# China Telecom network hosts 32 barred Nvidia B300 chips in leak

*Lava detected 32 export-controlled Blackwell GPUs via exposed telemetry tools, prompting Nvidia to dismiss diversion volumes as under half a percent.*

**Published:** October 24, 2026  
**By:** Wei Zhang  
**Section:** Semiconductors & AI Hardware — China  
**Format:** Breaking  
**Confidence:** medium  
**Source:** https://eastasiabrief.com/semiconductors/china-telecom-network-hosts-32-barred-nvidia-b300-chips-895  
**Publisher:** East Asia Brief (https://eastasiabrief.com/)

---

## What to know

- Lava detected 32 barred Nvidia B300 GPUs on China Telecom IP blocks Oct. 22
- Nvidia dismissed leak volume Oct. 23 as under 0.5% of controlled shipments
- Operators face a Nov. 15 compliance window to patch exposed DCGM exporters

![A technician wearing gloves checks cabling connected to hardware installed in a server rack inside a data center. (AI-generated image)](https://eastasiabrief.com/media/2026-10-24-f70160aec154.webp)
*A technician wearing gloves checks cabling connected to hardware installed in a server rack inside a data center. (AI-generated image)*

Nvidia confirmed Oct. 23 that 32 barred Blackwell Ultra B300 accelerators were detected operating across internet addresses registered to state carrier China Telecom, calling the diversion a non-factor.

The discovery marks the first documented appearance of Nvidia's flagship Blackwell silicon linked to Chinese state network infrastructure. United States export controls prohibit shipments of the advanced processors to China without an explicit licence from the Department of Commerce.

*The rest of this briefing is for members. Creating an account is free. [Continue reading](https://eastasiabrief.com/semiconductors/china-telecom-network-hosts-32-barred-nvidia-b300-chips-895).*

---

Cite as: East Asia Brief, "China Telecom network hosts 32 barred Nvidia B300 chips in leak," October 24, 2026. https://eastasiabrief.com/semiconductors/china-telecom-network-hosts-32-barred-nvidia-b300-chips-895