Robtex

Up: 37.19.80.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 37.19.88.0/22
Down right: 37.19.92.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
37.19.88.252	A	smtp.mapnaom-pr.com
37.19.88.252	A	mail.mapnaom-pr.com
37.19.88.253	A	smtp.mapnaom-pr.com
37.19.90.22	A+PTR	crm.64cis.net
37.19.90.62	A	ns1.64cis.com
37.19.90.62	A	64cis.net
37.19.90.62	A	ns2.64cis.com
37.19.90.65	A	ns1.64cis.net
37.19.90.102	PTR	mail.64cis.net
37.19.90.102	A	www.64cis.net
37.19.92.37	PTR	azaranind.com
37.19.92.37	A	pop3.tadbirsanaat.com
37.19.92.37	A	smtp.tadbirsanaat.com
37.19.92.53	PTR	mail.nimidco.com
37.19.92.53	A	mail.simidco.com
37.19.94.211	A	srv2-bankassiyaha.ma