Robtex

Up: 203.198.126.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 203.198.127.0/25
Down right: 203.198.127.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.198.127.1	A+PTR	001.127.198.203.static.netvigator.com
203.198.127.2	A+PTR	002.127.198.203.static.netvigator.com
203.198.127.3	A+PTR	003.127.198.203.static.netvigator.com
203.198.127.4	A+PTR	004.127.198.203.static.netvigator.com
203.198.127.4	A	mail.pus.com.hk
203.198.127.4	A	www.pus.com.hk
203.198.127.5	PTR	mail.cs-hk.com.hk
203.198.127.5	A	mail.uni-rich.com
203.198.127.5	A	4eonly.com
203.198.127.6	A+PTR	006.127.198.203.static.netvigator.com
203.198.127.6	A	ns1.jewellworld.com
203.198.127.6	A	ns1.lukfook.com.hk
203.198.127.11	A+PTR	011.127.198.203.static.netvigator.com
203.198.127.12	A+PTR	012.127.198.203.static.netvigator.com
203.198.127.13	A+PTR	013.127.198.203.static.netvigator.com
203.198.127.14	A+PTR	014.127.198.203.static.netvigator.com
203.198.127.14	A	mail.eurogogo.com
203.198.127.33	A	aworklan021033.netvigator.com
203.198.127.36	A	mail1.awotglobal.com
203.198.127.38	A	aworklan021038.netvigator.com
203.198.127.53	A	mail.afinadata.com
203.198.127.57	A+PTR	057.127.198.203.static.netvigator.com
203.198.127.57	A	mail.plantologie.com
203.198.127.57	A	aworklan021057.netvigator.com
203.198.127.73	PTR	073.127.198.203.static.netvigator.com
203.198.127.73	A	tst.hingfu.com
203.198.127.88	A	aworklan021088.netvigator.com
203.198.127.105	A	aworklan021105.netvigator.com
203.198.127.116	A+PTR	mail.amnesty.org.hk
203.198.127.116	A	116.127.198.203.static.netvigator.com
203.198.127.122	A+PTR	122.127.198.203.static.netvigator.com
203.198.127.168	A+PTR	168.127.198.203.static.netvigator.com
203.198.127.170	PTR	webmail.innovi.com
203.198.127.170	PTR	webmail.fors.com.hk
203.198.127.170	PTR	webmail.romaster.com.hk
203.198.127.175	A	mailgw01.hy201319.com
203.198.127.200	A+PTR	200.127.198.203.static.netvigator.com
203.198.127.221	A	hkcorporate-service.com
203.198.127.221	A	hk-efax.com
203.198.127.221	A	cmbwinglungbak.com
203.198.127.229	PTR	s1.hk-compu.com
203.198.127.238	A	aworklan021238.netvigator.com
203.198.127.241	A+PTR	mail.novastel.com.hk
203.198.127.241	A	mail.novastel.com