Robtex

Up: 216.244.160.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 216.244.176.0/21
Down right: 216.244.184.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.244.177.81	PTR	ripley.com.pe
216.244.177.82	PTR	em-server.ripley.com.pe
216.244.177.91	PTR	mail.eqpe.com
216.244.177.91	PTR	mail.aseyco.com.pe
216.244.177.163	PTR	mail.proempresa.com.pe
216.244.178.42	A	mailbisa.bisa.com.pe
216.244.178.57	A+PTR	mail.bisa.com.pe
216.244.179.163	PTR	correo.cofide.com.pe
216.244.179.227	PTR	arvisa.com
216.244.180.180	PTR	coes1.org.pe
216.244.180.234	PTR	gis.regioncallao.gob.pe
216.244.180.234	PTR	mail.regioncallao.gob.pe
216.244.181.1	PTR	chacarilla.com.pe
216.244.181.98	A+PTR	mail.asiagym.com.pe
216.244.181.98	PTR	mail.bluegymspa.com.pe
216.244.181.98	A+PTR	mail.chacarilla.com.pe
216.244.181.106	A	mail.aranwahotels.com
216.244.182.141	PTR	mail.gruposilvestre.com.pe
216.244.183.77	PTR	mail.sandoval.com.pe
216.244.183.77	PTR	mgr01.sandoval.com.pe
216.244.183.194	A	mail.centenario.pe
216.244.185.67	A	tta.csl.com.pe
216.244.185.68	A	asjd.csl.com.pe
216.244.185.115	PTR	mail.csl.com.pe
216.244.185.211	PTR	www.tecsup.edu.pe
216.244.186.194	PTR	mail.raizperu.com
216.244.186.194	PTR	mail.directorioraizperu.com.pe
216.244.186.201	PTR	mail.corporativa.com.pe
216.244.186.201	PTR	mail.roure.com.pe
216.244.186.201	PTR	mail.bressol.org.pe
216.244.187.99	PTR	mail.skanska.com.pe
216.244.188.98	PTR	mail.americanreps.com
216.244.188.98	PTR	mail.atecperu.com
216.244.188.98	PTR	mail.computeradviceperu.com
216.244.188.152	PTR	mail.ciplima.pe
216.244.188.166	A	ringwoodpolice.com
216.244.188.190	A	correo.cdlima.org.pe
216.244.191.4	A	whatsup.firstcom.com.pe
216.244.191.13	A	video.firstcom.com.pe
216.244.191.18	A	payment.firstcom.com.pe
216.244.191.74	A	h1.telmex.com.pe
216.244.191.110	A+PTR	a1.telmex.com.pe