Robtex

Up: 203.161.22.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 203.161.23.0/25
Down right: 203.161.23.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.161.23.1	PTR	static23-1.uninet.net.id
203.161.23.1	A	hotspot.uninet.net.id
203.161.23.11	PTR	static23-11.uninet.net.id
203.161.23.19	PTR	static23-19.uninet.net.id
203.161.23.19	A	galvakami.com
203.161.23.26	PTR	static23-26.uninet.net.id
203.161.23.28	PTR	static23-28.uninet.net.id
203.161.23.100	PTR	static23-100.uninet.net.id
203.161.23.100	A	postmail.musashi.co.id
203.161.23.142	A+PTR	office.sespi.co.id
203.161.23.147	A+PTR	office.g-tim.co.id
203.161.23.147	A	g-tim.co.id
203.161.23.147	A	5860814.700niu.com
203.161.23.205	A+PTR	ithacaresources.com
203.161.23.205	A	www.ithacaresources.com
203.161.23.205	A	ithacacoal.com
203.161.23.206	PTR	static23-206.uninet.net.id
203.161.23.218	PTR	static23-218.uninet.net.id
203.161.23.219	PTR	static23-219.uninet.net.id
203.161.23.219	A	www.musashi.co.id
203.161.23.221	A+PTR	postmail.musashi.co.id
203.161.23.221	A	musashi.co.id
203.161.23.242	PTR	static23-242.uninet.net.id
203.161.23.242	A	office1.ttmi.co.id
203.161.23.254	PTR	office.ait-systems.com
203.161.23.254	A	cemani-toka.co.id
203.161.23.254	A	tokai-texprint.co.id