Robtex

Up: 123.108.0.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 123.108.1.0/25
Down right: 123.108.1.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
123.108.1.1	PTR	ip-123-108-1-1.altaway.com
123.108.1.6	PTR	123.108.1.6
123.108.1.106	PTR	ns1.willnet.ne.jp
123.108.1.106	A	ns1.dnsserver-jp.net
123.108.1.106	A	ns3.willnet.ne.jp
123.108.1.116	PTR	123.108.1.116
123.108.1.116	A	mail.netshonin.jp
123.108.1.116	A	mail.vmxgmail.com
123.108.1.118	PTR	123.108.1.118
123.108.1.118	A	mail.sennenoukoku.jp
123.108.1.118	A	ns.sennenoukoku.jp
123.108.1.128	PTR	123.108.1.128
123.108.1.128	A	www.bingo-asp.jp
123.108.1.128	A	district76.org
123.108.1.129	PTR	123.108.1.129
123.108.1.131	A	star2009.jp
123.108.1.131	A	mail.star2009.jp
123.108.1.136	A	serv136.funaiyukio.com
123.108.1.138	A	mail.avility.info
123.108.1.138	A	chubby-auto.jp
123.108.1.138	A	mail.infrontrecord.com
123.108.1.140	PTR	123.108.1.140
123.108.1.140	A	www.mmj-pro.co.jp
123.108.1.140	A	mmj-pro.co.jp
123.108.1.141	PTR	123.108.1.141
123.108.1.141	A	hokuseisns.com
123.108.1.141	A	hekisonjuku.jp
123.108.1.142	A	thanwords.net
123.108.1.142	A	mail.thanwords.net
123.108.1.158	PTR	rescue-center.willnet.ad.jp
123.108.1.158	A	mail.rescue-center.jp
123.108.1.158	A	mail.datarescue.jp
123.108.1.164	PTR	123.108.1.164
123.108.1.167	PTR	jkk-org.or.jp
123.108.1.170	PTR	123.108.1.170
123.108.1.175	A	elveplans.jp
123.108.1.175	A	mail.elveplans.jp
123.108.1.179	A	mail.toyspirits.com
123.108.1.182	A	linux-vz01.willnet.ad.jp
123.108.1.185	A	mail.toride-break.com
123.108.1.185	A	toride-break.com
123.108.1.189	PTR	123.108.1.189
123.108.1.189	A	www.nanchatte.com
123.108.1.189	A	yaya3.hima.gr.jp
123.108.1.191	PTR	parangon.jp
123.108.1.191	A	mail.sakura-iera.jp
123.108.1.191	A	mail.parangon.jp
123.108.1.193	A	amys-cafe.com
123.108.1.193	A	mail.amys-cafe.com
123.108.1.194	PTR	123.108.1.194
123.108.1.194	A	www.process-ma.com
123.108.1.194	A	mail.process-ma.com
123.108.1.195	PTR	jrmk.co.jp
123.108.1.195	A	mail.jrmk.co.jp
123.108.1.201	PTR	123.108.1.201
123.108.1.201	A	active-db.jp
123.108.1.201	A	mail.active-db.jp
123.108.1.203	PTR	123.108.1.203
123.108.1.203	A	betsubara.mobi
123.108.1.203	A	mail.smaphostyle.info
123.108.1.204	PTR	123.108.1.204
123.108.1.204	A	ss-navi.jp
123.108.1.204	A	taxi-king.jp
123.108.1.207	A	www.taxii.net
123.108.1.207	A	taxii.net
123.108.1.207	A	three-s-web.co.jp
123.108.1.215	PTR	butsugusan5.com
123.108.1.217	PTR	123.108.1.217
123.108.1.217	A	dns201.fc1.jp
123.108.1.217	A	condom.jp
123.108.1.225	A+PTR	adds.co.jp
123.108.1.225	A	ns.adds.jp
123.108.1.225	A	mail.adds.jp
123.108.1.227	PTR	azoo.jp
123.108.1.228	PTR	123.108.1.228
123.108.1.230	PTR	123.108.1.230
123.108.1.230	A	sugai-taxi.co.jp
123.108.1.230	A	mail.sugai-taxi.co.jp
123.108.1.233	PTR	123.108.1.233
123.108.1.233	A	ryobanbaibai.com
123.108.1.233	A	mail.ryobanbaibai.com
123.108.1.237	PTR	nsm2.net
123.108.1.239	PTR	123.108.1.239
123.108.1.239	A	ec-masters.net
123.108.1.239	A	shohei432.com
123.108.1.240	A	hepppy.com
123.108.1.240	A	coneconnect.com
123.108.1.240	A	mail.hepppy.com
123.108.1.241	PTR	luna2.cosmos-ss.co.jp
123.108.1.241	A	mail.fv-r.net
123.108.1.241	A	fv-r.net
123.108.1.242	PTR	123.108.1.242
123.108.1.242	A	mail.utack.jp
123.108.1.242	A	utack.jp
123.108.1.243	PTR	123.108.1.243
123.108.1.243	A	emmanet.jp
123.108.1.243	A	mail.emmanet.jp
123.108.1.246	PTR	naganoken-gakushuryoko.net
123.108.1.246	A	mail.naganoken-gakushuryoko.net
123.108.1.247	PTR	kodomoblog.com
123.108.1.247	A	i-kentei.com
123.108.1.247	A	mail.i-kentei.com