Robtex

Up: 220.245.138.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 220.245.138.0/25
Down right: 220.245.138.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
220.245.138.2	A+PTR	220-245-138-2.tpgi.com.au
220.245.138.2	A	mail.karstens.com.au
220.245.138.19	A	mail.salespreso.com
220.245.138.49	A+PTR	220-245-138-49.tpgi.com.au
220.245.138.49	A	mail.britex.com.au
220.245.138.114	A+PTR	mail.mwlomax.com.au
220.245.138.150	A	mail.farrierswier.com.au
220.245.138.158	A+PTR	220-245-138-158.tpgi.com.au
220.245.138.158	A	apmdns2.auspm.com
220.245.138.158	A	smtp2.auspm.com
220.245.138.161	A+PTR	220-245-138-161.tpgi.com.au
220.245.138.161	A	gslb-ns1.regis.com.au
220.245.138.164	A+PTR	220-245-138-164.tpgi.com.au
220.245.138.164	A	mail01.gslb.regis.com.au
220.245.138.171	A+PTR	220-245-138-171.tpgi.com.au
220.245.138.171	A	gslb-ns2.regis.com.au
220.245.138.206	A	mail.oppeus.com
220.245.138.210	PTR	220-245-138-210.tpgi.com.au
220.245.138.210	A	mail2.resolvesoftware.com.au
220.245.138.254	A+PTR	220-245-138-254.tpgi.com.au
220.245.138.254	A	smtp.tastychips.com.au