IAD · Ashburn · PeeringDB captured 2026-11-10
CoreSite - Reston (VA3) colocation
15 networks and 3 internet exchanges on site, operated by CoreSite. Get blind counter-quotes for space here, or in a nearby building that cross-connects to it.
Get 3+ blind quotes- Operator
- CoreSite
- Address
- 12369 Sunrise Valley Dr, Reston, VA, 20191-3415
- Metro
- Ashburn
- Networks on site
- 15 (rank 8 of 18 we track in Ashburn)
- Internet exchanges
- 3
- Carriers listed
- 3
- Property
- Owner
- Operator site
- www.coresite.com
PeeringDB facility record. Networks, exchanges and carriers on site as listed in PeeringDB, captured 2026-11-10. Counts are self-reported by the networks and operators.
Other well-connected Ashburn facilities
| Facility | Operator | Address | Networks | Exchanges | Carriers | |
|---|---|---|---|---|---|---|
| Equinix DC1-DC15,DC21-DC22 - Ashburn | Equinix, Inc. | 21715 Filigree Ct, Ashburn, VA | 526 | 9 | 14 | PeeringDB |
| CoreSite - Reston (VA1) | CoreSite | 12100 Sunrise Valley Drive, Reston, VA | 85 | 6 | 5 | PeeringDB |
| DataBank Ashburn (IAD1) | DataBank, Ltd. | 21635 Red Rum Dr., Ashburn, VA | 38 | 2 | 2 | PeeringDB |
| RagingWire VA1 - NTT | RagingWire Data Centers - NTT | 44664 Guilford Drive, Ashburn, VA | 27 | 1 | 2 | PeeringDB |
| CoreSite - Reston (VA2) | CoreSite | 12098 Sunrise Valley Drive, Reston, VA | 21 | 3 | 2 | PeeringDB |
| Iron Mountain Data Center - Manassas (VA-1) | Iron Mountain Data Centers | 11680 Hayden Road, Manassas, VA | 18 | 2 | 3 | PeeringDB |
| Digital Realty IAD 39 (44274 Round Table) | Digital Realty | 44274 Round Table Plaza, Ashburn, VA | 16 | 3 | 3 | PeeringDB |
| Centersquare Northern Virginia (IAD4) | Centersquare | 21571 Beaumeade Circle, Ashburn, VA | 11 | 1 | 1 | PeeringDB |
| Digital Realty IAD (44100 Digital Loudoun) | Digital Realty | 44100 Digital Loudoun Plaza, Ashburn, VA | 11 | 2 | 1 | PeeringDB |
| Centersquare Northern Virginia (IAD1-A/F) | Centersquare | 45901 Nokes Blvd., Sterling, VA | 10 | 0 | 1 | PeeringDB |
| CyrusOne Sterling | CyrusOne Inc. | 21111 Ridgetop Circle, Sterling, VA | 9 | 2 | 2 | PeeringDB |
| Digital Realty IAD (44480 Hastings) | Digital Realty | 44480 Hastings Drive, Ashburn, VA | 9 | 2 | 1 | PeeringDB |
| QTS Ashburn (IAD2) | QTS Realty Trust, Inc. | 44874 Moran Road, Sterling, VA | 9 | 2 | 2 | PeeringDB |
| COPT DC-6 | COPT DATA MANAGEMENT, LLC | 9651 Hornbaker Rd, Manassas, VA | 8 | 0 | 2 | PeeringDB |
| Digital Realty IAD (43830 Devin Shafron) | Digital Realty | 43830 Devin Shafron Dr, Ashburn, VA | 8 | 1 | 1 | PeeringDB |
| EvoSwitch WDC1 | EvoSwitch | 9651 Hornbaker Road, Manassas, VA | 8 | 0 | 1 | PeeringDB |
| QTS Ashburn (ASH3) | QTS Realty Trust, Inc. | 22291 Shellhorn Road, Ashburn, VA | 8 | 1 | 1 | PeeringDB |
CoreSite - Reston (VA3) in the Ashburn market
CoreSite - Reston (VA3) is 6.6 mi (10.7 km) from Equinix DC1-DC15,DC21-DC22 - Ashburn, the best-connected of the 18 Ashburn buildings we track (526 networks). 10 of the 15 networks here are also listed there. 3 of its networks are not listed in any other Ashburn building we track.
Nearest Ashburn buildings we track
| Facility | Operator | Distance | Networks | In common with this building |
|---|---|---|---|---|
| CoreSite - Reston (VA2) | CoreSite | 0.4 mi (0.6 km) | 21 | 6 |
| CoreSite - Reston (VA1) | CoreSite | 0.4 mi (0.6 km) | 85 | 8 |
| Centersquare Northern Virginia (IAD1-A/F) | Centersquare | 5.6 mi (9.0 km) | 10 | 1 |
| CyrusOne Sterling | CyrusOne Inc. | 5.8 mi (9.3 km) | 9 | 4 |
| Equinix DC1-DC15,DC21-DC22 - Ashburn | Equinix, Inc. | 6.6 mi (10.7 km) | 526 | 10 |
Straight-line distance between PeeringDB coordinates; a fiber route between buildings is longer. Networks in common are networks PeeringDB lists in both buildings, captured 2026-11-10.
Networks listed here and in no other Ashburn building we track
If you need one of these on-net, this building is the place to ask for it, or the starting point for a circuit to a nearby facility.
Carriers and networks in CoreSite - Reston (VA3)
PeeringDB lists 15 networks with a presence here: carriers, clouds, content networks and ISPs you can reach with an in-building cross-connect instead of a circuit. Captured 2026-11-10.
- Cogent Communications, Inc.
- Community IX Holdings
- CoreSite
- MediaMath
- Megaport Global Access
- Meta
- Microsoft
- PacketFabric
- Rakuten
- ROBLOX
- Seagate
- The Trade Desk
- ViaSat
- Whatbox Inc.
- Zayo
Need a specific carrier or cloud on-net? Name it in the quote form and only facilities that have it will bid.
Questions about CoreSite - Reston (VA3)
PeeringDB lists 15 networks, 3 internet exchanges and 3 carriers at this facility (captured 2026-11-10). Every one of them is reachable with an in-building cross-connect.
PeeringDB lists 15 networks here, including Cogent Communications, Inc., Megaport Global Access, Meta, Microsoft, PacketFabric, Zayo, Community IX Holdings, CoreSite. The full list is on this page, each linked to its PeeringDB record.
Of the Ashburn buildings we track, PeeringDB lists 3 networks only here, including MediaMath, Rakuten, Seagate (captured 2026-11-10).
Pricing is quoted per deal, so the honest answer comes from bids. As a benchmark, Retail full racks generally run $900 to $2,000 a month, and all-in pricing averages about $250 per kW per month (Inflect, 2026-04-01). Where power is metered, Ashburn utility rates add about $72 per committed kW per month at 70% draw and a billed PUE of 1.4. Digital Realty's Q2 2026 filing reports $293/kW for new Americas contracts under 1 MW and $156/kW above 1 MW (Form 8-K): small footprints pay more per kW.
The nearest Ashburn buildings we track are CoreSite - Reston (VA2), 0.4 mi (0.6 km) away, with 6 networks in common; CoreSite - Reston (VA1), 0.4 mi (0.6 km) away, with 8 networks in common; Centersquare Northern Virginia (IAD1-A/F), 5.6 mi (9.0 km) away, with 1 networks in common. Cross-connecting to a carrier hotel from a nearby facility is often cheaper than a cabinet inside it.
Suppliers see the technical spec only until you consent: never your name, email, phone or company, and never a file you upload. With your written consent we register the opportunity under your company name with the suppliers we matched, then introduce you. Name this building in the notes and we'll invite it alongside the other facilities that fit.