Robtex

Up: 123.100.104.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 123.100.105.0/25
Down right: 123.100.105.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
123.100.105.2	PTR	geoop.com
123.100.105.3	PTR	geoop.com
123.100.105.3	A	mapfinder.co.nz
123.100.105.3	A	propertyservices.co.nz
123.100.105.4	PTR	geoop.com
123.100.105.5	PTR	geoop.com
123.100.105.6	PTR	geoop.com
123.100.105.6	A	lisawest.co.nz
123.100.105.7	PTR	geoop.com
123.100.105.7	A	streetvalue.co.nz
123.100.105.8	PTR	geoop.com
123.100.105.9	PTR	geoop.com
123.100.105.10	PTR	geoop.com
123.100.105.11	PTR	geoop.com
123.100.105.12	PTR	geoop.com
123.100.105.13	PTR	geoop.com
123.100.105.14	PTR	geoop.com
123.100.105.15	PTR	123-100-105-15.maxnet.net.nz
123.100.105.18	PTR	123-100-105-18.vocus.net.nz
123.100.105.21	PTR	123-100-105-21.vocus.net.nz
123.100.105.24	PTR	123-100-105-24.vocus.net.nz
123.100.105.24	A	www.xactsoftware.net
123.100.105.25	A	xactdemo.com
123.100.105.26	PTR	123-100-105-26.vocus.net.nz
123.100.105.33	A	*.dpod.com
123.100.105.34	PTR	123-100-105-34.vocus.net.nz
123.100.105.50	PTR	123-100-105-50.maxnet.net.nz
123.100.105.54	PTR	123-100-105-54.vocus.net.nz
123.100.105.57	PTR	123-100-105-57.maxnet.net.nz
123.100.105.58	PTR	123-100-105-58.vocus.net.nz
123.100.105.59	PTR	123-100-105-59.vocus.net.nz
123.100.105.63	PTR	123-100-105-63.maxnet.net.nz
123.100.105.74	PTR	123-100-105-74.vocus.net.nz
123.100.105.83	PTR	123-100-105-83.maxnet.net.nz
123.100.105.83	A	pocktvine.com
123.100.105.83	A	flipmind.com.au
123.100.105.87	PTR	123-100-105-87.vocus.net.nz
123.100.105.89	PTR	123-100-105-89.maxnet.net.nz
123.100.105.89	A	www.thesleepstore.co.nz
123.100.105.89	A	littlebirdbrands.com
123.100.105.95	PTR	123-100-105-95.vocus.net.nz
123.100.105.98	PTR	mail.homeforhire.com
123.100.105.98	A	homeforhire.com
123.100.105.98	A	queenstownluxury.co.nz
123.100.105.109	PTR	123-100-105-109.vocus.net.nz
123.100.105.117	PTR	123-100-105-117.vocus.net.nz
123.100.105.122	PTR	123-100-105-122.vocus.net.nz
123.100.105.127	PTR	123-100-105-127.vocus.net.nz
123.100.105.129	A	interviewdrive.com
123.100.105.129	A	interviewnz.com
123.100.105.142	A+PTR	ns1.livedns.co.nz
123.100.105.142	A	ns2.liveoffice.co.nz
123.100.105.142	A	ns2.livemail.co.nz
123.100.105.145	PTR	secondary.serversnack.net
123.100.105.146	PTR	secondary.serversnack.net
123.100.105.147	PTR	secondary.serversnack.net
123.100.105.147	A	nzwebhost.co.nz
123.100.105.148	PTR	secondary.serversnack.net
123.100.105.149	PTR	secondary.serversnack.net
123.100.105.149	A	pop4.strobe.net.nz
123.100.105.149	A	mail.strobe.net.nz
123.100.105.150	PTR	secondary.serversnack.net
123.100.105.151	PTR	secondary.serversnack.net
123.100.105.152	PTR	secondary.serversnack.net
123.100.105.153	PTR	secondary.serversnack.net
123.100.105.154	PTR	secondary.serversnack.net
123.100.105.155	PTR	secondary.serversnack.net
123.100.105.156	PTR	secondary.serversnack.net
123.100.105.157	PTR	secondary.serversnack.net
123.100.105.161	PTR	123-100-105-161.maxnet.net.nz
123.100.105.164	PTR	123-100-105-164.vocus.net.nz
123.100.105.170	PTR	123-100-105-170.vocus.net.nz
123.100.105.175	PTR	123-100-105-175.vocus.net.nz
123.100.105.186	PTR	123-100-105-186.maxnet.net.nz
123.100.105.191	PTR	123-100-105-191.vocus.net.nz
123.100.105.194	PTR	123-100-105-194.vocus.net.nz
123.100.105.205	PTR	123-100-105-205.vocus.net.nz
123.100.105.224	PTR	123-100-105-224.vocus.net.nz
123.100.105.229	PTR	123-100-105-229.maxnet.net.nz
123.100.105.229	A	www.scti.com.au
123.100.105.234	A	internationalstudent.co.nz
123.100.105.235	PTR	123-100-105-235.maxnet.net.nz
123.100.105.235	A	visitingnewzealand.co.nz
123.100.105.240	PTR	123-100-105-240.maxnet.net.nz
123.100.105.241	PTR	123-100-105-241.vocus.net.nz