Skip to content
Largest data center in the world

Table of Contents

    15 Largest Data Centers in the World

    Every app you open, video you stream, or file you save is backed by a data center somewhere. But some aren’t just big, they are absolute monsters.

    These facilities are the backbone of modern tech, built to handle everything from cloud storage to national security. Let’s cut through the noise and look at the biggest data centers in the world and what makes them impossible to ignore.

    This list ranks the biggest data centers in operation today by total reported floor area. By that measure, the largest is China Telecom’s Inner Mongolia Information Park in Hohhot, at roughly 10.7 million square feet. 

    The list covers existing, operating facilities only, not projects still under construction. Reported floor areas for several of the largest campuses come from operators or state media.

    What Is the Biggest Data Center in the World?

    The China Telecom Inner Mongolia Information Park near Hohhot, China, is the worlds biggest data center. 

    The complex covers approximately 1 million square meters, or 10.7 million square feet, and has a reported power capacity of around 150 megawatts. The total area includes data halls and supporting buildings, so the exact amount of active server space is not publicly confirmed.

    By projected computing capacity, Meta’s Hyperion data center campus in Louisiana may eventually take the lead. Meta expanded the project to a planned 5 gigawatts, but the campus remains under construction and cannot yet be classified as the largest operational data center.

    15 Largest Data Centers in the World

    Here’s a detailed list of the 15 largest data centers worldwide, ranked from the smallest to the largest. The biggest data center is at the bottom, so keep scrolling to see it!

    For a quick comparison, we’ve also included a table below:

    15 Largest Data Centers in the World Comparison Table

    RankData Center / CampusOperatorLocationArea (sq ft)Area (sq m)Power Capacity
    15Yotta NM1Yotta InfrastructureNavi Mumbai, India820,00076,18050 MW
    14QTS Metro Data CenterQTS RealtyAtlanta, Georgia, USA970,00090,11670-130 MW
    13Tulip Data CenterTulip / STT GDCBengaluru, India1.0M92,900100 MW
    12Lakeside Technology CenterDigital RealtyChicago, Illinois, USA1.1M102,193100 MW
    11Apple Mesa Data CenterAppleMesa, Arizona, USA1.3M120,773~50 MW
    10Utah Data CenterNSABluffdale, Utah, USA1.4M130,06465 MW
    9ACC CampusDigital RealtyAshburn, Virginia, USA1.6M148,60042+ MW
    8CWL1 Data CentreVantage Data CentersNewport, Wales, UK2.0M185,806~148 MW
    7Switch Core CampusSwitchLas Vegas, Nevada, USA2.7M250,800~315 MW
    6Google Council BluffsGoogleCouncil Bluffs, Iowa, USA2.9M269,000100+ MW
    5Range International Information HubRange International / IBMLangfang, China6.3M585,000~150 MW
    4Harbin Data CenterChina MobileHarbin, China7.1M663,000~200 MW
    3The Citadel CampusSwitchTahoe Reno, Nevada, USA7.2M668,901Up to 650 MW
    2China Mobile Hohhot Data CenterChina MobileHohhot, China7.7M715,000150+ MW
    1China Telecom Inner Mongolia Information ParkChina TelecomHohhot, China10.7M994,062~150 MW

    15. Yotta NM1 (Navi Mumbai, India)

    • Company: Yotta Infrastructure
    • Location: Panvel, Navi Mumbai, India
    • Power Capacity: 50 MW (expandable to 60 MW)
    • Area: 76,180 sq. meters (820,000 sq. ft)
    • Cost: Over $1.1 billion (full data center park)
    • CEO: Sunil Gupta
    yotta nm1 data center
    Yotta NM1 Data Center.

    Image Credit: https://yotta.com/media/yotta-infrastructure-inaugurates-asias-largest-and-worlds-second-largest-uptime-institute-tier-iv-certified-data-center-yotta-nm1-at-navi-mumbai/

    Yotta NM1 is a 16-story hyperscale data center covering 820,000 square feet in Navi Mumbai. The operational facility provides 52 MW of IT capacity, supports up to 7,200 racks, and includes redundant power, cooling, fiber connectivity, and 48 hours of backup power.

    NM1 was India’s first data center to receive Uptime Institute Tier IV certifications for both design and constructed facility standards. It later earned Tier IV Gold operational sustainability certification. The carrier-neutral site supports banking, telecom, government, cloud, AI, and high-performance computing workloads.

    NM1 is the first building in Yotta’s Navi Mumbai data center campus. The original five-building plan targeted 30,000 racks and 250 MW, with additional expansion planned across the site.

    14. QTS Metro Data Center (Atlanta, Georgia, USA)

    • Company: QTS Realty Trust (owned by Blackstone)
    • Location: Atlanta, Georgia, USA
    • Power Capacity: Approx. 70 to 130 MW
    • Area: 90,116 sq. meters (970,000 sq. ft)
    • CEO: Chad Williams (Founder)

    The QTS Atlanta-Metro facility is a 970,000-square-foot data center converted from a former Sears-Roebuck distribution building. Its original specifications include 527,000 square feet of raised floor space, 120 MW of critical power expandable to 160 MW, and N+1 to 2N redundancy. Cooling infrastructure includes 10 chillers, 16 cooling towers, 950 CRAH units, air-side economizers, and generators supported by 200,000 gallons of on-site fuel.

    The facility is part of QTS Atlanta 1, a 99-acre, four-building campus with more than 278 MW of planned critical capacity and three expandable Georgia Power substations. Redundant fiber routes connect the buildings to multiple carriers, internet exchanges, major cloud platforms, and the 56 Marietta carrier hotel.

    Phase II holds LEED Gold certification and uses rainwater collection and energy-efficient air-side cooling. Security includes perimeter fencing, gated access, continuous staffing, video surveillance, and biometric controls. The site serves hyperscale companies, enterprises, government agencies, financial institutions, and healthcare providers.

    Blackstone acquired QTS for approximately $10 billion in 2021. Founder Chad Williams previously served as CEO, while Thomas A. “Tag” Greason and David Robey now lead the company as co-CEOs.

    13. Tulip Data Center (Bengaluru, India)

    • Company: Tulip (data center services now associated with STT GDC)
    • Location: Bengaluru, Karnataka, India
    • Power Capacity: 100 MW (design)
    • Area: 92,900 sq. meters (1 million sq. ft)
    • Cost: Approx. $600 million
    • Operator: Tulip / STT GDC

    The Tulip Data Center in Bengaluru launched as one of India’s largest facilities, marketed at roughly 1 million square feet and a design capacity of 100 megawatts.

    The four-tower facility covers approximately 900,000 square feet and includes 20 modular sections designed for up to 12,000 racks and 100 MW of power. IBM advised on its power, cooling, rack, cloud, and operational infrastructure.

    The carrier-neutral facility was designed to Tier III and Tier IV standards and launched with a reported PUE of approximately 1.5. It provides colocation, cloud, hosting, storage, security, connectivity, and disaster recovery services.

    The 100 MW and 12,000-rack figures reflect planned maximum capacity rather than confirmed operational use. Engineering records list a 40 MVA electrical demand and 17,000 TR of cooling capacity. Tulip acquired the site for ₹230 crore, with total planned investment reaching approximately ₹900 crore.

    12. Lakeside Technology Center (Chicago, Illinois, USA)

    • Company: Digital Realty
    • Location: Chicago, Illinois, USA
    • Power Capacity: Approx. 100 MW
    • Area: 102,193 sq. meters (1.1 million sq. ft)
    • Cost: Estimated cumulative value around $2 billion
    • CEO: Andy Power (CEO of Digital Realty)
    Lakeside Technology Center (Chicago, Illinois, USA)
    Lakeside Technology Center (Chicago, Illinois, USA)

    The Lakeside Technology Center at 350 East Cermak is one of North America’s largest carrier hotels, spanning 1.1 million square feet across eight stories. Earlier Digital Realty specifications listed 109 MW of utility capacity, 70 MW of UPS capacity, 150 MW of generator capacity, and power configurations ranging from N+1 to 2N.

    Built in 1912 as an R.R. Donnelley printing plant, the property was acquired by Digital Realty in 2005 and converted into a major internet, cloud, content, and financial trading hub. The facility connects to more than 70 network providers and serves over 500 tenants, including firms requiring low-latency access to Chicago’s financial district.

    A refrigerated brine-water system supplies approximately half of the building’s cooling needs. The site holds LEED Gold, Energy Star, SOC 2, SOC 3, PCI DSS, and ISO 27001 credentials. The $2 billion figure reflects the property’s investment valuation as of August 2022, not its construction cost.

    The building delivers approximately 100 megawatts and houses financial institutions, healthcare providers, content platforms, and multiple operators including Equinix and ColoHouse.

    11. Apple Mesa Data Center (Mesa, Arizona, USA)

    • Company: Apple
    • Location: Mesa, Arizona, USA
    • Power Capacity: Approx. 50 MW (renewable)
    • Area: 120,773 sq. meters (1.3 million sq. ft)
    • Total Investment: Over $2 billion
    • CEO: Tim Cook
    Apple Mesa Data Center
    Apple Mesa Data Center

    Apple’s Mesa data center is a 1.3 million square foot command hub for core services such as iMessage, Siri, iCloud, and Apple Music. Originally built as a sapphire glass factory, the site was converted into a data operation with a focus on security, sustainability, and efficiency, backed by an Apple investment of over $2 billion.

    The facility runs on approximately 50 megawatts sourced from renewable energy, including a dedicated solar plant in Florence, Arizona. Mesa’s dry climate and stable grid support reliable operations while aligning the site with Apple’s carbon-neutral commitments.

    10. Utah Data Center (Bluffdale, Utah, USA)

    • Organization: National Security Agency (NSA)
    • Location: Bluffdale, Utah, USA
    • Power Capacity: 65 MW
    • Area: 130,064 sq. meters (1.4 million sq. ft)
    • Cost: $1.5 billion
    Utah Data Center NSA
    Utah Data Center NSA. Image Credit: Swilsonmc, CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons

    The Utah Data Center, operated by the NSA at Camp Williams near Bluffdale, spans about 1.4 million square feet. Completed in 2014 at a cost of $1.5 billion, the facility processes and stores classified data in support of national intelligence operations.

    The complex contains approximately 100,000 square feet of primary data halls, along with technical support buildings, administrative offices, utility infrastructure, cooling systems, storage facilities, and controlled-access structures.

    Powered by 65 megawatts, the site features advanced security, cooling, and long-term data retention infrastructure. Its Utah location provides physical security, a stable climate, and reliable grid access for around-the-clock operations.

    9. ACC Campus (Ashburn, Virginia, USA)

    • Company: Digital Realty (formerly DuPont Fabros)
    • Location: Ashburn, Virginia, USA
    • Power Capacity: 42+ MW
    • Area: 148,600 sq. meters (1.6 million sq. ft)
    • Cost: Not disclosed
    • CEO: Andy Power (CEO of Digital Realty)

    The ACC Campus in Ashburn is a multi-building data center complex of 1.6 million square feet in the world’s largest data center market. Developed originally by DuPont Fabros and now operated by Digital Realty, the campus serves hyperscale and enterprise tenants in Loudoun County, where more than 70% of the world’s internet traffic passes through the surrounding infrastructure.

    ACC7 is the campus’s largest individual facility, covering 446,000 square feet and designed to provide 41.6 MW of critical power. It contains 28 computer rooms, each supporting 1 to 2 MW, with flexible cabinet layouts and load densities. The facility uses N+2 power redundancy, medium-voltage distribution and an evaporative cooling system supplied partly with reclaimed water. ACC7 later received LEED Gold certification.

    The Ashburn location offers dense fiber connectivity, competitive Dominion Energy rates, and Virginia’s sales and use tax exemption on data center equipment. The campus supports cloud, enterprise, and mission-critical workloads across its buildings.

    8. CWL1 Data Centre (Newport, Wales, UK)

    • Company: Vantage Data Centers
    • Location: Newport, Wales, UK
    • Power Capacity: Approx. 148 MW (expandable beyond 180 MW)
    • Area: 185,806 sq. meters (2 million sq. ft)
    • Cost: Estimated $1.3 billion
    • CEO: Sureel Choksi
    CWL1 Data Centre (Newport, Wales, UK)
    CWL1 Data Centre (Newport, Wales, UK)

    CWL1 is one of the largest data center campuses in Europe, spanning roughly 2 million square feet near Newport in South Wales. Originally developed by Next Generation Data and now operated by Vantage Data Centers, the site delivers about 148 megawatts of critical power across a campus designed for three data centers, two of which are operational.

    The facility exceeds Tier III standards and features a private 400kV connection to the UK National Grid. CWL1 runs on 100% renewable energy, primarily Welsh hydroelectric power, and has maintained a strong uptime record since going live in 2010.

    7. Switch Core Campus (Las Vegas, Nevada, USA)

    • Company: Switch
    • Location: Las Vegas, Nevada, USA
    • Power Capacity: Approx. 315 MW (expandable up to 495 MW)
    • Area: 250,800 sq. meters (2.7 million sq. ft operational)
    • Cost: Over $1.1 billion
    • CEO: Rob Roy
    Switch Core Campus Las Vegas Data Center
    Switch Core Campus Las Vegas Data Center

    The Switch Core Campus in Las Vegas is one of the most advanced colocation ecosystems in the United States, with roughly 2.7 million square feet operational and around 315 megawatts of power. The campus scales toward 495 megawatts and supports enterprise, hyperscale, and government clients under Switch’s Tier 5 standard.

    Switch’s high-density, modular design and 100% renewable Green Power program anchor the site, while direct access to dozens of carriers and network exchanges supports low latency and high availability. The Core Campus works with the Citadel and Switch’s Atlanta and Grand Rapids sites to form a national colocation footprint.

    6. Google Data Center (Council Bluffs, Iowa, USA)

    • Company: Google
    • Location: Council Bluffs, Iowa, USA
    • Power Capacity: Over 100 MW
    • Area: 269,000 sq. meters (2.9 million sq. ft)
    • Total Investment: Part of more than $20 billion invested in Iowa
    • CEO: Sundar Pichai
    Google Data Center, Council Bluffs Iowa
    Google Data Center, Council Bluffs Iowa. Image Credit: Caddavis.photography from United States, CC BY 2.0 https://creativecommons.org/licenses/by/2.0, via Wikimedia Commons

    Google’s Council Bluffs campus is one of the company’s largest U.S. operations hubs, spanning about 2.9 million square feet across multiple buildings. Operational since 2009, the site powers Google Search, Gmail, YouTube, and Google Cloud. Google states it has invested more than $20 billion in Iowa since building the campus in 2007.

    That total includes a $7 billion commitment announced in 2025 to expand Council Bluffs and build a new campus in Cedar Rapids. The center runs on over 100 megawatts of power supported by clean energy, and the Iowa location offers low-cost electricity, strong fiber, and geographic stability.

    5. Range International Information Hub (Langfang, China)

    • Company: Range International Information Group (with early design input from IBM)
    • Location: Langfang, Hebei Province, China
    • Power Capacity: Approx. 150 MW
    • Area: 585,000 sq. meters (6.3 million sq. ft)
    • Cost: Approx. $2.6 to $3 billion
    • Operator: Range International Information Group
    Range International Information Hub
    Range International Information Hub

    The Range International Information Hub in Langfang is reported at 6.3 million square feet, placing it fifth on the list. Sited between Beijing and Tianjin, the campus supports cloud computing, big data, and AI workloads for government and enterprise use, and connects to China’s high-speed fiber network.

    IBM provided early design consultancy under a 2011 agreement, though the facility is operated by Range International Information Group. Public documents describe a campus that includes offices, apartments, and a hotel alongside the data halls, so the reported figure covers the wider complex. The full build has been characterized in some sources as a long-term project rather than a completed facility.

    4. Harbin Data Center (Harbin, China)

    • Company: China Mobile
    • Location: Harbin, Heilongjiang Province, China
    • Power Capacity: Approx. 200 MW
    • Area: 663,000 sq. meters (7.1 million sq. ft)
    • Cost: Not disclosed
    • Operator: China Mobile (no publicly listed CEO for this facility)
    Harbin-Data-Center-China
    Harbin-Data-Center-China

    The Harbin Data Center, operated by China Mobile, ranks fourth by reported area at 7.1 million square feet. Located in northeastern China, the campus supports government, enterprise, and telecom workloads and forms part of China’s push to move infrastructure into cooler, energy-efficient northern regions.

    Harbin’s cold climate lowers cooling costs, which matters at hyperscale power draws near 200 megawatts. Public design material describes a campus that mixes data halls with substantial office, teaching, and dormitory space, so the reported area spans more than data center floor alone. Many operational details remain restricted.

    3. The Citadel Campus (Tahoe Reno, Nevada, USA)

    • Company: Switch
    • Location: Tahoe Reno Industrial Center, Nevada, USA
    • Power Capacity: Up to 650 MW
    • Area: 668,901 sq. meters (7.2 million sq. ft)
    • Cost: Estimated $1.3 billion
    • CEO: Rob Roy
    Switch Citadel Data Center at Tahoe Reno
    Switch Citadel Data Center at Tahoe Reno

    The Citadel Campus, operated by Switch, is the largest colocation data center campus in the world, master-planned for 7.2 million square feet and up to 650 megawatts. Located next to the Tesla Gigafactory in the Tahoe Reno Industrial Center, the campus delivers colocation capacity to enterprise, government, and technology clients. Its lead building, TAHOE RENO 1, is the largest single colocation facility in the world at 1.3 million square feet and up to 130 MW.

    The campus runs on 100% renewable energy through Switch’s solar and storage investments in Nevada and is built to Switch’s Tier 5 standard. Direct fiber access to San Francisco, the Bay Area, and Los Angeles through the Switch Superloop supports low-latency connectivity for AI, cloud, and high-density workloads. Switch has been privately held since DigitalBridge and IFM took the company private in December 2022.

    2. China Mobile Hohhot Data Center (Hohhot, China)

    • Company: China Mobile
    • Location: Hohhot, Inner Mongolia, China
    • Power Capacity: 150+ MW
    • Area: 715,000 sq. meters (7.7 million sq. ft)
    • Cost: Approx. $1.9 billion
    • Operator: China Mobile (no publicly listed CEO for this facility)

    China Mobile’s Hohhot campus is the second largest data center in the world by reported area, at 7.7 million square feet. China Mobile announced the 715,000 square meter, $1.92 billion campus in 2014, positioning it as a core node in its national cloud and telecom network alongside China Telecom’s neighboring park in the same corridor.

    The facility supports government, enterprise, and telecom workloads and benefits from the same cold-climate cooling advantage that draws operators to the Hohhot-Ulanqab region. As with the other Chinese entries, the reported area reflects the announced campus plan rather than an independently verified data center footprint.

    1. China Telecom Inner Mongolia Information Park (Hohhot, China)

    • Company: China Telecom
    • Location: Hohhot, Inner Mongolia, China
    • Power Capacity: Approx. 150 MW
    • Area: 994,062 sq. meters (10.7 million sq. ft)
    • Cost: Approx. $2.6 to $3 billion
    • CEO: Ke Ruiwen
    China-Telecom-Largest-Data-Center-in-the-World
    China-Telecom-Largest-Data-Center-in-the-World

    China Telecom’s Inner Mongolia Information Park is the largest data center in the world by reported floor area, at a stated 10.7 million square feet. Located in Hohhot, the complex handles cloud services, telecom infrastructure, government systems, and enterprise workloads across China, and connects directly to China Telecom’s nationwide fiber backbone.

    The site takes advantage of northern China’s cold climate to lower cooling costs and improve energy efficiency. It serves major platforms including Tencent, Alibaba, and Baidu, which makes it a cornerstone of the country’s national data strategy. The 10.7 million square foot figure, reported by operator and state-media sources, covers the full complex rather than data center halls alone.

    Read More Similar Posts: 

    Find the Right Data Center for Your Business

    What Is the Largest Data Center in the World by Megawatts?

    xAI's Colossus 2, near Memphis, Tennessee, is the largest single-site data center in the world by power capacity, drawing approximately 946 megawatts. The site edges out Amazon's Project Rainier in New Carlisle, Indiana, which operates at around 910 megawatts and trains Anthropic's Claude models. Both figures come from Epoch AI's mid-2026 satellite tracking and continue to climb as the campuses ramp.

    Colossus 2 succeeds Colossus 1, the original xAI facility built in Memphis in 2024, which draws roughly 300 megawatts and houses about 200,000 AI chips used to train the Grok models. The two sites operate together over high-bandwidth fiber, and xAI has stated plans to push the wider Colossus complex toward 2 gigawatts.

    Meta’s Hyperion data center campus in Richland Parish, Louisiana, is planned to reach 5,000 megawatts, which would make it substantially larger. Hyperion remains under construction and does not qualify as the world’s largest operational data center.

    What Is the Largest Data Center in the World by Square Footage?

    As mentioned previously, China Telecom’s Inner Mongolia Information Park in Hohhot, China, is the largest data center in the world by square footage.

    The operational campus covers approximately 10.7 million square feet, or 994,000 square meters, and has a reported power capacity of about 150 megawatts. The complex contains multiple data halls supporting cloud computing, telecommunications, colocation, and large-scale data processing services.

    Which Company Has the Most Data Centers in the World?

    Digital Realty has the most data centers in the world, operating more than 300 facilities across over 55 metropolitan areas. Its global portfolio serves more than 5,000 customers and includes colocation, hyperscale, cloud connectivity, and AI infrastructure. Digital Realty’s facility count exceeds Equinix, which operates more than 270 data centers worldwide.

    How Big Is a Data Center?

    A data center can range from a small facility with less than 5,000 square feet of computer-room space to a hyperscale campus covering millions of square feet. The U.S. Department of Energy classifies data centers below 5,000 square feet of computer floor space as small, while IBM cites an industry definition requiring a hyperscale facility to contain at least 5,000 servers and occupy at least 10,000 square feet.

    Modern facilities are usually measured by electrical capacity rather than building area because two buildings of the same size may support very different amounts of computing equipment. Large data centers commonly operate at tens of megawatts, while Uptime Institute classifies projects exceeding 100 megawatts as giant data centers.

    What Is an AI Data Center?

    An AI data center is a type of data center specifically designed to handle the massive computational and storage demands of artificial intelligence workloads.

    It’s a high-performance facility optimized to run AI models, process big data, and support machine learning operations at scale. These centers are packed with specialized hardware like GPUs, TPUs, and high-bandwidth interconnects—far beyond the standard CPUs used in traditional data centers.

    What Makes It Different from a Regular Data Center?

    FeatureTraditional Data CenterAI Data Center
    Main WorkloadWeb hosting, storage, appsTraining and running AI/ML models
    HardwareMostly CPUsGPUs, TPUs, NVMe storage, high-speed fabric
    Power NeedsModerateExtremely high due to GPU-heavy workloads
    CoolingStandardAdvanced (liquid cooling, immersion, etc.)
    NetworkGeneral-purposeUltra-low latency, high throughput
    Use CasesWebsites, databases, emailChatbots, computer vision, big data analytics

    Final Thoughts 

    China and the United States lead the global data center race on different terms. China leads in reported facility size, while the U.S. dominates in data center count and AI power capacity.

    China Telecom’s 10.7 million-square-foot complex in Inner Mongolia is the largest by floor area, followed by China Mobile’s 7.7 million-square-foot Hohhot campus. In the U.S., Switch’s Citadel campus in Nevada is the world’s largest colocation site, spanning 7.2 million square feet with up to 650 megawatts of capacity.

    Measured by power, AI campuses now take the lead. xAI’s Colossus 2 near Memphis draws roughly 946 megawatts, while Amazon’s Project Rainier reaches about 910 megawatts.

    India is expanding through Yotta NM1, an 820,000-square-foot Tier IV facility with 50 megawatts of capacity. Europe’s CWL1 campus in Wales covers 2 million square feet and operates at about 148 megawatts. Norway highlights the efficiency race through Green Mountain’s hydropower-powered facilities, including a former NATO mountain vault cooled by fjord water.

    Data center growth now depends on two priorities: greater scale for AI workloads and greater efficiency through renewable power and advanced cooling. These facilities support cloud computing, AI, streaming, storage, and much of the modern digital economy.

    Brightlio Delivers United States Colocation Services

    Finding the right data center in the United States starts with Brightlio. As a telecommunications and colocation broker, we have data center partners across every major US market, ready to provide solutions matched to your needs and budget. Simply share your space, power, and connectivity requirements, and we'll provide colocation pricing at no charge.

    Beyond colocation, we offer connectivity, unified communications, cloud, infrastructure hosting, disaster recovery, and advisory services. This full suite of offerings gives your enterprise a complete technology solution through a single partner.

    Contact Brightlio now to get started!

    Frequently Asked Questions (FAQs)

    1. Who has the largest data center in the world?

    The largest data center in the world by reported floor area is China Telecom's Inner Mongolia Information Park in Hohhot, China, at a stated 10.7 million square feet. It supports large-scale cloud, telecom, and government workloads.

    2. Is Switch the largest data center in the world?

    No. Switch's Citadel Campus in Nevada is the largest colocation data center campus in the world at 7.2 million square feet, but China Telecom's Inner Mongolia park holds the overall floor-area title.

    3. What is the largest data center by power capacity?

    By IT power capacity, the largest single-site facility is xAI's Colossus 2 near Memphis at roughly 946 megawatts. The largest concentration overall is the Inner Mongolia cluster, which exceeds 3,000 megawatts across multiple operators.

    4. What is a Tier 1, 2, 3, or 4 data center?

    These are classifications by the Uptime Institute that define data center reliability and infrastructure:
    - Tier 1: Basic capacity, no redundancy, ~99.671% uptime
    - Tier 2: Redundant components, ~99.741% uptime
    - Tier 3: Concurrently maintainable, multiple power/cooling paths, ~99.982% uptime
    - Tier 4: Fault-tolerant, fully redundant systems, ~99.995% uptime

    5. Is there a Tier 5 data center?

    While not officially recognized by any authority bodies, some providers use “Tier 5” as a marketing term to describe data centers with extreme security, energy efficiency, and 100% uptime. It’s not a standardized certification.

    6. Why does China build such large data centers?

    China invests in large-scale data centers to support national cloud infrastructure, AI training, government services, and data localization requirements. Northern regions such as Inner Mongolia and Heilongjiang offer cold climates and low-cost power that suit hyperscale operations.

    7. Which countries have the most large data centers?

    The United States and China host the most massive data centers. The United States leads in commercial, cloud, and AI infrastructure, while China focuses on state-backed hyperscale campuses. India is expanding quickly through operators such as Yotta.

    8. How much power do the largest data centers consume?

    The largest sites draw hundreds of megawatts. Switch's Citadel Campus is designed for up to 650 megawatts, while the newest AI campuses exceed 900 megawatts of IT load. Power efficiency and renewable sourcing are central design priorities.

    9. Are the largest data centers colocation facilities?

    Some are and some are not. Switch, QTS, Vantage, Digital Realty, and Yotta operate colocation facilities where businesses can lease space. Sites such as Google Council Bluffs, the NSA Utah Data Center, and the AI campuses are owner-operated and not available for colocation.

    10. Will larger data centers be built in the future?

    Yes. Demand for cloud services and AI compute continues to drive record-breaking projects. Meta's Hyperion campus in Louisiana targets around 5 gigawatts, and analysts expect new single-site records through 2027 and 2028.

    11. What is the purpose of such large data centers?

    Large data centers are used for cloud computing, data storage, content delivery, disaster recovery, and AI processing. Hyperscale centers serve millions of users and run critical services for tech giants and governments.

    12. Are all large data centers privately owned?

    No, while many large data centers are owned by private companies like Switch, Microsoft, and Google, others are government-backed, such as China Telecom’s center or the U.S. NSA's Utah Data Center.

    13. How much power do the world’s largest data centers consume?

    Large data centers can consume hundreds of megawatts. For example, the Citadel Campus can draw over 650 megawatts. Power efficiency and sustainability are major design priorities to reduce carbon impact.

    14. Are large data centers environmentally sustainable?

    Some large data centers use renewable energy sources such as solar, hydro, or wind. Switch's Citadel Campus runs entirely on renewable power, Apple's Mesa facility is backed by Arizona solar, and CWL1 in Wales draws on Welsh hydroelectric power. Cold-climate operators like Green Mountain in Norway push efficiency further, cooling sites with fjord water on 100% hydropower.

    Let's start

    a new project together