Robtex

Up: 123.100.228.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 123.100.228.0/25
Down right: 123.100.228.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
123.100.228.2	PTR	sy.websitepulse.net
123.100.228.4	PTR	biante.biz
123.100.228.4	PTR	biante.com.au
123.100.228.10	PTR	munky.com.au
123.100.228.32	PTR	fountaincosmetics.com.au
123.100.228.33	PTR	fountainliving.com.au
123.100.228.33	PTR	fountaincosmetics.co.nz
123.100.228.35	PTR	horsemansshop.com.au
123.100.228.36	A	*.ecompress.net
123.100.228.36	A	ecompress.net
123.100.228.36	A	mail.ecompress.net
123.100.228.50	PTR	mx2.jigsaw.net.au
123.100.228.50	A	mx2.jigsaw.technology
123.100.228.50	A	ns2.jigsaw.net.au
123.100.228.52	PTR	microbe-srv-01.microbe.com.au
123.100.228.52	A	microbe.co.nz
123.100.228.52	A	anti-virus.net.au
123.100.228.58	A	nod32antivirus.com.au
123.100.228.58	A	esetnod32.com.au
123.100.228.61	A	topsecrets.com.au
123.100.228.62	A	mail.biglove.com.au
123.100.228.63	A	mail.jobsfirst.com.au
123.100.228.65	A	*.property8.com.au
123.100.228.76	PTR	www.outsourcingit.biz
123.100.228.76	PTR	www.ehunter.com.au
123.100.228.76	A	mail.getawebdeveloper.com.au
123.100.228.81	PTR	pixelwedge.com
123.100.228.81	A	redpepperdesign.net
123.100.228.81	A	mail.myprojex.com
123.100.228.95	PTR	www.lashgraphics.com.au
123.100.228.95	A	mail.blonderoom.com
123.100.228.95	A	mail.jannaadamstess.com
123.100.228.100	A	cherymotors.com.au
123.100.228.100	A	myalfaromeo.com.au
123.100.228.100	A	mychery.com.au
123.100.228.116	A	ahomeloancalculator.com.au
123.100.228.116	A	australiahomeloan.net.au
123.100.228.116	A	homeloancalculater.com.au
123.100.228.117	A	mail.mortgagerepaymentcalculator.com.au
123.100.228.117	A	selfemployedhomeloan.com.au
123.100.228.117	A	mortgageinsurancecalculator.com.au
123.100.228.170	A	lakemacquariecity.com.au
123.100.228.170	A	www.lakemac.com.au
123.100.228.170	A	lakemac.com.au
123.100.228.194	PTR	mail.rawnet.com.au
123.100.228.196	PTR	mail.rawnet.com.au
123.100.228.230	A	www.fix-it.com.au