Robtex

Up: 203.198.48.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 203.198.49.0/25
Down right: 203.198.49.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.198.49.1	A+PTR	001.49.198.203.static.netvigator.com
203.198.49.3	A+PTR	003.49.198.203.static.netvigator.com
203.198.49.4	A+PTR	004.49.198.203.static.netvigator.com
203.198.49.5	A+PTR	005.49.198.203.static.netvigator.com
203.198.49.10	A+PTR	010.49.198.203.static.netvigator.com
203.198.49.11	A+PTR	011.49.198.203.static.netvigator.com
203.198.49.12	A+PTR	012.49.198.203.static.netvigator.com
203.198.49.13	A+PTR	013.49.198.203.static.netvigator.com
203.198.49.14	A+PTR	014.49.198.203.static.netvigator.com
203.198.49.107	A	ipvpn004107.netvigator.com
203.198.49.161	A+PTR	161.49.198.203.static.netvigator.com
203.198.49.161	A	mailin.mycredit.hk
203.198.49.161	A	tumx01.transunion-hk.com
203.198.49.162	A+PTR	162.49.198.203.static.netvigator.com
203.198.49.163	A+PTR	163.49.198.203.static.netvigator.com
203.198.49.163	A	ipvpn004163.netvigator.com
203.198.49.163	A	www.cishk.com
203.198.49.165	A+PTR	165.49.198.203.static.netvigator.com
203.198.49.201	A	ipvpn004201.netvigator.com
203.198.49.213	A	ipvpn004213.netvigator.com
203.198.49.215	PTR	215.49.198.203.static.netvigator.com