Robtex

Up: 203.58.28.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 203.58.28.0/25
Down right: 203.58.28.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.58.28.1	PTR	syd14-56k-001.tpgi.com.au
203.58.28.1	A	cloverbuilt.com.au
203.58.28.7	PTR	syd14-56k-007.tpgi.com.au
203.58.28.7	A	thehomeoffinancialplanning.com
203.58.28.7	A	thehomeoffinancialplanning.net
203.58.28.10	A	jaycollierphotography.com
203.58.28.19	PTR	mail.iec.com.au
203.58.28.29	PTR	mail.iec.com.au
203.58.28.46	PTR	alyssia.tpgi.com.au
203.58.28.46	A	mail.tepc.com.au
203.58.28.46	A	mail.plasback.com.au
203.58.28.97	PTR	linkerbarker.com.au
203.58.28.162	PTR	mail.bcac.com.au
203.58.28.202	A	syd14-56k-202.tpgi.com.au
203.58.28.240	A	syd14-56k-240.tpgi.com.au
203.58.28.254	PTR	smtp.ljh.com.au