Robtex

Up: 61.239.231.0/24
Can't show all results, try to descend to a more specific CIDR
Down left: 61.239.231.0/26
Down right: 61.239.231.64/26
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
61.239.231.1	A+PTR	061239231001.ctinets.com
61.239.231.2	A+PTR	061239231002.ctinets.com
61.239.231.20	A+PTR	061239231020.ctinets.com
61.239.231.26	A+PTR	061239231026.ctinets.com
61.239.231.27	A+PTR	061239231027.ctinets.com
61.239.231.28	A+PTR	061239231028.ctinets.com
61.239.231.38	A+PTR	061239231038.ctinets.com
61.239.231.45	A+PTR	061239231045.ctinets.com
61.239.231.46	A+PTR	061239231046.ctinets.com
61.239.231.48	A+PTR	061239231048.ctinets.com
61.239.231.51	A+PTR	061239231051.ctinets.com
61.239.231.62	A+PTR	061239231062.ctinets.com
61.239.231.63	A+PTR	061239231063.ctinets.com
61.239.231.68	A+PTR	061239231068.ctinets.com
61.239.231.73	A+PTR	061239231073.ctinets.com
61.239.231.78	A+PTR	061239231078.ctinets.com
61.239.231.79	A+PTR	061239231079.ctinets.com
61.239.231.81	A+PTR	061239231081.ctinets.com
61.239.231.82	A+PTR	061239231082.ctinets.com
61.239.231.84	A+PTR	061239231084.ctinets.com
61.239.231.93	A+PTR	061239231093.ctinets.com
61.239.231.98	A+PTR	061239231098.ctinets.com
61.239.231.100	A+PTR	061239231100.ctinets.com
61.239.231.107	A+PTR	061239231107.ctinets.com
61.239.231.113	A+PTR	061239231113.ctinets.com
61.239.231.115	PTR	061239231115.ctinets.com
61.239.231.115	A	ns2.chu-hk.com
61.239.231.115	A	*.chu-hk.com
61.239.231.117	A+PTR	061239231117.ctinets.com
61.239.231.119	A+PTR	061239231119.ctinets.com