RadiusDC: Atlanta Data Center

RadiusDC Atlanta Data Center at 55 Marietta St. NW in Atlanta, Georgia is a downtown carrier hotel and colocation facility positioned at one of the Southeast’s most important connectivity hubs. The facility supports network operators, carriers, content platforms, hyperscale infrastructure deployments, and enterprise IT environments that require dense interconnection in central Atlanta. Located in the city’s established telecom corridor, 55 Marietta functions as a bandwidth aggregation point for regional and national network traffic.

The facility includes a 403,000 sq ft, 21-story mission-critical building with 10 MW of current utility capacity expandable to 18 MW. RadiusDC lists 6–9 MW of new Critical IT capacity, up to three data halls, two meet-me rooms, and floor loading that supports up to 200 lbs per sq ft. The building is served by Georgia Power and offers contiguous capacity of 5+ MW, a notable differentiator in downtown Atlanta’s constrained data center market.

Connectivity is the central advantage of RadiusDC Atlanta. The facility provides access to 22+ on-net carriers, including Arelion, AT&T, CenturyLink, Crown Castle, Fiberlight, Southern Telecom, Uniti Fiber, Windstream, and Zayo. Its position near 56 Marietta strengthens access to the broader downtown interconnection ecosystem, where major colocation and telecommunications facilities concentrate network routes across the Southeast. RadiusDC’s planned utility expansion adds capacity for AI, high-performance compute, content delivery, network edge, and carrier infrastructure deployments requiring proximity to Atlanta’s densest fiber routes.

🏢 Facility Highlights

1. Building Size: 403,000 sq ft
2. Building Format: 21-story mission-critical carrier hotel
3. Power Capacity: 10 MW current utility capacity, expandable to 18 MW
4. Critical IT Capacity: 6–9 MW of new Critical IT capacity
5. Meet-Me Rooms: Two meet-me rooms
6. Data Halls: Up to three data halls
7. Floor Loading: Up to 200 lbs per sq ft

🌐 Connectivity & Carrier Access

1. Carrier Ecosystem: 22+ on-net carriers
2. Carrier Access: Arelion, AT&T, CenturyLink, Crown Castle, Fiberlight, Southern Telecom, Uniti Fiber, Windstream, Zayo
3. Network Position: Downtown Atlanta aggregation point for Southeast bandwidth
4. Interconnection Advantage: Immediate proximity to 56 Marietta

🏭 Who It Serves

1. Network Operators: Carrier and fiber infrastructure deployments
2. Content Platforms: Content delivery and low-latency distribution workloads
3. Hyperscale Infrastructure: Expansion capacity in downtown Atlanta
4. Enterprise IT: Colocation environments requiring dense carrier access
5. AI & HPC: High-performance compute deployments requiring scalable power and connectivity

🧠 AI Infrastructure

1. Capacity Expansion: Planned utility expansion supports AI and high-performance compute demand
2. Downtown Interconnection: Carrier-dense location supports latency-sensitive AI infrastructure
3. Contiguous Capacity: 5+ MW contiguous capacity supports larger deployments

🛰️ Network Position

1. Downtown Atlanta: Located at 55 Marietta St. NW
2. Southeast Connectivity Hub: Positioned near the most connection-rich building in the Southeast
3. Carrier Hotel Role: Serves as a primary bandwidth aggregation point

🏗️ Recent Expansions

1. RadiusDC Acquisition: RadiusDC acquired the 55 Marietta carrier hotel in 2025
2. Utility Expansion: Planned 8 MW capacity addition increases total capacity to 18 MW
3. Platform Growth: Atlanta became RadiusDC’s fourth strategic location alongside Miami, Nashville, and Denver