Robtex

Up: 41.21.248.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 41.21.248.0/23
Down right: 41.21.250.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
41.21.248.2	A+PTR	mail.stabilisnst.co.za
41.21.248.42	PTR	mail.azuraltd.com
41.21.248.43	PTR	mail.azuraltd.com
41.21.248.44	PTR	mail.azuraltd.com
41.21.248.45	PTR	mail.azuraltd.com
41.21.248.45	A	mail.digitalwayint.com
41.21.248.45	A	mail.intcnslt.com
41.21.248.46	PTR	mail.azuraltd.com
41.21.249.29	A+PTR	mail.greensky.co.za
41.21.250.11	A	mail.affies.co.za