ns2.isp.co.za has one IP number , which also has a corresponding reverse pointer. ns2.za.uu.net and ns2.iafrica.com point to the same IP. isp.co.za is delegated to two nameservers, however both delegated nameservers are missing in the zone. All nameservers are at iafrica.com. They are on the same IP network. ns2.isp.co.za is hosted on a server in South Africa.