Robtex

Up: 196.41.40.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 196.41.40.0/23
Down right: 196.41.42.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
196.41.40.62	PTR	mail.egrouptz.com
196.41.40.66	A	mail.adeptchambers.com
196.41.40.106	A	mail.alphamed.biz
196.41.40.106	A	mail.salamapharma.com
196.41.40.238	A+PTR	apps.aar.co.tz
196.41.41.18	A+PTR	speed.raha.com
196.41.41.18	A+PTR	speedtest.raha.com
196.41.42.70	PTR	mail.utsstz.com
196.41.42.70	A	mail.utss.co.tz
196.41.42.98	A+PTR	mail.tls.or.tz
196.41.42.110	A+PTR	mail.mwananchi.co.tz
196.41.42.110	A	mail2.mwananchi.co.tz
196.41.42.110	A	mail.thecitizen.co.tz
196.41.42.234	PTR	mail.meac.go.tz
196.41.43.91	A	ewmail.ewura.go.tz
196.41.43.92	PTR	mail.ewura.go.tz
196.41.43.122	A	mail.immma.co.tz
196.41.43.195	A	mail.startimes.co.tz
196.41.43.246	A+PTR	mail.gorocket.co
196.41.43.248	A	boostbucket.com
196.41.43.248	A	mail.boostbucket.com
196.41.43.252	A+PTR	gorocket.co