Retelit S.p.A.: Retelit Milan Data Center (Avalon Campus)

Retelit’s Avalon Campus in Milan is a strategically positioned data center cluster operated by Retelit, one of Italy’s leading telecommunications and digital infrastructure firms. Composed of three interconnected campuses (Avalon 1, 2, and 3) located around Milan (including in Caldera and Via Bisceglie), it functions as Italy’s largest interconnection hub for carrier-neutral colocation. The facility benefits from excellent connectivity to national and international fiber networks, proximity to Milan’s business and industrial hubs, and direct access to the Milan Internet eXchange (MIX). Its positioning makes it essential for enterprises, cloud providers, OTTs, ISPs and content platforms needing low latency regional reach.

⚙️ Facility Highlights

• Power Capacity:
• Avalon 1 supports ≈ 4.3 MW to ≈ 7.35 MW (depending on source) of power capacity. 
• Avalon 2 offers about 650 kW of IT power. 
• Avalon 3 offers ≈ 3.2-4.65 MW of IT power. 
• Space / Layout:
• Avalon 1 spans ≈ 58,900 sq ft (≈ 5,470 m²). 
• Avalon 3 is about 19,375 sq ft. 
• High rack density: up to ~9 kW per rack in Avalon 2. 
• Cooling & Efficiency:
• Hot/cold aisle containment used, especially in Avalon 2. 
• Renewable energy powers the whole Campus. 
• Redundancy & Resilience:
• Redundant power feeds, UPS, generators in multiple facilities. 
• Redundant cooling systems. 
• Sustainability / Innovation:
• Waste heat recovery in Avalon 3: will supply district heating to ~1,250 households, projected for early 2026. 
• All facilities use 100% green energy from renewable sources. 

🔐 Security & Compliance

• Certifications:
• Avalon 3 is certified ISO 27001, ISO 9001, LEED Gold and has Tier IV Design by Uptime Institute. 
• Retelit more broadly holds certifications for information security, environmental management, energy management, health & safety etc. 
• Physical Security:
• 24/7 onsite security personnel. 
• CCTV monitoring throughout key areas. 
• Access is restricted / multi-stage / through controlled authorization. 
• Digital / Operational Compliance:
• Business continuity standards like ISO 22301 (Avalon 1)
• Robust monitoring, redundant systems to ensure uptime and low risk of interruption. 

🌐 Connectivity & Carrier Access

• Carrier-Neutral Infrastructure: The Avalon Campus is fully carrier-neutral; over 165 national and international operators, cloud providers, ISPs and OTTs are hosted
• Fiber Entry & Redundancy: Distributed optical infrastructure interconnects all Avalon buildings; dual-path fiber links between Avalon 1, 2, 3; multiple independent paths.
• Internet Exchange Access: Direct connection to Milan Internet eXchange (MIX), enabling efficient peering. 
• Interconnection Services: Custom cages, racks, wholesale & colocation, cloud exchanges; support for public cloud interconnects (Azure, AWS, Google). 

💼 Who It Serves

• OTT & Media Providers seeking high bandwidth, low latency access in Italy and Europe. 
• Cloud and Hyperscale Providers needing scalable capacity and interconnection into public clouds. 
• Telecom operators, ISPs, resellers who need to colocate equipment in a central, neutral hub with access to many carriers. 
• Large enterprises demanding secure, compliant, high-availability infrastructure (finance, manufacturing, digital services).