NTT Hemel Hempstead 1 Data Center (HH1)
Reported capacity and the companies responsible for this site.
TypeColocationStatusOperationalWhereHemel Hempstead, GBIndexed fromPeeringDB facility registry
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Reported capacity and the companies responsible for this site.
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Site data: PeeringDB facility registry.
Site owner
Which organisation holds the site?
Site operator
Which organisation runs it?
AI hardware owner · per catalog
Which organisation owns the AI hardware inside it?
The site’s companies and their recorded parents were checked; no export-control designation, sovereign investment or classified jurisdiction was found. Headquarters country is unrecorded for NTT DATA's Global Data Centers division, leaving its jurisdiction check incomplete.
Power capacity
No power figure is recorded for this site.
Power for IT equipment
Accelerators
Missing fields are compared with this source’s other site records: some fall outside its usual coverage; others are gaps specific to this site.
PeeringDB facility registry contributes 1,569 of the 4,257 indexed facilities in the Aug 14, 2026 snapshot. Bars show the share of its records with each field; labels describe availability for this site.
2 of 6 fields reported · 2 unreported across this source · 2 missing
Title identifies the legal owner of the site; operation identifies who runs it. AI-hardware ownership follows the catalog’s attribution of the machines inside, whose owner may lease the facility.
Each role requires its own attribution. An operator named in a source supplies evidence of operation only.
Ownership checks start with each company named at the site and follow recorded parent relationships. A company holding several roles is checked once. Its linked company page lists the relationships and their sources; further parents may remain undocumented.
Level 1 identifies a company at the site, level 2 its parent, and each further level another parent. Export-control designations and government investments are assigned to the company concerned.
Unrecorded roles remain blank. Findings whose company position is unresolved stay in the list with that position labelled unknown.
Field coverage is measured across all site records contributed by the same source.
Subscription corporate data helps identify parent relationships and sovereign investments. Publication is limited to relationship classes and supporting public sources; licensed records, identifiers and values are withheld.
Other sites are in the facilities directory, and the organisations recorded on this site have records of their own.