The APNIC Whois Database

APNIC maintains a database of IP address and AS number allocations in the Asia Pacific region. For more information, see the general APNIC FAQ.

How to search the database

You can search the database via the web or via command line interface.

Whois web search	Whois client
Example: 203.37.255.97 [Advanced search options]	Direct your whois client to whois.apnic.net Example: whois -h whois.apnic.net 203.37.255.97

Database news

Four-byte AS numbers

On 1 January 2007, APNIC began processing applications for four-byte AS numbers. Please see:

• ASN resource guide for more information.
• Attributes of APNIC Whois Database objects for details about syntax changes.

Protecting historical records in the APNIC Whois Database

To ensure the integrity of information in the APNIC Whois Database, on 14 December 2004, the maintainer of all historical resources in the APNIC Whois Database was changed to the APNIC-HM maintainer. APNIC will not update historical information in the APNIC Whois Database until the resource holder can prove the organisation's right to the resources and has a formal agreement with APNIC as a member or non-member account holder. For more information see:

• Policies for historical Internet resources in the APNIC Whois Database
• Guide to the maintenance of historical Internet resources

Privacy of customer assignments

The APNIC Secretariat recently implemented the database changes outlined in prop-007-v001. This means that as of 30 September 2004, LIRs can now decide whether or not their customer registration details will be publicly visible in the APNIC Whois Database. Database queries on customer assignments not designated 'public' will now be directed to the upstream provider's registration information.

These changes do not affect portable allocations and assignments. For more information, see:

• Privacy of customer assignments FAQs

Other news

• From 5 January 2004, APNIC allocation and assignment reports will be produced in a new format. For information on the new format, see:
• RIR statistics exchange format
• Database cleanup project
• Whois v3 upgrade guide

Database information

Help searching the database	Learn about the database	Updating database information
Reporting spamming and hacking Search help for the web-based database Database query options RIR Comparative policy overview	Overview of database objects Attributes of database objects Database object templates	Updating information in the database Database objects resource guide The APNIC Test Whois Database - learn to use the database software
Acceptable database use	Historical records	Data and statistics
Database copyright Data acceptable use agreement [pdf]	Modifying objects formerly in the AUNIC database Early Registration Transfer Project	APNIC allocation and assignment reports [ftp] APNIC resource ranges Regional Internet Registries' resource ranges
Database development	Whois links
APNIC DB SIG Policy development process RIPE Database Working Group	World Whois databases - RIR and NIR whois databases Geek tools whois proxy

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