Data center · Loudoun County, Virginia, United States
Zayo Group, LLC
Zayo Group, LLC is a data center in Loudoun County, Virginia, United States, operated by DataBank Holdings Ltd.
Facts
Every value links to its source, and to the source's own record where it has one. Licences and last-checked dates are per row.
| Fact | Value | Source |
|---|---|---|
| Location | Loudoun County, Virginia | Virginia DEQ issued data center air permits · Public records · checked 24 Oct 2026 |
| Address | 21625 Red Rum Drive, Ashburn, VA 20147 | Virginia DEQ issued data center air permits · record · Public records · checked 24 Oct 2026 |
| Permit date | 4 Aug 2025 (permit number: 73743-7, program: Article 6 - mNSR) | Virginia DEQ issued data center air permits · record · Public records · checked 24 Oct 2026 |
| Operator | DataBank Holdings Ltd | Virginia DEQ issued data center air permits · record · Public records · checked 24 Oct 2026 |
| Backup generators | 145 MW (55 generator sets, permit number: 73743-7) | Virginia DEQ issued data center air permits · record · Public records · checked 24 Oct 2026 |
| Coordinates | 39.0167, -77.4824 | US Census Bureau Geocoder · Public domain · checked 24 Oct 2026 |
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How its operator compares
DataBank Holdings Ltd operates 2 of the 244 data centers in the United States in our data with a named owner; 12 owners have more. Counts cover the data centers in our data that name an owner, holder or operator; an asset with several owners counts for each.
| Operator in United States | Rank | Data centers | Share |
|---|---|---|---|
| Amazon Data Services, Inc. | 1st | 52 | 21% |
| Microsoft Corporation | 2nd | 21 | 8.6% |
| 3rd | 19 | 7.8% | |
| Meta | 4th | 17 | 7% |
| CoreWeave | 5th | 8 | 3.3% |
| DataBank Holdings Ltd | 13th | 2 | 0.82% |
Timeline
Dated facts about this data center from its sources, oldest first.
- Air permit to build issued (minor new source review), no. 73743-7
- DataBank Holdings Ltd on record as operator
Nearby
Within 50 km of this data center: 2 power plants (1 operating, 812 MW), measured from the coordinates in the facts above.
| Name | Kind | Size | Status | Distance |
|---|---|---|---|---|
| Potomac Energy Center, LLC | Power plant | 812 MW | Operating | 7.1 km |
| Dulles Solar and Storage | Power plant | 150 MW | Under construction | 7.6 km |
Operator and place
More from DataBank Holdings Ltd
- DataBank Data Center Culpeper LLCdata center
Other data centers in Virginia
Data on this page
- Source: U.S. Energy Information Administration (Sep 2026). EIA-860 / 860M / 923, Public domain.
- Epoch AI. Epoch AI data centers, CC BY 4.0.
- US Census Bureau Geocoder. US Census Bureau Geocoder, Public domain.
- Virginia DEQ issued data center air permits. Virginia DEQ issued data center air permits, Public records.