Multi-tenant facility where companies rent space, power, and cooling for their equipment.
Detailed Explanation
Colocation data centers represent a critical infrastructure solution for enterprises seeking flexible, scalable, and cost-effective computing environments. Unlike traditional enterprise-owned facilities, these multi-tenant spaces allow organizations to leverage sophisticated infrastructure without massive upfront capital investments. A typical colocation facility provides companies with secure rack space, high-density power distribution, advanced cooling systems, robust network connectivity, and comprehensive physical security—all managed by specialized data center operators. The core value proposition of colocation centers lies in their ability to democratize enterprise-grade infrastructure. Businesses can access state-of-the-art facilities that would be prohibitively expensive to build and maintain independently. Modern colocation providers often operate massive campuses, with some facilities exceeding 300,000 square feet and supporting power loads of 50-100 megawatts. This scale enables economies of magnitude that individual organizations cannot replicate, driving down per-kilowatt operational costs. Pricing in the colocation market typically follows a predictable model based on rack space, power consumption, and connectivity requirements. Customers might pay anywhere from $100 to $1,500 per rack per month, depending on location, density, and included services. Metropolitan markets like Northern Virginia, Silicon Valley, and Chicago command premium rates due to their robust fiber connectivity and proximity to major internet exchanges. Wholesale colocation segments, which cater to hyperscale cloud providers and large enterprises, often involve leasing entire data halls with more customized infrastructure configurations. The technological sophistication of modern colocation centers extends far beyond basic rack-and-stack services. Advanced facilities offer intelligent power monitoring, remote hands support, comprehensive compliance frameworks, and seamless interconnection with major cloud platforms. Many providers now integrate sophisticated environmental monitoring systems, real-time security tracking, and predictive maintenance technologies that significantly enhance operational reliability. For enterprise technology leaders, colocation represents a strategic approach to infrastructure management. By outsourcing complex facility operations, organizations can redirect capital and human resources toward core business objectives. This model particularly benefits mid-market companies and rapidly scaling startups that require enterprise-grade infrastructure without enormous upfront investments. The flexibility to rapidly scale infrastructure—adding or reducing capacity within weeks rather than months—provides a significant competitive advantage in dynamic market environments. The global colocation market continues to experience robust growth, with industry analysts projecting the sector to reach approximately $65 billion by 2025. Emerging trends like edge computing, increased data sovereignty requirements, and the continued digital transformation of traditional industries are expected to drive sustained expansion. As cloud migration accelerates and computational demands become more complex, colocation data centers will remain a pivotal component of modern enterprise technology strategy.
Colocation Data Center in the DC Atlas data
5,438 of the 6,800 facilities we hold this record for — colocation facilities
Every facility DC Atlas classifies as colocation — multi-tenant space sold by the cabinet, cage or suite.
Live
52,577MW
15% modelled
Under construction
29,379MW
Planned
9,403MW
Total potential
95,419MW
21% of pipeline modelled
Across 94 countries and 264 markets, run by 830 operators.
The 969 largest of these by recorded capacity, coloured by status. Every one links to its facility page.
Operators
- Equinix291 sites · 2,551 MW
- China Telecom268 sites · 1,966 MW
- Digital Realty259 sites · 3,913 MW
- Lumen176 sites · 1,117 MW
- DataBank91 sites · 1,049 MW
- Cogent83 sites · 178 MW
- Csquare81 sites · 1,788 MW
- Stack Infrastructure70 sites · 3,857 MW
- GDS69 sites · 1,191 MW
- EXA Infrastructure55 sites · 127 MW
Markets
- London195 sites · 3,178 MW
- Northern Virginia191 sites · 8,915 MW
- Dallas/Fort Worth108 sites · 2,272 MW
- Northern California107 sites · 1,845 MW
- São Paulo103 sites · 1,228 MW
- Chicago100 sites · 3,767 MW
- Frankfurt94 sites · 1,470 MW
- Tokyo88 sites · 1,459 MW
- Shanghai81 sites · 1,263 MW
- Paris77 sites · 1,443 MW
Wholesale colocation vs retail colocation
Retail colocation sells space in the units a single customer consumes: a cabinet, a locked cage, a small private suite. The operator supplies power, cooling, security and physical connectivity, and keeps the risk of filling the rest of the hall. Contract lengths are short, densities vary cabinet by cabinet, and interconnection is usually the reason the customer is in that particular building.
Wholesale colocation sells the hall itself, or a whole building, to one tenant on a long lease. The tenant fits it out, runs its own operations inside it and takes the vacancy risk. The commercial shape is much closer to a property lease than to a service contract, and the deal is priced per megawatt rather than per rack.
The two are frequently sold from the same campus by the same company, which is why the distinction confuses buyers. The reliable test is what is being bought: a service with an SLA measured in cabinets, or a shell with power measured in megawatts.
Colocation vs cloud: what you are actually buying
Colocation is a place to put hardware you own. Cloud is capacity you rent on hardware somebody else owns. The comparison is only meaningful once that is settled, because almost every practical difference follows from it — capital versus operating cost, depreciation schedules, who is responsible for a failed drive, and how quickly the footprint can grow or shrink.
Colocation persists alongside cloud for reasons that are physical rather than financial: hardware that has to sit next to a network it cannot leave, regulatory requirements that name a jurisdiction and a building, equipment too specialised or too heavily depreciated to re-buy as a service, and latency budgets measured against a specific interconnection point.
Common questions about Colocation Data Center
- How many colocation data centers are there?
- DC Atlas holds 5,438 colocation facilities across 94 countries and 264 markets, operated by 830 companies. Colocation is the largest class in the dataset by facility count.
- What is the difference between colocation and a data center?
- Colocation is a commercial model, not a building type. Every colocation site is a data center; a data center is only colocation if its space is leased to tenants who install their own equipment. An enterprise facility a bank builds for itself, and a hyperscale campus built for one operator's own platform, are both data centers and neither is colocation.
- How much capacity is in colocation facilities?
- Across the colocation facilities we track, 52,577 MW is live, 29,379 MW is under construction and 9,403 MW is planned, for 95,419 MW of total potential.