Taiwan Network Information Center

TWNIC, also known as the Taiwan Network Information Center, functions as the national internet registry for Taiwan, overseeing the country‑code top‑level domain .tw and the allocation of IPv4 and IPv6 address resources within the territory. It provides domain name registration services to registrants, maintains the authoritative WHOIS database for .tw domains, and publishes the zone file that enables global resolution of .tw names. In addition to registration, TWNIC operates public DNS resolvers, most notably the Quad101 service identified by the prefix 101.101.101.0/24, which offers recursive DNS resolution to users in Taiwan and abroad. The organization also coordinates with regional registries such as the Asia‑Pacific Network Information Centre (APNIC) to ensure consistent policies for internet number resources. Through its registry functions, TWNIC supports the stability, security, and interoperability of Taiwan’s segment of the global internet infrastructure. It engages in policy development activities that address domain name governance, IP address management, and emerging technical considerations. TWNIC’s services are utilized by internet service providers, enterprises, academic institutions, and individual users who require a .tw presence or IP address allocations. The organization also engages in outreach activities to inform stakeholders about developments in domain name and IP address management.

As the designated registry for Taiwan, TWNIC serves a broad market that encompasses the entire Taiwanese internet community, ranging from large telecommunications carriers to small businesses and private individuals seeking .tw domain names or IP address blocks. While specific quantitative metrics such as the total number of registered domains or allocated address prefixes are not disclosed in the supplied material, the organization’s role places it at a critical juncture of national internet infrastructure. Distinguishing attributes of TWNIC include its specialization as a national internet registry, its formal liaison function with Taiwanese governmental bodies on internet resource matters, and its proven operational expertise in running DNS services that have been exposed to real‑world routing events. Notably, the May 8 2019 BGP hijack that redirected Quad101 traffic through an unauthorized Brazilian autonomous system for approximately three and a half minutes underscored both the visibility of TWNIC’s DNS infrastructure and the highlighted systemic vulnerabilities in global routing infrastructure. Structurally, TWNIC operates as a non‑profit entity, governed by a board composed of representatives from academic, industry, and stakeholder communities. Its membership in APNIC allows TWNIC to participate in regional policy formulation and to align its practices with international standards for internet number resource management. Together, these characteristics position TWNIC as a key steward of Taiwan’s digital ecosystem, balancing technical service delivery with policy coordination and security awareness.