile.com
76.72.251.174	A	enablercorp.com
76.72.251.186	PTR	mail.e-nablercorp.com
76.72.251.186	A+PTR	mail.enablercorp.com
76.72.252.69	A	mail01.visuperiorcourt.org
76.72.252.111	A+PTR	mail.usvigers.com
76.72.252.112	A+PTR	ftp.usvigers.com
76.72.252.121	A+PTR	mssv3prod.usvigers.com
76.72.252.122	PTR	essv3prod.usvigers.com
76.72.252.223	A	legvi.org
76.72.252.228	PTR	excise.vibir.gov
76.72.252.229	A+PTR	mail.irb.gov.vi
76.72.252.229	A	vibir.gov
76.72.252.229	A	irb-vm1.viirb.com
76.72.254.82	A	mail.guillemardlaw.com
76.72.254.202	A	exch.computerlink.cc