VNET Group
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VNET Group (formerly known as 21Vianet, NASDAQ: VNET) is the largest private, carrier-neutral internet data center services provider in China, offering colocation, managed hosting, and wholesale data center capacity to enterprise, cloud, and internet customers. As of 2024, the company reported operating over 50 data centers in more than 30 Chinese cities, with wholesale IDC capacity of 907MW and over 49,000 retail IDC cabinets in service, concentrated in hyperscale clusters across the Beijing-Tianjin-Hebei region, the Yangtze River Delta, and the Guangdong-Hong Kong-Macao Greater Bay Area. Founded in 1999 and headquartered in Beijing, VNET has increasingly pivoted its wholesale business toward AI infrastructure, building purpose-designed AI Data Center (AIDC) campuses — including a flagship node in Huailai (Hebei) and a large “Green G-watt AIDC” cluster in Ulanqab, Inner Mongolia — aimed at large-model training and inference workloads for Chinese cloud and internet giants. The company has also drawn strategic capital from investors including Blackstone, Goldman Sachs, and Shandong Hi-Speed Holdings, and continues to expand its wholesale IDC footprint to meet surging domestic AI compute demand.
VNET Group has a confirmed data center presence at the following locations:
FACILITY OPERATOR
Phone: +852 2187 7600
VNET Group Data Center Locations
- Beijing, China Beijing Core Business District Data Center CARRIER-NEUTRAL PENDING REVIEW
Per VNET Group's own site: VNET states this Beijing facility is located in the core business district with convenient transportation and only 18 kilometers from Beijing Capital International Airport. - Guangzhou, China GZ02-04 Data Center CARRIER-NEUTRAL PENDING REVIEW
The GZ02-04 site is noted for its proximity — about 3 kilometers — to the Jing-Shen Expressway, giving it strong regional transport and fiber connectivity. - Shenzhen, China Shenzhen Data Center PENDING REVIEW
- Zhangjiakou, China Huailai Super Artificial Intelligence Data Center (AIDC) NodeAI DATA CENTER PENDING REVIEW
The Huailai AIDC node is designated a national integrated big-data collaborative innovation demonstration project under China's "East-to-West Calculation" strategy. - Ulanqab, China Green G-watt AIDC Super Intelligent Computing Flagship BaseAI DATA CENTER PENDING REVIEW
Independent reporting identifies VNET as one of only a handful of named operators (alongside Alibaba, UCloud, Kuaishou, and Zhonglian Data) with computing projects underway in the Ulanqab cluster as of 2026. - Taicang, China Taicang Big Data Intelligent Computing Center BaseAI DATA CENTER PENDING REVIEW
This site was recognized by the China Academy of Information and Communications Technology (CAICT) as a typical case of coordinated development of computing power and electricity. - Shanghai, China VNET Shanghai Data Center TIER III+ PENDING REVIEW
Per VNET Group's own site: VNET states this Shanghai-area park is built to Uptime Institute Tier III+ standards and sits strategically west of the G60 Science and Technology Innovation Corridor, near the Shanghai Ring Expressway. - Chengdu, China VNET Chengdu Data Center · 028-83352511 PENDING REVIEW
- Ningbo, China VNET Ningbo Data Center TIER III+ CARRIER-NEUTRAL PENDING REVIEW
Independent industry reporting describes this facility as a multi-floor Tier III+ design with modular pods supporting 8–10kW per rack standard density. - Hong Kong, Hong Kong Hong Kong Data Center / Hong Kong Branch · +852 2187 7600 PENDING REVIEW
By Continent
AI Data Centers
VNET has begun building AI-specific data center capacity alongside its traditional wholesale colocation business. Its Huailai AIDC node in Hebei is explicitly positioned as a high-density GPU and large-model training/inference site, part of China's national "East-to-West Computing" infrastructure initiative, while its Ulanqab campus in Inner Mongolia — marketed as the "Green G-watt AIDC Super Intelligent Computing Flagship Base" — is designed around gigawatt-scale, green-energy-powered clusters for AI training workloads, in a region also drawing AI-focused projects from Alibaba, Kuaishou, and DeepSeek.
- Zhangjiakou, China Huailai Super Artificial Intelligence Data Center (AIDC) Node AI DATA CENTER PENDING REVIEW
The Huailai AIDC node is designated a national integrated big-data collaborative innovation demonstration project under China's "East-to-West Calculation" strategy. - Taicang, China Taicang Big Data Intelligent Computing Center Base AI DATA CENTER PENDING REVIEW
This site was recognized by the China Academy of Information and Communications Technology (CAICT) as a typical case of coordinated development of computing power and electricity. - Ulanqab, China Green G-watt AIDC Super Intelligent Computing Flagship Base AI DATA CENTER PENDING REVIEW
Independent reporting identifies VNET as one of only a handful of named operators (alongside Alibaba, UCloud, Kuaishou, and Zhonglian Data) with computing projects underway in the Ulanqab cluster as of 2026.
Common Questions
Does VNET Group offer AI/GPU-optimized data center infrastructure?
Yes. VNET operates the Huailai Super Artificial Intelligence Data Center (AIDC) node in Hebei, described by the company as a demonstration base for high-density GPU and large-model AGI training and inference, and is building the large-scale "Green G-watt AIDC Super Intelligent Computing Flagship Base" in Ulanqab, Inner Mongolia, aimed at gigawatt-class AI compute clusters for cloud and internet customers.
How many data centers does VNET Group operate and where?
As of 2024, VNET states it operates over 50 data centers across more than 30 cities in China, with its heaviest concentration in Beijing, Shanghai (via Taicang/Kunshan area sites), Guangzhou, Shenzhen, Chengdu, and emerging AI-focused clusters in Hebei (Huailai/Zhangjiakou) and Inner Mongolia (Ulanqab).
Is VNET Group a colocation company or a cloud provider?
VNET is primarily a carrier-neutral colocation and wholesale data center provider; it also resells and hosts third-party cloud services (such as Microsoft Azure and Office 365 in China) as a managed hosting partner, but it is not itself building a proprietary hyperscale public cloud platform.
What is VNET's wholesale IDC capacity?
VNET reported wholesale IDC capacity of 907MW and retail IDC cabinets exceeding 49,000 as of 2024, alongside network port capacity described as "4T+" and high-speed cloud connect capacity of "1T+."
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