Robtex

Up: 61.239.48.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 61.239.52.0/23
Down right: 61.239.54.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
61.239.53.1	A+PTR	061239053001.ctinets.com
61.239.53.2	A+PTR	061239053002.ctinets.com
61.239.53.3	A+PTR	061239053003.ctinets.com
61.239.53.14	A	061239053014.ctinets.com
61.239.53.27	A	061239053027.ctinets.com
61.239.53.30	A+PTR	061239053030.ctinets.com
61.239.53.32	A+PTR	061239053032.ctinets.com
61.239.53.33	A+PTR	061239053033.ctinets.com
61.239.53.40	A+PTR	061239053040.ctinets.com
61.239.53.52	A+PTR	061239053052.ctinets.com
61.239.53.60	A+PTR	061239053060.ctinets.com
61.239.53.81	A+PTR	061239053081.ctinets.com
61.239.53.86	A+PTR	061239053086.ctinets.com
61.239.53.88	A+PTR	061239053088.ctinets.com
61.239.53.113	A	061239053113.ctinets.com
61.239.53.117	A+PTR	061239053117.ctinets.com
61.239.53.119	A+PTR	061239053119.ctinets.com
61.239.53.121	A+PTR	061239053121.ctinets.com
61.239.53.124	A+PTR	061239053124.ctinets.com
61.239.53.150	A+PTR	061239053150.ctinets.com
61.239.53.166	A+PTR	061239053166.ctinets.com
61.239.53.172	A+PTR	061239053172.ctinets.com
61.239.53.174	A+PTR	061239053174.ctinets.com
61.239.53.199	A+PTR	061239053199.ctinets.com
61.239.53.209	A+PTR	061239053209.ctinets.com
61.239.53.231	A+PTR	061239053231.ctinets.com
61.239.53.238	A+PTR	061239053238.ctinets.com
61.239.54.150	A+PTR	061239054150.ctinets.com
61.239.54.150	A	skycathk.com
61.239.54.226	A+PTR	061239054226.ctinets.com
61.239.54.226	A	mail.tkoboc.org
61.239.54.226	A	match852.com
61.239.55.148	A+PTR	061239055148.ctinets.com
61.239.55.148	A	stevenlauhk.com
61.239.55.227	A+PTR	061239055227.ctinets.com
61.239.55.227	A	cummerie.com