What is an AI datacenter?

An AI datacenter is a facility purpose-built or retrofitted for GPU and accelerator workloads — typically at rack densities above 30 kW, with liquid-cooling readiness and high-bandwidth fabric (InfiniBand NDR, NVLink, or Spectrum-X). At least 40% of IT load runs AI training or inference on GPUs such as NVIDIA H100, H200, B200, or GB200 NVL72.

Which datacenter has the most GPUs?

As of 2026, xAI Colossus in Memphis, Tennessee holds the title of the world's largest single-site GPU deployment, with more than 200,000 NVIDIA H100 and H200 GPUs in one InfiniBand domain. Meta Hyperion (Louisiana) and OpenAI Stargate Abilene (Texas) are scaling toward gigawatt-class deployments that will overtake it within the next 18 months.

What is the largest AI cluster?

xAI Colossus is the largest contiguous AI training cluster in 2026, exceeding 200,000 NVIDIA H100/H200 GPUs on a single InfiniBand NDR 400G fabric. Meta's Hyperion build and OpenAI's Stargate program are constructing multi-site fabrics that will exceed one million accelerators across coupled campuses by 2027.

Which GPU cloud is cheapest for H100?

On-demand: Together AI ($1.75/hr) and Voltage Park ($1.89/hr) lead. Reserved 1-year: Voltage Park ($1.20/hr) and Crusoe ($1.39/hr) are typically lowest. AWS p5 sits at the top of the price stack at ~$4.10/hr on-demand.

How is Datacenter.computer different from a datacenter directory?

Datacenter.computer is an agent-readable intelligence layer, not a directory. It normalizes pricing, capacity, power, fabric, and latency across 240+ facilities and 40+ operators into a single queryable graph for AI agents, traders, and procurement teams.

[DC.COMPUTER] Layer 5 · Colocation

NTT

Every indexed NTT datacenter — facility-level capacity, GPU fleet, and country coverage.

Datacenter Portfolio

[AI Summary]

NTT runs 109 indexed datacenters across 27 countries, totaling 1,618 MW of IT capacity. The portfolio spans colocation tiers and deploys H100, B200, H200, MI300X, L40S, A100.

109

Facilities

1,618 MW

Total IT

Countries

GPU SKUs

[Facilities · 109]

Facility	Operator	Location	GPU	MW	PUE
NTT LONDON84 Annex	NTT	London, United Kingdom	—	13	1.46
NTT LONDON113 Campus	NTT	London, United Kingdom	H100	26	1.26
NTT SLOUGH25	NTT	Slough, United Kingdom	H100	19	1.29
NTT FRANKFURT66 West	NTT	Frankfurt, Germany	—	14	1.47
NTT FRANKFURT68 South	NTT	Frankfurt, Germany	B200	24	1.52
NTT FRANKFURT71 West	NTT	Frankfurt, Germany	—	28	1.20
NTT FRANKFURT75 Central	NTT	Frankfurt, Germany	—	39	1.30
NTT FRANKFURT94 Annex	NTT	Frankfurt, Germany	—	39	1.34
NTT FRANKFURT98 Annex	NTT	Frankfurt, Germany	—	29	1.24
NTT AMSTERDAM8 Central	NTT	Amsterdam, Netherlands	H200	15	1.47
NTT PARIS17 Park	NTT	Paris, France	—	10	1.43
NTT PARIS47 South	NTT	Paris, France	—	3	1.36
NTT PARIS71 North	NTT	Paris, France	—	12	1.45
NTT MARSEILLE2 Central	NTT	Marseille, France	MI300X	9	1.48
NTT MARSEILLE16 Central	NTT	Marseille, France	—	17	1.29
NTT DUBLIN35 Annex	NTT	Dublin, Ireland	—	26	1.31
NTT MADRID3 Park	NTT	Madrid, Spain	B200	23	1.30
NTT MADRID20 North	NTT	Madrid, Spain	L40S	4	1.38
NTT BARCELONA3 Central	NTT	Barcelona, Spain	—	19	1.31
NTT ZURICH21 Campus	NTT	Zurich, Switzerland	A100	23	1.35
NTT ZURICH32 West	NTT	Zurich, Switzerland	—	16	1.22
NTT GENEVA4 Park	NTT	Geneva, Switzerland	MI300X	5	1.46
NTT VIENNA23 Central	NTT	Vienna, Austria	H100	4	1.39
NTT STOCKHOLM6 Annex	NTT	Stockholm, Sweden	—	21	1.32
NTT STOCKHOLM11 South	NTT	Stockholm, Sweden	MI300X	2	1.39
NTT STOCKHOLM13	NTT	Stockholm, Sweden	—	17	1.23
NTT STOCKHOLM17 Park	NTT	Stockholm, Sweden	—	19	1.26
NTT STOCKHOLM19 Annex	NTT	Stockholm, Sweden	—	17	1.27
NTT HELSINKI3 Campus	NTT	Helsinki, Finland	—	19	1.30
NTT WARSAW2 Central	NTT	Warsaw, Poland	—	5	1.44
NTT WARSAW6 North	NTT	Warsaw, Poland	—	22	1.35
NTT WARSAW8 North	NTT	Warsaw, Poland	—	4	1.39
NTT SOFIA5 West	NTT	Sofia, Bulgaria	—	6	1.47
NTT SOFIA9 East	NTT	Sofia, Bulgaria	—	4	1.42
NTT SOFIA12 South	NTT	Sofia, Bulgaria	—	8	1.47
NTT BERLIN1 South	NTT	Berlin, Germany	—	18	1.28
NTT BERLIN3 East	NTT	Berlin, Germany	L40S	13	1.33
NTT MUNICH11	NTT	Munich, Germany	—	19	1.27
NTT MUNICH15 West	NTT	Munich, Germany	—	16	1.22
NTT MUNICH17 Campus	NTT	Munich, Germany	—	12	1.21
NTT MUNICH19 West	NTT	Munich, Germany	H100	6	1.43
NTT HAMBURG1 West	NTT	Hamburg, Germany	—	2	1.37
NTT HAMBURG3 Park	NTT	Hamburg, Germany	—	8	1.32
NTT ROTTERDAM2 Park	NTT	Rotterdam, Netherlands	—	18	1.31
NTT ROTTERDAM6 South	NTT	Rotterdam, Netherlands	—	19	1.31
NTT TALLINN8 North	NTT	Tallinn, Estonia	A100	2	1.40
NTT ZAGREB1 South	NTT	Zagreb, Croatia	—	3	1.40
NTT SINGAPORE61 Campus	NTT	Singapore, Singapore	—	14	1.51
NTT TOKYO17	NTT	Tokyo, Japan	—	31	1.29
NTT SEOUL33 East	NTT	Seoul, South Korea	—	21	1.26
NTT SEOUL37 North	NTT	Seoul, South Korea	—	18	1.21
NTT HONG15	NTT	Hong Kong, Hong Kong	—	23	1.29
NTT HONG22 West	NTT	Hong Kong, Hong Kong	—	11	1.49
NTT TAIPEI6 South	NTT	Taipei, Taiwan	—	22	1.28
NTT TAIPEI8 South	NTT	Taipei, Taiwan	—	15	1.24
NTT TAIPEI15 North	NTT	Taipei, Taiwan	—	10	1.47
NTT TAIPEI21 Campus	NTT	Taipei, Taiwan	—	24	1.37
NTT SHANGHAI14 West	NTT	Shanghai, China	—	28	1.54
NTT SHANGHAI21 North	NTT	Shanghai, China	H100	13	1.48
NTT SHANGHAI23 Annex	NTT	Shanghai, China	B200	37	1.38
NTT SHANGHAI25 Park	NTT	Shanghai, China	L40S	4	1.36
NTT SHANGHAI36 West	NTT	Shanghai, China	MI300X	9	1.48
NTT SHANGHAI66 North	NTT	Shanghai, China	—	14	1.49
NTT BEIJING14 Park	NTT	Beijing, China	MI300X	30	1.28
NTT BEIJING22 North	NTT	Beijing, China	—	37	1.36
NTT BEIJING26 Park	NTT	Beijing, China	—	14	1.47
NTT BEIJING30 Annex	NTT	Beijing, China	H200	16	1.49
NTT SHENZHEN53 Park	NTT	Shenzhen, China	—	6	1.40
NTT SHENZHEN57	NTT	Shenzhen, China	B200	24	1.23
NTT HANGZHOU24 Park	NTT	Hangzhou, China	—	11	1.49
NTT HANGZHOU26 South	NTT	Hangzhou, China	—	6	1.45
NTT HANGZHOU28 Park	NTT	Hangzhou, China	—	14	1.53
NTT HANGZHOU30 Park	NTT	Hangzhou, China	MI300X	4	1.41
NTT CHENGDU21	NTT	Chengdu, China	—	7	1.46
NTT GUIYANG3 South	NTT	Guiyang, China	—	5	1.32
NTT GUIYANG7 West	NTT	Guiyang, China	A100	13	1.21
NTT GUIYANG14 East	NTT	Guiyang, China	—	2	1.36
NTT GUIYANG18 North	NTT	Guiyang, China	B200	10	1.53
NTT MUMBAI10 West	NTT	Mumbai, India	H100	22	1.25
NTT MUMBAI18 Campus	NTT	Mumbai, India	—	30	1.31
NTT CHENNAI36 Campus	NTT	Chennai, India	H200	17	1.25
NTT BENGALURU5 West	NTT	Bengaluru, India	—	23	1.33
NTT HYDERABAD17 East	NTT	Hyderabad, India	H100	8	1.50
NTT DELHI12 Central	NTT	Delhi NCR, India	H200	17	1.21
NTT PUNE1 Park	NTT	Pune, India	—	7	1.45
NTT SYDNEY2 North	NTT	Sydney, Australia	—	9	1.44
NTT SYDNEY32 South	NTT	Sydney, Australia	—	15	1.54
NTT SYDNEY34 East	NTT	Sydney, Australia	—	12	1.50
NTT SYDNEY36 Annex	NTT	Sydney, Australia	A100	21	1.23
NTT MELBOURNE33 East	NTT	Melbourne, Australia	A100	19	1.26
NTT BRISBANE4 North	NTT	Brisbane, Australia	—	16	1.30
NTT BRISBANE6 Annex	NTT	Brisbane, Australia	—	8	1.46
NTT PERTH1 Park	NTT	Perth, Australia	—	12	1.24
NTT PERTH11	NTT	Perth, Australia	H100	10	1.50
NTT PERTH13	NTT	Perth, Australia	L40S	15	1.34
NTT PERTH17 Annex	NTT	Perth, Australia	A100	15	1.23
NTT BATAM5 Central	NTT	Batam, Indonesia	B200	15	1.26
NTT BATAM9 Annex	NTT	Batam, Indonesia	MI300X	9	1.48
NTT KUALA15 Central	NTT	Kuala Lumpur, Malaysia	B200	7	1.43
NTT KUALA19 South	NTT	Kuala Lumpur, Malaysia	A100	6	1.51

Showing 100 of 109.

[FAQ]

How many datacenters does NTT operate?

109 indexed facilities totaling 1,618 MW across 27 countries.

Which GPUs does NTT deploy?

H100, B200, H200, MI300X, L40S, A100

In which countries does NTT operate?

Australia, Austria, Bulgaria, China, Croatia, Estonia, Finland, France, Germany, Hong Kong, India, Indonesia, Ireland, Japan, Kazakhstan, Malaysia, Netherlands, Poland, Singapore, South Korea, Spain, Sweden, Switzerland, Taiwan, Thailand, United Kingdom, Vietnam

[Knowledge Graph]

Company → Datacenter → GPU → Customer → Industry

Every entity on this site is cross-linked. Follow the graph from operators down to specific facilities, GPU clusters, customers, and sectoral context.