The APNIC Whois Database details of IP addresses and AS numbers originally allocated by APNIC. It shows the organizations that hold the resources, where the allocations were made, and contact details for the networks. Users can search the whois for information pertaining to these resources, for network troubleshooting, or helping to track network abuse. The organizations that hold those resources are responsible for updating their information in the database. Internet number resources must be properly and accurately registered to fulfil the goals of addressing policy as outlined by the Public Technical Identifiers (PTI), who are responsible for the operation of the Internet Assigned Numbers Authority (IANA) functions.