Robtex

Up: 117.20.0.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 117.20.16.0/21
Down right: 117.20.24.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
117.20.16.18	PTR	tw16-static18.tw1.com
117.20.16.37	A	perfectteeth.co.uk
117.20.16.98	PTR	tw16-static98.tw1.com
117.20.16.115	PTR	mail2.sbp.org.pk
117.20.16.115	A	saveonyourhomepurchase.com
117.20.16.115	A	webmail1.nibaf.gov.pk
117.20.16.130	PTR	tw16-static130.tw1.com
117.20.16.130	A	secure.bankalhabib.com
117.20.16.131	A+PTR	bsf2.bankalhabib.com
117.20.16.131	A	mx-117-20-16-131.bankalhabib.com
117.20.16.137	A	mail.bankalhabib.com
117.20.18.56	A	research.ucp.edu.pk
117.20.18.57	A	admission.ucp.edu.pk
117.20.18.58	A	online.ucp.edu.pk
117.20.18.146	PTR	tw18-static146.tw1.com
117.20.19.18	PTR	tw19-static18.tw1.com
117.20.19.28	A	twa2.aku.edu
117.20.19.28	A	mail.aku.edu
117.20.19.29	A	twa1.aku.edu
117.20.19.29	A	test1.aku.edu
117.20.19.45	A	affco.com.pk
117.20.19.55	A	smtp04.bankalhabib.com
117.20.20.34	PTR	tw20-static34.tw1.com
117.20.20.70	A	tfntech.com
117.20.20.70	A	webmail.tfntech.com
117.20.21.98	PTR	tw21-static98.tw1.com
117.20.21.108	A	portal.ucp.edu.pk
117.20.21.176	PTR	tw21-static176.tw1.com
117.20.22.1	PTR	tw22-static1.tw1.com
117.20.22.34	PTR	khimail.systemsltd.com
117.20.22.35	PTR	khimail.systemsltd.com
117.20.22.35	A	khi.systemsltd.com
117.20.22.113	A+PTR	mx1.jubileelife.com
117.20.22.113	PTR	mx.njilife.com
117.20.22.113	A	mx1.jubileehealth.com
117.20.22.118	A	mx2.jubileelife.com
117.20.22.131	PTR	mail.bop.com.pk
117.20.22.171	A	mail.atlashonda.com.pk
117.20.22.171	A	ahlkhi.atlashonda.com.pk
117.20.23.18	PTR	mail.tw1.com
117.20.23.34	A	smtp.tes.com.pk
117.20.23.35	PTR	tw23-static35.tw1.com
117.20.23.35	A	webmail.tw1.com
117.20.23.36	A	p-exg-mhc01.tw1.com
117.20.24.5	A	mail.getzpharma.net
117.20.24.6	A	mx0.getzpharma.net
117.20.24.6	A	mx0.getzpharma.com
117.20.24.6	A	mx0.getzpharma.com.pk
117.20.26.130	A+PTR	smtp2.conf-server.com
117.20.26.138	A	smtp10.conf-server.com
117.20.26.140	A	smtp12.conf-server.com
117.20.26.210	PTR	tw26-static210.tw1.com
117.20.27.1	PTR	tw27-static1.tw1.com
117.20.27.2	A	its.eurekanet.pk
117.20.27.5	A	ns1.eurekanet.pk
117.20.27.16	PTR	tw27-static16.tw1.com
117.20.27.19	PTR	smtp3.conf-mail-server.com
117.20.27.34	PTR	tw27-static34.tw1.com
117.20.27.48	PTR	tw27-static48.tw1.com
117.20.27.83	PTR	tw27-static83.tw1.com
117.20.27.85	A	mail-server.rsl.com.pk
117.20.27.86	A	mail-server2.ravian.com
117.20.27.115	PTR	tw27-static115.tw1.com
117.20.27.131	PTR	tw27-static131.tw1.com
117.20.27.147	PTR	tw27-static147.tw1.com
117.20.27.176	PTR	tw27-static176.tw1.com
117.20.27.178	PTR	tw27-static178.tw1.com
117.20.27.195	PTR	tw27-static195.tw1.com
117.20.27.224	PTR	tw27-static224.tw1.com
117.20.27.226	PTR	tw27-static226.tw1.com
117.20.27.227	PTR	tw27-static227.tw1.com
117.20.27.240	PTR	tw27-static240.tw1.com
117.20.27.241	PTR	tw27-static241.tw1.com
117.20.27.242	PTR	tw27-static242.tw1.com
117.20.27.243	PTR	tw27-static243.tw1.com
117.20.28.59	A	tfntechrelay.tfntech.com
117.20.28.60	A	mail.tfntech.com
117.20.28.61	A	iltech-relaysvr.interactivelinetech.com
117.20.28.61	A	iltech-relaysvr.interactionlinetech.com
117.20.28.66	PTR	tw28-static66.tw1.com
117.20.28.72	A	pennyanddime.com
117.20.28.115	PTR	tw28-static115.tw1.com
117.20.28.129	PTR	tw28-static129.tw1.com
117.20.28.162	PTR	tw28-static162.tw1.com
117.20.28.179	PTR	tw28-static179.tw1.com
117.20.28.189	A	testmail.pitc.com.pk
117.20.28.210	PTR	tw28-static210.tw1.com
117.20.28.227	PTR	tw28-static227.tw1.com
117.20.28.240	PTR	tw28-static240.tw1.com
117.20.29.67	PTR	tw29-static67.tw1.com
117.20.29.81	PTR	tw29-static81.tw1.com
117.20.29.130	PTR	tw29-static130.tw1.com
117.20.29.196	A	marketing.dawnnews.tv
117.20.29.210	PTR	kgsmail.kgs.edu.pk
117.20.31.17	PTR	tw31-static17.tw1.com
117.20.31.50	PTR	tw31-static50.tw1.com
117.20.31.66	PTR	tw31-static66.tw1.com
117.20.31.97	PTR	tw31-static97.tw1.com
117.20.31.114	PTR	tw31-static114.tw1.com
117.20.31.178	PTR	tw31-static178.tw1.com