Robtex

Up: 203.198.156.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 203.198.157.0/25
Down right: 203.198.157.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.198.157.1	A+PTR	001.157.198.203.static.netvigator.com
203.198.157.2	A+PTR	002.157.198.203.static.netvigator.com
203.198.157.3	A+PTR	003.157.198.203.static.netvigator.com
203.198.157.4	A+PTR	004.157.198.203.static.netvigator.com
203.198.157.5	A+PTR	005.157.198.203.static.netvigator.com
203.198.157.10	PTR	010.157.198.203.static.netvigator.com
203.198.157.11	A+PTR	011.157.198.203.static.netvigator.com
203.198.157.13	A+PTR	013.157.198.203.static.netvigator.com
203.198.157.65	A+PTR	egssurvey.com
203.198.157.65	A	c-products.com.hk
203.198.157.65	A	www.egssurvey.com
203.198.157.85	A+PTR	085.157.198.203.static.netvigator.com
203.198.157.85	A	easyvolunteer.hk
203.198.157.85	A	www.easyvolunteer.hk
203.198.157.115	A+PTR	115.157.198.203.static.netvigator.com
203.198.157.115	A	www.merrillifn.com
203.198.157.118	A	ns1.merrillifn.com.hk
203.198.157.118	A	mail.merrillifn.com.hk
203.198.157.120	A	ipvpn084120.netvigator.com
203.198.157.122	A+PTR	122.157.198.203.static.netvigator.com
203.198.157.122	A	ipvpn084122.netvigator.com
203.198.157.122	A	mailmx1.merrillifn.com
203.198.157.123	A	ipvpn084123.netvigator.com
203.198.157.124	A+PTR	124.157.198.203.static.netvigator.com
203.198.157.124	A	mail.ifnasia.com
203.198.157.125	A	ipvpn084125.netvigator.com
203.198.157.145	A+PTR	mail.hastings-hk.com
203.198.157.146	A	ipvpn084146.netvigator.com
203.198.157.148	A+PTR	mail3.hastings-hk.com
203.198.157.150	A+PTR	150.157.198.203.static.netvigator.com
203.198.157.150	A	webmail.hastings-hk.com
203.198.157.150	A	ipvpn084150.netvigator.com
203.198.157.155	A+PTR	mail2.hastings-hk.com
203.198.157.169	A+PTR	169.157.198.203.static.netvigator.com
203.198.157.176	A+PTR	176.157.198.203.static.netvigator.com
203.198.157.179	A	www.ts.edu.hk
203.198.157.221	A+PTR	221.157.198.203.static.netvigator.com
203.198.157.244	A+PTR	244.157.198.203.static.netvigator.com