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APNIC Whois

Operator: APNIC (Asia Pacific Network Information Centre), Australia

Official registry for IP addresses and AS numbers in the Asia-Pacific region, complemented by WhoWas historical records.

Technical Infrastructure

Open website

Product

APNIC Whois is the current resource registry for Asia-Pacific. WhoWas provides separate public access to registration history from 2008 onwards.

Availability and source date

Active

As of: 16 October 2026.

No functionality test has been performed.

Use in OSINT research

Provides registered resource holders and network contacts for IP addresses and AS numbers. WhoWas shows previous registration records.

Queries

InputResultResult type
IP addressRegistered holder of the IP address range and network contacts. WhoWas adds previous registration records from 2008 onwards.
Retrieved
ASNRegistered holder and contacts for the AS number. WhoWas adds previous registration records from 2008 onwards.
Retrieved

Features

  • Searches current registration data for IP address ranges and AS numbers.
  • Shows resource holders, allocation dates and registered network contacts.
  • Enables advanced searches for registry objects and contact identifiers.
  • Shows previous registration records from 2008 onwards through WhoWas.

Categories

  • Technical Infrastructure
  • IP & ASN

Coverage

Geographical coverage

Asia-Pacific

Dataset

Official APNIC registrations of IP address ranges and AS numbers in the Asia-Pacific region. WhoWas contains historical registration records from 2008 onwards.

Access

Requirements

Public search interfaces without an account. WHOIS queries are also possible using an existing WHOIS client. Bulk retrieval requires a signed APNIC usage agreement.

Export

WhoWas provides data through a public API. Bulk downloads of WHOIS data are available only under an agreement with APNIC.

Provider

APNIC (Asia Pacific Network Information Centre)

Country of establishment

Australia

Interfaces

API

Available. Public WhoWas API as an RDAP extension. Experimental specification, with no commitment to stable interfaces. Current WHOIS data is also accessible through the WHOIS protocol.

MCP

Not documented. No MCP server is documented in the WHOIS and WhoWas materials reviewed.

AI agents

Not documented. No integration with AI agents is documented in the WHOIS and WhoWas materials reviewed.

Usage note

APNIC restricts search results to operational network purposes and excludes commercial use and marketing.

Limitations

  • Covers APNIC resources in the Asia-Pacific region, not general worldwide domain WHOIS.
  • WhoWas is experimental; its API specification may change incompatibly.
  • Registered contacts are maintained by the resource holders themselves.

Guides and practical reports

Sources

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