Robtex

Up: 138.99.224.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 138.99.224.0/23
Down right: 138.99.226.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
138.99.224.39	PTR	host138.99.224.39.dynamic.pacificonet.cl
138.99.224.86	PTR	host138.99.224.86.dynamic.pacificonet.cl
138.99.224.91	PTR	host138.99.224.91.dynamic.pacificonet.cl
138.99.224.115	PTR	host138.99.224.115.dynamic.pacificonet.cl
138.99.224.160	PTR	host138.99.224.160.dynamic.pacificonet.cl
138.99.224.180	PTR	host138.99.224.180.dynamic.pacificonet.cl
138.99.226.12	PTR	host138.99.226.12.dynamic.pacificonet.cl
138.99.226.12	A	r1.sn-25jp4pjv-jj2l.gvt1.com
138.99.226.12	A	r1.sn-25jp4pjv-jj2l.googlevideo.com
138.99.226.13	PTR	host138.99.226.13.dynamic.pacificonet.cl
138.99.226.13	A	r2---sn-25jp4pjv-jj2l.googlevideo.com
138.99.226.14	PTR	host138.99.226.14.dynamic.pacificonet.cl
138.99.226.76	PTR	host138.99.226.76.dynamic.pacificonet.cl
138.99.226.76	A	r1.sn-25jp4pjv-jj2s.googlevideo.com
138.99.226.76	A	r1.sn-25jp4pjv-jj2s.gvt1.com
138.99.226.77	PTR	host138.99.226.77.dynamic.pacificonet.cl
138.99.226.77	A	r2.sn-25jp4pjv-jj2s.gvt1.com
138.99.226.77	A	r2.sn-25jp4pjv-jj2s.googlevideo.com
138.99.226.78	PTR	host138.99.226.78.dynamic.pacificonet.cl
138.99.226.79	PTR	host138.99.226.79.dynamic.pacificonet.cl
138.99.226.80	PTR	host138.99.226.80.dynamic.pacificonet.cl
138.99.226.80	A	r5.sn-25jp4pjv-jj2s.gvt1.com
138.99.226.80	A	r5.sn-25jp4pjv-jj2s.googlevideo.com
138.99.226.81	PTR	host138.99.226.81.dynamic.pacificonet.cl
138.99.226.81	A	r6.sn-25jp4pjv-jj2s.googlevideo.com
138.99.226.81	A	r6.sn-25jp4pjv-jj2s.gvt1.com
138.99.226.82	PTR	host138.99.226.82.dynamic.pacificonet.cl
138.99.226.83	PTR	host138.99.226.83.dynamic.pacificonet.cl
138.99.226.145	PTR	host138.99.226.145.dynamic.pacificonet.cl
138.99.226.145	A	scontent.fccp1-1.fna.fbcdn.net
138.99.226.145	A	external.fccp1-1.fna.fbcdn.net
138.99.226.146	PTR	host138.99.226.146.dynamic.pacificonet.cl
138.99.226.146	A	video.fccp1-1.fna.fbcdn.net
138.99.226.158	PTR	host138.99.226.158.dynamic.pacificonet.cl
138.99.226.158	A	sonar.fccp1-1.fna.fbcdn.net
138.99.226.160	PTR	host138.99.226.160.dynamic.pacificonet.cl
138.99.226.160	A	instagram.fccp1-1.fna.fbcdn.net
138.99.226.161	PTR	host138.99.226.161.dynamic.pacificonet.cl
138.99.226.161	A	media.fccp1-1.fna.whatsapp.net
138.99.226.162	PTR	host138.99.226.162.dynamic.pacificonet.cl
138.99.226.162	A	z-p3-scontent.fccp1-1.fna.fbcdn.net
138.99.226.168	PTR	host138.99.226.168.dynamic.pacificonet.cl