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4,573 tracked

Entities

Registers of the facilities, companies and countries on record, with the ownership chains between them.

709 of 4,257 facility records have an operational measure

4,257 facility records are individually browsable here, of which 709 have an operational measure: power, GPU or FLOP capacity, or a substantive description. The other 3,548 establish that a site exists and stop there. Which of the two a record is depends almost entirely on the catalogue it arrived in.

Two counts on this page

Two counts appear on this page and they are not the same quantity. The masthead stamps 4,573 tracked records: the full corpus across 110 countries, the figure used site-wide. The register and the plate count the 4,257 that are individually browsable; the 316 in between are rows a licensing term keeps from being served as their own record. They inform aggregates and they are not hidden. They cannot be opened, so a figure about what a reader can inspect must not count them. The same universe is plotted in space on the map, rolled up by jurisdiction on Countries, and the organisations that own and operate these sites are in the company register.

  1. Epoch AI Frontier Data Centers7064 measured91.4%
  2. Epoch AI GPU Clusters437396 measured90.6%
  3. PeeringDB facility registry1,56963 measured4.0%
  4. IM3 / PNNL data-center corpus3912 measured0.5%
  5. OpenStreetMap (tagged data centers)1,1731 measured0.1%
  6. OpenStreetMap2310 measured0.0%
  7. Microsoft Azure region documentation560 measured0.0%
  8. Oracle Cloud region documentation450 measured0.0%
  9. 43 smaller catalogues285183 measured64.2%

Coverage by catalogue. Each band is one catalogue: its length is that catalogue’s share of the largest one’s row count, and the inked run inside it is the rows with at least one operational measure.

Nothing here is schematic; both lengths are measured proportions of the counts printed beside them.

No share-of-megawatts is drawn: every megawatt-bearing row satisfies the measured predicate by construction, so a capacity share would be a tautology.

Counts cover the full individually-browsable set, 4,257 rows, read 4 September 2026.

The smallest catalogues are folded into one band whose run is hatched, because it averages catalogues of both kinds. Each named catalogue’s key opens the register below scoped to its rows.

Epoch AI Frontier Data Centers runs 91.4% measured across 70 records; OpenStreetMap runs 0.0% across 231. No single catalogue falls in between; the hatched band does, but it is the fold of 43 smaller catalogues and reads mid-scale only because it averages the two kinds. The separation exists because the two kinds of catalogue do different jobs: one is a research dataset built by measuring sites, the other an infrastructure registry built by recording that they exist.

Shown whole, most of the 4,257 rows could not answer the question a reader arrived with. The positional records are not filler: a site that exists is a real fact, and for a governance reader tracing where capacity might appear it is often the fact that matters. But it is a different fact from a megawatt figure, and a register that prints them in one undifferentiated count makes a uniformity claim its records do not support.

The register

Showing all 198 matching records, including the 184 positional ones with no capacity figure attached. Show only the 14 measured.

150 of 198Page 1 of 4
FacilityCountryTypeStatusPower (MW)
Nscale LoughtonEpoch AI GPU ClustersGBAI trainingAnnounced90
Google Waltham CrossEpoch AI Frontier Data CentersGBAI trainingOperational88
Equinix LD5 (London)Company disclosure (press / IR)GBColocationOperational12
University of Bristol Isambard-AIEpoch AI GPU ClustersGBAI trainingOperational8
Northern Data Group Njored Taiga Cloud Island 5Epoch AI GPU ClustersGBAI trainingOperational3
NVIDIA Cambridge-1Epoch AI GPU ClustersGBAI trainingOperational1
University of Edinburgh DiRAC TursaEpoch AI GPU ClustersGBAI trainingOperational0
University of Cambridge Wilkes-3Epoch AI GPU ClustersGBAI trainingOperational0
University of Oxford Jade2Epoch AI GPU ClustersGBAI trainingOperational0
AWS Europe (London)AWS region documentationGBHyperscale DCOperational
AZURE UK SouthMicrosoft Azure region documentationGBHyperscale DCOperational
AZURE UK WestMicrosoft Azure region documentationGBHyperscale DCOperational
GCP Europe West 2Google Cloud region documentationGBHyperscale DCOperational
OCI UK West (Newport)Oracle Cloud region documentationGBHyperscale DCOperational
OCI UK South (London)Oracle Cloud region documentationGBHyperscale DCOperational
CoreWeave Crawley UK (Digital Realty)Company disclosure (press / IR)GBAI trainingOperational
Alibaba Cloud in United KingdomEpoch AI GPU ClustersGBAI trainingOperational
Cambridge Dawn Phase 2Epoch AI GPU ClustersGBAI trainingAnnounced
Equinix LD10 (London / Slough)Equinix SEC 10-K (2024)GBColocationUnder construction
Equinix LD14 (London)Equinix SEC 10-K (2024)GBColocationUnder construction
Braham Street Data CentreOpenStreetMapGBColocationOperational
RBS Melville Gate Data CentreOpenStreetMapGBColocationOperational
DataVita DV2OpenStreetMapGBColocationOperational
US Air ForceOpenStreetMapGBColocationOperational
iomart Glasgow Data CentreOpenStreetMapGBColocationOperational
Tata Communications Highbridge DatacentreOpenStreetMapGBColocationOperational
Joule HouseOpenStreetMapGBColocationOperational
Starwood HouseOpenStreetMapGBColocationOperational
Pulsant South LondonOpenStreetMapGBColocationOperational
SkywaysOpenStreetMapGBColocationOperational
RBS Data CentreOpenStreetMapGBColocationOperational
Digital Space Data CentreOpenStreetMapGBHyperscale DCOperational
CyrusOne LON2OpenStreetMapGBColocationOperational
Telefonica Data CentreOpenStreetMapGBColocationOperational
Digital Realty LHR17OpenStreetMapGBColocationOperational
Virtus London 1OpenStreetMapGBOtherOperational
Edinburgh SC-3OpenStreetMapGBColocationOperational
Equinix LD3OpenStreetMapGBColocationOperational
Digital Realty LHR13OpenStreetMapGBColocationOperational
Digital Realty LHR20OpenStreetMapGBColocationOperational
Verne Global London Data CentreOpenStreetMapGBColocationOperational
Telehouse WestOpenStreetMapGBColocationOperational
Pulsant Edinburgh South Gyle SC-1OpenStreetMapGBColocationOperational
Iron Mountain London LON-1OpenStreetMapGBColocationOperational
Morgan Stanley Data CentreOpenStreetMapGBColocationOperational
SantanderOpenStreetMapGBColocationOperational
Centurylink London 1OpenStreetMapGBColocationOperational
Kao Data KLON-06OpenStreetMapGBColocationOperational
VodafoneOpenStreetMapGBColocationOperational
UBS Data CentreOpenStreetMapGBColocationOperational