Robtex

Up: 220.233.22.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 220.233.23.0/25
Down right: 220.233.23.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
220.233.23.7	PTR	7.23.233.220.static.exetel.com.au
220.233.23.22	A+PTR	22.23.233.220.static.exetel.com.au
220.233.23.24	PTR	24.23.233.220.static.exetel.com.au
220.233.23.24	A	houdinilocksmiths.com.au
220.233.23.25	A	stavesopenmic.com
220.233.23.66	A+PTR	66.23.233.220.static.exetel.com.au
220.233.23.87	A	ns1.nablasecurity.com
220.233.23.113	PTR	113.23.233.220.static.exetel.com.au
220.233.23.113	A	applecross13.info
220.233.23.119	A+PTR	119.23.233.220.static.exetel.com.au
220.233.23.119	A	mail.x005.com
220.233.23.137	PTR	137.23.233.220.static.exetel.com.au
220.233.23.137	A	eiltd.co.nz
220.233.23.137	A	nzsvr.net
220.233.23.138	PTR	138.23.233.220.static.exetel.com.au
220.233.23.156	A+PTR	156.23.233.220.static.exetel.com.au
220.233.23.156	A	mandyandgreg.com
220.233.23.156	A	mail.mandyandgreg.com
220.233.23.160	A+PTR	160.23.233.220.static.exetel.com.au
220.233.23.160	A	ns2.dpl.com.au
220.233.23.171	A+PTR	171.23.233.220.static.exetel.com.au
220.233.23.193	A+PTR	193.23.233.220.static.exetel.com.au
220.233.23.193	A	mail.addstar.com.au
220.233.23.223	A+PTR	223.23.233.220.static.exetel.com.au
220.233.23.245	A+PTR	245.23.233.220.static.exetel.com.au