Robtex

Up: 121.96.160.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 121.96.176.0/21
Down right: 121.96.184.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
121.96.176.100	PTR	121.96.176.100.bti.net.ph
121.96.176.210	PTR	121.96.176.210.bti.net.ph
121.96.178.19	PTR	121.96.178.19.bti.net.ph
121.96.178.80	PTR	121.96.178.80.bti.net.ph
121.96.178.112	PTR	121.96.178.112.bti.net.ph
121.96.178.227	PTR	121.96.178.227.bti.net.ph
121.96.181.191	PTR	121.96.181.191.bti.net.ph
121.96.182.18	PTR	ns2.nexustech.com.ph
121.96.182.35	PTR	121.96.182.35.bti.net.ph
121.96.182.72	A	sysdamin.manilawater.com
121.96.182.72	A	*.manilawater.com
121.96.182.135	PTR	121.96.182.135.bti.net.ph
121.96.182.157	PTR	121.96.182.157.bti.net.ph
121.96.182.157	A	mailserver.totalpackmfg.com
121.96.182.157	A	europrintinc.com
121.96.182.159	PTR	121.96.182.159.bti.net.ph
121.96.182.161	PTR	121.96.182.161.bti.net.ph
121.96.182.175	A	mail1.andokscorp.com
121.96.182.198	PTR	121.96.182.198.bti.net.ph
121.96.182.198	A	sfic.org.ph
121.96.182.255	PTR	121.96.182.255.bti.net.ph
121.96.183.209	A	smtp.realbank.com.ph
121.96.183.254	PTR	121.96.183.254.bti.net.ph
121.96.187.74	A	turbolane.net
121.96.187.225	PTR	121.96.187.225.bti.net.ph
121.96.188.168	A	webmail.lh-ventures.com
121.96.188.168	A	ns1.basic-graphics.com
121.96.188.168	A	ispbayan.basic-graphics.com
121.96.188.169	A	mx1.lh-ventures.com
121.96.188.250	A	mail6.awsol-i.com
121.96.190.15	PTR	121.96.190.15.bti.net.ph
121.96.190.36	PTR	121.96.190.36.bti.net.ph
121.96.190.255	PTR	121.96.190.255.bti.net.ph
121.96.191.18	A	mail.vibelle.com
121.96.191.255	PTR	121.96.191.255.bti.net.ph