IT Architects Alliance

Nov 28, 2019 · Industry Insights

Why the World’s IPv4 Addresses Ran Out and What It Means for the Future

On November 25, 2019, the last remaining IPv4 addresses were allocated by RIPE NCC, marking the global exhaustion of the 4.3 billion‑address pool; the article recounts the regional allocation timeline, the role of the five RIRs, and highlights ongoing IPv6 adoption, especially in China.