ns1.zabco.net has one IP number , which also has a corresponding reverse pointer. ovg.ca, kitz.ca, pooch.ca, itsg.org, nimj.org and at least 100 other hosts use this as a nameserver. root.ns1.zabco.net are subdomains to this hostname. zabco.net is a domain controlled by two nameservers at zabco.net themselves. They are on the same IP network. Incoming mail for zabco.net is handled by one mailserver having a total of two IP numbers. They are on the same IP network. zabco.net has one IP number. ns1.zabco.net is hosted on a server in United States.