Robtex

Up: 210.4.0.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 210.4.0.0/22
Down right: 210.4.4.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
210.4.2.4	PTR	ns01.bti.net.ph
210.4.2.6	PTR	smtp3.bti.net.ph
210.4.2.8	PTR	ns2.dil.bti.net.ph
210.4.2.9	PTR	ns3.dil.bti.net.ph
210.4.2.14	A+PTR	aaa2-dil.bti.net.ph
210.4.2.15	A	aaa2b.dil.bti.net.ph
210.4.2.49	PTR	smtp2-dil.bti.net.ph
210.4.2.50	A+PTR	vsf-mx1.bti.net.ph
210.4.2.61	PTR	nsvip-dil.bti.net.ph
210.4.3.2	A	mx3.emc.com.ph
210.4.3.2	A	mxbt.dot.ph
210.4.3.2	A	avmx1.domains.ph
210.4.3.52	PTR	pop.skybroadband.com.ph
210.4.3.52	A	dev-server.bti.net.ph
210.4.3.54	PTR	smtp.skybroadband.com.ph
210.4.3.56	PTR	dev-server.bti.net.ph
210.4.3.233	PTR	ns.mahjong88.com
210.4.5.70	A	business.bdo.com.ph
210.4.5.88	A	www.mobile.bdo.com.ph
210.4.5.99	A	www.mobile02.bdo.com.ph
210.4.5.111	A	online.bdo.com.ph
210.4.5.117	A	www.bdo.com.ph
210.4.5.121	A	bdonomura.com.ph
210.4.5.243	A	www2.punongbayan-araullo.com
210.4.6.91	PTR	mail13.mabuhaymiles.com
210.4.6.94	PTR	mail.philippineairlines.com
210.4.6.95	A	www.pal.com.ph
210.4.6.95	A	www.jp.philippineair.com
210.4.6.95	A	jp.philippineair.com