What Is the Meaning of IP Administrator WHOIS Information?

An IP WHOIS query returns information organized into several fields. Below are descriptions of the common fields you might see:

Main Network Block (inetnum)

• IP Address Range: The block of IP addresses allocated by the Internet Assigned Numbers Authority (IANA) that this record describes.
• Network Name (netname): The unique name assigned to this network block, e.g., CHINANET-HB.
• Description: Detailed information about the network, including the provider's full name, physical address, and country.
• Country: The two-letter country code (e.g., CN for China).
• Administrative Contact (admin-c): A unique code (handle) that links to the administrator's full contact record.
• Technical Contact (tech-c): A unique code (handle) that links to the technical contact's full record.
• Maintainer (mnt-by): A code identifying the organization authorized to make changes to this record.
• Status: The current allocation status of the IP block (e.g., ASSIGNED).
• Last Modified (modified): The timestamp of the last time the record was changed.
• Source: The registry (like APNIC or ARIN) where this data is stored.

Organization Details

• Organisation: The official name of the company or entity.
• Address: The contact's physical mailing address.
• Email: The contact email address.
• Abuse Complaint Email (abuse-mailbox): A specific email for reporting network abuse.
• Incident Response Team (irt): A code that links to the contact details for a security incident response team.

Contact Role Details

• Role: Describes the function of a contact, such as "Network Administrator."
• Phone: The contact's phone number.
• Fax: The contact's fax number.
• NIC Handle (nic-hdl): The unique ID for this specific contact record.
• Notify: An email address that receives notifications about changes to the record.

Individual Person Details

• Person: The name of an individual contact person.
• Phone: The individual's contact phone number.
• Email: The individual's contact email address.