What is a COHO handle?
The number used to reference CORE name server host records. Name servers are required to make a domain functional and are usually provided by an ISP. CORE domains may have from zero to twelve name servers. The same name server may be used on many domain names, so that changing the information on one handle automatically updates the information for all associated domains. COHO handles all include a hostname and IP address, and may also include a technical contact. Since only one COHO handle is allowed for each hostname and IP address, the name or IP may be used instead. You may modify COHO handles through our host form. It is not necessary to create a COHO handle before using a name server, as this will be done automatically if it is already known to InterNIC, or if you include both the hostname and IP address.