ns1.isp.co.za has one IP number , which also has a corresponding reverse pointer. ns1.za.uu.net and ns1.iafrica.com point to the same IP. ispartners.co.za use this as a nameserver. 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. ns1.isp.co.za is hosted on a server in South Africa.