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Loudoun County · Data Center Alley · World's Largest Cluster

Ashburn Colocation

The most interconnected data center location on Earth. Equinix's Ashburn campus (DC1-DC15, DC21) hosts 400+ participants including AWS US-East-1, top global telecom carriers, and cloud platforms. Loudoun County hosts 115+ facilities across 27+ million sq ft. The reason every cloud-adjacent enterprise wants Ashburn proximity.

Ashburn Colocation Capacity →
400+
Equinix Participants
115+
Loudoun Facilities
DC1-DC21
Equinix Campus
27M
Sq Ft Total

The Ashburn Equinix Campus (DC1-DC15, DC21)

The foundational interconnection ecosystem of the world's largest data center market

Campus Anchors

  • DC121711 Filigree Court
  • DC1 Size43,356 sq ft total
  • DC1 IT Load2.0 MW
  • DC1544780 Performance Circle
  • Campus RangeDC1-DC15 + DC21
  • Participants400+

Loudoun County Context

  • Total Facilities115+ in Loudoun
  • Operational Sq Ft27+ million
  • Under Construction79+ facilities (NoVA)
  • Cloud AnchorsAWS US-East-1
  • Other OperatorsDigital Realty, CoreSite, QTS, Aligned
  • PositionData Center Alley

Ashburn Colocation Options

Capacity at the world's most interconnected data center campus

Anchor Campus

Equinix Ashburn (DC1-DC15, DC21)

Ashburn, VA — Filigree Court / Performance Circle

The world's densest interconnection ecosystem. 400+ participants including telecom carriers, ISPs, cloud platforms (AWS US-East-1 anchors here), and IT service providers. The reason every other colocation operator wants Ashburn proximity.

99.999% SLA2N Power400+ Participants
FedRAMPSOC 2PCI DSS
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Sponsored

Ashburn Adjacent — Lower Cost

Ashburn / Loudoun — non-Equinix

Carrier-neutral facilities adjacent to the Equinix campus. Direct fibre to the Ashburn ecosystem. Typically 25-40% lower per-cabinet pricing than Equinix while retaining ecosystem proximity.

2N PowerEquinix AdjacentLower Cost
SOC 2FedRAMPPCI DSS
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Sponsored

Hyperscale — North Loudoun

North Loudoun / Sterling

Hyperscale capacity for tenants needing 1MW+. Several major operators have campuses here. Best fit for AWS/Azure/GCP-adjacent AI training workloads where Equinix-tier interconnection isn't required.

2N Power1MW+ FootprintsGPU Ready
SOC 2ISO 27001FedRAMP
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Want to be featured here? Contact partnerships@datacenterspace.io

Ashburn Colocation Pricing

Indicative Ashburn rates (2026). Premium pricing reflects ecosystem density and cloud anchor positioning.

Full Cabinet (42U) — Equinix Ashburn$2,400–$4,500/mo
Full Cabinet (42U) — Ashburn Adjacent$1,500–$2,800/mo
Power (per kW)$185–$340/kW/mo
Cross-Connect$250–$500/mo
AWS Direct Connect / Cloud On-Ramp$300–$650/mo

Ashburn Colocation FAQs

Why is Ashburn the centre of the world's largest data center market?
Three compounding factors: (1) AWS US-East-1 anchors in Ashburn — the largest AWS region globally — pulling massive cloud-adjacent demand, (2) the Equinix Ashburn campus (DC1-DC15, DC21) with 400+ participants is the world's densest interconnection ecosystem, (3) Loudoun County's data center tax incentives. Network effects compound — every operator wants to be in Ashburn because every customer is in Ashburn.
What is the Equinix Ashburn campus?
Equinix's flagship US data center campus, spanning DC1 (21711 Filigree Court) through DC15 (44780 Performance Circle), plus DC21. The campus hosts over 400 participants — telecommunications carriers, ISPs, cloud platforms (including AWS US-East-1), content delivery networks, and IT service providers. It is the foundational interconnection ecosystem for the entire region.
Where exactly is Ashburn?
Ashburn is in Loudoun County, Virginia — about 30 miles west of Washington DC. The data center cluster is concentrated along Waxpool Road, Beaumeade Circle, Performance Circle, Filigree Court and surrounding streets. The area is colloquially known as "Data Center Alley." Loudoun County alone hosts 115+ data centers spanning 27+ million sq ft of operational space.
Should I pay Equinix Ashburn premium or pick adjacent options?
Pay Equinix premium when you need direct cross-connects to the 400+ participants — content delivery, financial services, ISP tenants, and AWS US-East-1 cloud-adjacent workloads. Pick adjacent operators when you need Ashburn ecosystem proximity but can run dark fibre cross-connects rather than physical Equinix cabinets. Adjacent pricing typically runs 25-40% lower.
What about Ashburn power and political constraints?
Loudoun grid capacity is approaching limits. Counties are reviewing data center development policies due to community concerns about land use, water consumption and grid impact. New builds increasingly target neighbouring Prince William County (Manassas), Stafford and Spotsylvania where land and grid capacity are more available. Existing Ashburn capacity remains highly valuable but new build constraints may compress incremental supply over the next 24-36 months.
How do I get an Ashburn colocation quote?
Take the free 2-minute assessment to specify cabinet count, interconnection requirements (Equinix-tier vs adjacent), AWS Direct Connect needs, and federal compliance. We'll match you with capacity at the Equinix campus and across Ashburn-adjacent operators.

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