Statistics & Reporting

View charts that highlight ARIN statistics, such as data about requested and allocated space, reserved space, and transfers. Data is aggregated by month for the current year. Additional statistics, including historical ARIN statistics and links to statistics of the other Regional Internet Registries, are also available.

Historical Whois Data (WhoWas)

The WhoWas service provides historical registration information for a given IP address or ASN. This service is available by request in the Downloads & Services section of ARIN Online. Requests are subject to approval and are covered by a Terms of Use (ToU) agreement.

ARIN Bulk Whois Data

ARIN provides Bulk Whois Data (a bulk copy of all objects in the ARIN Whois directory service) to organizations that will use the data for Internet operational or technical research purposes that are described in the “Bulk Whois Terms of Use.” You must submit a request form and agree to the ToU to receive access.