China’s Ambitious IPv6 Rollout: Goals, Timeline, and Impact by 2025
China has set aggressive IPv6 adoption targets, aiming for hundreds of millions of users and devices by 2023 and 2025, mandating IPv6‑only routers and networks, and building a nationwide test infrastructure to achieve a single‑stack internet within five years.
Guidance: Chinese governments encourage users to replace routers with new models that support the future IPv6 network stack.
The Central Cyberspace Administration and related agencies have issued a large‑scale IPv6 adoption plan.
By the end of 2023, China aims to have 700 million active IPv6 users and 200 million IoT devices using the protocol. Home wireless routers must enable and fully support IPv6 by default, 30% of government websites will use IPv6, and other consumer devices must operate on IPv6 networks. Half of mobile traffic is expected to use the newer protocol, and 15% of metro‑area network traffic will be routed via IPv6.
New networks will be prohibited from using IPv4 after 2023, marking a decisive step toward a nationwide single‑stack IPv6 network.
Looking ahead to 2025, the vision includes 800 million IPv6 users, 400 million IoT devices, 70% of mobile traffic carried over IPv6, mandatory IPv6 for government websites, 20% of metro‑area traffic using IPv6, and half of household routers supporting the protocol. By then, 95% of major commercial websites and mobile applications will provide IPv6 support.
The notification notes that China expects to need five years to complete IPv6 deployment and achieve a “single‑stack” network.
China already possesses the infrastructure for such testing. In April 2021, the nation launched a “Future Internet Test Infrastructure” comprising 31 nodes connected by 200 Gbps links, with IPv6 testing as a primary focus.
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