Data sources and methods

How often the data is updated

The directory is rebuilt from fresh downloads of every source, then checked by automated tests before it is published. The data on the site was compiled on 2026-09-28; every page shows this date at the bottom. Each facility page names the sources its record was built from, so you can check any listing against its original.

How records are merged

Listings from different sources are combined into one record when they describe the same facility: the same operator and facility code; the same name within a short distance; the same operator and name in the same city when one listing has only an approximate location; or the same operator and site code (for example VA1 or LD11x) within one kilometre. Listings from two different operators are never merged, even in one building, because multi-tenant buildings hold several facilities. When one record replaces another, the old page address forwards to the new one.

How records are classified

Facility type comes from the source: operators' own lists and recognized colocation brands give colocation; sites owned by Google, Microsoft, Amazon, Meta, Apple and Oracle are hyperscaler; providers' region lists give cloud region; named organizations that run their own site (banks, universities, public bodies, and Uptime-certified companies that are not colocation providers) are enterprise. 3,003 of 8,251 records (36%) have no type in their sources and are shown as unclassified, mostly map points with no operator.

Status (operational, under construction, planned, announced, closed) comes from the operator's own wording or from OpenStreetMap lifecycle tags; the published wording is shown next to it. Capacity is shown only as published, labelled with what it measures (IT load, utility power, or a whole campus) when the source says so. The building footprint is the area of the building's outline in OpenStreetMap, not a published floor area.

Facility descriptions

The paragraph at the top of a facility page is written by a language model (Anthropic's Claude) from that page's record only: the operator, place, status, capacity, certification, footprint, filings, sources and neighboring facilities shown on the page. Before a description is published it is checked automatically against the record: every figure, name, status and rank in it must appear in the record, and descriptions that repeat one another are rejected. A description that fails is written once more; if it fails again, the page keeps a paragraph assembled from the record's fields instead. Descriptions are rewritten only when the record changes.

Known gaps

Out of 8,251 listed facilities: 2,073 (25%) have no operator recorded, 4,526 (55%) have no street address, 2,829 (34%) have no exact location (only a city or area center, or none), and 6,839 (83%) have no published capacity. 897 have no city; for 1,698 others the city was taken from the coordinates, which the facility page says. 1,202 records (15%) combine listings from two or more sources, and 2,817 (34%) have a mapped building outline in OpenStreetMap.

Coverage is most complete where operators publish their own facility lists and where OpenStreetMap is mapped in detail. It is weakest where operators publish only city names: among countries with at least 40 listings, the highest shares without an exact location are in China (74% without an exact location), Colombia (67% without an exact location), Hong Kong (61% without an exact location), Indonesia (58% without an exact location) and Thailand (58% without an exact location). Several large operators in Japan, South Korea and Hong Kong do not publish machine-readable facility lists, so those markets are under-counted.

1,742 records are listed by name on their city, state or country page but have no page of their own, because such a page would carry too little information (for example no name, or no operator, address or capacity), or because the record may not be a data center or is reported closed. 637 unnamed map points with no operator and no address are kept in the data but have no page.

Corrections

If a listing is wrong, use the contact form (every facility page has a "Report an error" link that fills in the page address). Corrections are checked against the sources and applied in the next rebuild; operators can also ask for a listing to be corrected or removed.