Robtex

Up: 123.108.2.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 123.108.3.0/25
Down right: 123.108.3.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
123.108.3.21	PTR	123.108.3.21
123.108.3.21	A	pronet.co.jp
123.108.3.22	PTR	123.108.3.22
123.108.3.22	A	wrixon.willnet.ad.jp
123.108.3.22	A	www.sekiwakansai.co.jp
123.108.3.23	PTR	123.108.3.23
123.108.3.23	A	lactravel.com
123.108.3.23	A	arimacc.jp
123.108.3.24	A	shinryo-kobe.co.jp
123.108.3.25	PTR	123.108.3.25
123.108.3.25	A	ichinomiyapan.co.jp
123.108.3.26	PTR	123.108.3.26
123.108.3.26	A	pronet.jp
123.108.3.48	A	mail.well-field.co.jp
123.108.3.58	A	itnews.willnet.ad.jp
123.108.3.62	PTR	abnet.willnet.ad.jp
123.108.3.62	A	mail.tsb-yyg.ac.jp
123.108.3.62	A	www.tsb-yyg.ac.jp
123.108.3.70	A	jiten.willnet.ad.jp
123.108.3.79	A	xer.hj-shield.org
123.108.3.86	PTR	tokubai.biz
123.108.3.86	A	www.kk-tatsumi.net
123.108.3.86	A	mail.da-mail.jp
123.108.3.98	PTR	japan.secure.biz1.jp
123.108.3.98	A	arutakan.co.jp
123.108.3.98	A	super.asses.jcom.to
123.108.3.106	A+PTR	beadsbox.com
123.108.3.106	A	mail.beadsbox.com
123.108.3.110	PTR	secure11.willnet.org
123.108.3.110	A	mail.corporatedoctor.co.jp
123.108.3.110	A	gplan-arch.com
123.108.3.121	A+PTR	ns.empacket.jp
123.108.3.121	A	ns.empacket.com
123.108.3.124	PTR	123.108.3.124
123.108.3.124	A	mibyounomadoguchi.com
123.108.3.124	A	mail.mibyounomadoguchi.com
123.108.3.131	A	officino.co.jp
123.108.3.134	A+PTR	kunitachi-city.co.jp
123.108.3.134	A	mail.yoyoya.com
123.108.3.134	A	mail.5740005.com
123.108.3.142	PTR	win21.willnet.ad.jp
123.108.3.142	A	dessert-labo.com
123.108.3.142	A	mail.satorinouki.com
123.108.3.146	PTR	kisuke-mm.com
123.108.3.146	A	mail.kisuke-mm.com
123.108.3.146	A	rimagearts.willnet.ad.jp
123.108.3.148	PTR	123.108.3.148
123.108.3.148	A	mail.enjoy-shopping.net
123.108.3.148	A	mail.nipponfusso.com
123.108.3.149	PTR	123.108.3.149
123.108.3.149	A	mail.enjoy-shopping.net
123.108.3.154	A	kanehide.koushounin.biz
123.108.3.162	PTR	mail01.willnet.org
123.108.3.162	A	mail.adhoc-itc.com
123.108.3.162	A	mail.seikaen.jp
123.108.3.178	PTR	workon.willnet.ad.jp
123.108.3.178	A	schop-dan.com
123.108.3.178	A	mail.funky-baby.jp
123.108.3.182	A+PTR	taiyoushuppan.co.jp
123.108.3.182	A	mail.nakano-tms.com
123.108.3.182	A	mail.taiyoushuppan.co.jp
123.108.3.186	PTR	rindo21.willnet.ne.jp
123.108.3.186	A	mail.bike-ins.com
123.108.3.186	A	ddsystems.info
123.108.3.193	PTR	123.108.3.193
123.108.3.193	A	lucas-sedori02.com
123.108.3.194	PTR	123.108.3.194
123.108.3.195	PTR	vps.i-kentei.com
123.108.3.195	A	mail.cambodia-j.com
123.108.3.195	A	mail.injcc.com
123.108.3.202	PTR	server.ffa15.com
123.108.3.202	A	ffa15.com
123.108.3.202	A	fighters.ffa15.com
123.108.3.206	PTR	wrixon.willnet.ad.jp
123.108.3.206	A	mail.hasugaoka-kids.jp
123.108.3.206	A	parisyoku.jp
123.108.3.210	PTR	asahicc.com
123.108.3.210	A	www.deerpark-gc.com
123.108.3.210	A	puro-tech.com
123.108.3.222	A+PTR	win04.willnet.ad.jp
123.108.3.222	A	mail.myheart-clinic.jp
123.108.3.222	A	nacinfo.co.jp
123.108.3.226	PTR	123.108.3.226
123.108.3.237	A	anjo-jp.com
123.108.3.237	A	mail.anjo-jp.com
123.108.3.237	A	mail.uedadenki.net
123.108.3.242	PTR	da26.willnet.ad.jp
123.108.3.242	A	akstn.jp
123.108.3.242	A	mail.azuchi.net
123.108.3.246	PTR	da27.willnet.ad.jp
123.108.3.246	A	mail.ysposakaminoo.com
123.108.3.246	A	takaha-youchien.ed.jp
123.108.3.248	A	uemurasangyo.co.jp
123.108.3.249	PTR	123.108.3.249
123.108.3.249	A	tdb-net.com
123.108.3.250	PTR	123.108.3.250
123.108.3.250	A	secure-server.jp