Top 20 Largest Data Centers Worldwide


Outside the U.S., China leads in sheer campus floor area (Hohhot/Inner Mongolia & Langfang), while U.S. hyperscalers often dominate in compute density. Figures below emphasize campus-level size (sq ft) and announced/built MW where credibly published.


Rank Facility / Campus Operator Location Size (sq ft) Power (MW) Notes
1 China Telecom – Inner Mongolia Information Park China Telecom Hohhot, Inner Mongolia, China 10M+ (planned full build) >1,000 (planned) One of the largest planned data campuses worldwide.
2 Range International Information Hub Range Technology Langfang, Hebei, China ~6.3M ~150+ National-level data hub project in China.
3 China Mobile – Harbin Cloud Data Center China Mobile Harbin, Heilongjiang, China ~7M n/a (public data varies) Massive multi-hall data complex.
4 China Mobile – Guiyang Data Center China Mobile Guiyang, Guizhou, China ~7M n/a (public data varies) Guizhou province emerging as a Chinese data hub.
5 China Telecom – Guizhou Cloud Big Data Center China Telecom Guiyang, Guizhou, China ~5.5M n/a (public data varies) Part of national strategy for cloud and big data.
6 China Unicom – Langfang Data Center China Unicom Langfang, Hebei, China ~3.2M n/a (public data varies) Unicom’s flagship hyperscale cluster.
7 China Mobile – Inner Mongolia Hohhot Campus China Mobile Hohhot, Inner Mongolia, China ~1.5M+ n/a (public data varies) Complementary to China Telecom’s Hohhot park.
8 Kolos Data Center (planned) Kolos Ballangen, Norway ~6.5M (planned) Up to 1,000 (planned) Renewable-powered Scandinavian mega project.
9 Yotta NM1 Campus Yotta Infrastructure Mumbai, India ~820k (first phase) Up to 200+ India’s largest operational data center campus.
10 GDS Hebei Langfang Data Center Campus GDS Holdings Langfang, Hebei, China ~430k+ (phase 1) ~100+ Part of Hebei’s strategic data hub.
11 China Telecom – Nantong Data Center China Telecom Nantong, Jiangsu, China Campus scale n/a Tier-4 certified, major coastal hub.
12 China Mobile – Beijing Data Center China Mobile Beijing, China Campus scale n/a Supports capital-region government & enterprise cloud.
13 China Telecom – Tianjin Data Center China Telecom Tianjin, China Campus scale n/a Northeast China capacity expansion.
14 Chayora Tianjin Campus Chayora Tianjin, China >300 acres (multi-building) n/a Designed for global hyperscaler tenants.
15 NextDC Sydney Campus NextDC Sydney, Australia Campus scale n/a Flagship Aussie hyperscale-ready facility.
16 AirTrunk Sydney West Campus AirTrunk Sydney, Australia Campus scale Up to 300+ Largest hyperscale footprint in Australia.
17 ST Telemedia – Singapore Data Center Campus STT GDC Singapore Campus scale n/a Strategic Southeast Asia hub.
18 CtrlS Hyderabad Campus CtrlS Hyderabad, India Campus scale n/a Tier-4 certified, large-scale hyperscale hosting.
19 Keppel Data Centres – Dublin Campus Keppel DC Dublin, Ireland Campus scale n/a European hyperscale and enterprise hosting hub.
20 NTT Tokyo Data Center Campus NTT Tokyo, Japan Campus scale n/a Anchor site for Japan’s hyperscale demand.