APNIC

APNIC (Asia-Pacific Network Information Centre) is the Regional Internet Registry (RIR) responsible for the distribution and registration of IP address blocks and Autonomous System Numbers (ASNs) in the Asia-Pacific region. The APNIC WHOIS database is the authoritative source for IP address allocation records covering 56 economies across Asia and the Pacific.

For OSINT investigators, APNIC is the primary reference when an investigation involves IP addresses in the Asia-Pacific region. When a suspicious IP address originates from this region, the APNIC WHOIS database provides the authoritative record of which organization holds the allocation, their registered contact information, abuse reporting contacts, and the network block structure.

IP address ownership investigation through APNIC reveals the organizational hierarchy behind an IP: the regional allocation to an ISP or organization, potentially with sub-allocations to downstream customers. Understanding whether an IP belongs directly to a major ISP (as a customer address in a dynamic pool) or to a specific organization with a dedicated allocation is critical for determining the value of legal process targeting.

Abuse contact information in APNIC records is directly actionable for incident response and law enforcement cooperation. The abuse@ contact for each registered network block is the correct reporting destination for malicious activity originating from that network.

APNIC WHOIS also provides network range data (CIDR notation) that helps investigators understand the full IP block associated with a specific organization — relevant when investigating infrastructure clustering or preparing network-level blocking recommendations.

For threat intelligence work, understanding whether a malicious IP belongs to a dedicated hosting provider, cloud platform (AWS, Alibaba Cloud), or consumer ISP significantly affects attribution confidence and the likely mechanism for obtaining subscriber records through legal process.

The APNIC database covers Australia, China, Japan, India, South Korea, Southeast Asia, and the broader Pacific — any investigation with regional components should begin IP queries here.

Document the IP queried, the network block ownership, registered organization, country code, and abuse contact retrieved from APNIC WHOIS with the query timestamp.