Data center campus · 55 Marietta Street NW, downtown Atlanta, Fulton County, Georgia
CoreSite AT1 (55 Marietta Street)
Operating
as of Nov. 3, 2026
A CoreSite colocation facility of more than 62,000 sq ft at 55 Marietta Street in downtown Atlanta. Also known as: AT1.
PowerNot statedNot reported in the records found
Floor area62,000sq ft
Who is behind it
ProjectCoreSite AT1 (55 Marietta Street)Also: AT1
Developer and teamCoreSite
End userNot found in the recordsNot yet named in any record or credited report we have found.
The record, newest first
When checked, CoreSite's site page listed the address and size and offered colocation there. (CoreSite, Nov. 3, 2026)
Conflicts and open questions
- The page gives no power figure and no explicit status; it presents the site as selling colocation now. Different building from Digital Realty's 56 Marietta Street.
The full record
- Status note
- CoreSite presents the site as selling colocation now. The operator gives no opening date, so this status date is when we checked its page.
- Evidence
- Primary public records
- Size class
- Under 50 MW (outside main scope; kept for completeness)