Robtex

Up: 197.237.16.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 197.237.24.0/22
Down right: 197.237.28.0/22

IP	Type	Hostname
197.237.24.2	PTR	197.237.24.2.wananchi.com
197.237.25.104	PTR	197.237.25.104.wananchi.com
197.237.25.124	PTR	197.237.25.124.wananchi.com
197.237.25.141	PTR	197.237.25.141.wananchi.com
197.237.27.47	PTR	197.237.27.47.wananchi.com
197.237.27.59	PTR	197.237.27.59.wananchi.com
197.237.27.250	PTR	197.237.27.250.wananchi.com
197.237.28.149	PTR	197.237.28.149.wananchi.com
197.237.28.166	PTR	197.237.28.166.wananchi.com
197.237.28.166	A	salafrica.com
197.237.28.178	PTR	197.237.28.178.wananchi.com
197.237.29.2	PTR	197.237.29.2.wananchi.com
197.237.29.118	PTR	197.237.29.118.wananchi.com
197.237.31.56	PTR	197.237.31.56.wananchi.com
197.237.31.59	PTR	197.237.31.59.wananchi.com
197.237.31.122	PTR	197.237.31.122.wananchi.com
197.237.31.138	PTR	197.237.31.138.wananchi.com
197.237.31.161	PTR	197.237.31.161.wananchi.com