Ashburn · United States
PeeringDB records six exchanges in Ashburn. Equinix Ashburn is the best connected and holds 347 of the city's 469 participant records, ahead of NVIX at 60 and MegaIX Ashburn at 45, while 36 facilities hold 698 network presences. An Ashburn geolocation usually marks a registered block or a rack, not a person.
Internet exchanges in Ashburn
An exchange is a shared switch where networks hand traffic to each other directly. Participant counts come from PeeringDB, where each network maintains its own record.
| Exchange | Participants | Registry carriers peering |
|---|---|---|
Equinix Ashburn Equinix Internet Exchange Ashburn | 347 | |
NVIX | 60 | none in the registry |
MegaIX Ashburn Megaport MegaIX Ashburn | 45 | none in the registry |
Digital Realty Ashburn Digital Realty Ashburn Internet Exchange | 10 | none in the registry |
Miaowoo Ashburn Miaowoo Internet Exchange Ashburn | 4 | none in the registry |
Gig IX Ashburn | 3 | none in the registry |
Exchange records: PeeringDB.
Colocation facilities
Buildings where networks put equipment. The network count is how many PeeringDB members list a presence there, which shows where capacity in the city sits.
| Facility | Networks present | Address |
|---|---|---|
| Equinix DC1-DC15,DC21-DC22 - Ashburn | 516 | 21715 Filigree Ct Building F |
| DataBank Ashburn (IAD1) | 36 | 21635 Red Rum Dr. |
| RagingWire VA1 - NTT | 25 | 44664 Guilford Drive |
| Digital Realty IAD 39 (44274 Round Table) | 16 | 44274 Round Table Plaza |
| Digital Realty IAD (44100 Digital Loudoun) | 11 | 44100 Digital Loudoun Plaza Building J |
| Centersquare Northern Virginia (IAD4) | 10 | 21571 Beaumeade Circle Bldg. A |
| Digital Realty IAD (44480 Hastings) | 9 | 44480 Hastings Drive |
| Digital Realty IAD (43830 Devin Shafron) | 8 | 43830 Devin Shafron Dr Building F |
| QTS Ashburn (ASH3) | 7 | 22291 Shellhorn Road |
| Digital Realty IAD (44521 Hastings) | 6 | 44521 Hastings Drive |
| Digital Realty IAD (43791 Devin Shafron) | 6 | 43791 Devin Shafron Drive Building D |
| Sabey Intergate.Ashburn | 5 | 21741 Red Rum Dr |
Showing the 12 facilities with the most networks, of 36 recorded.
What a Ashburn IP address tells you
One exchange carries most of Ashburn's peering. Equinix Ashburn lists 347 participants against 469 participant records for the whole city, leaving NVIX at 60, MegaIX Ashburn at 45 and three smaller exchanges with 17 between them. Facility density is the other half of the picture. The Equinix DC campus alone lists 516 networks, more than two thirds of the 698 network presences across 36 facilities, with DataBank IAD1 next at 36. T-Mobile's AS6614 is among the participants at Equinix Ashburn, and no ASN from the AT&T or Verizon mobile lists appears.
An address that geolocates to Ashburn is often a machine in one of those buildings rather than a person nearby. Hosting and cloud networks register whole ranges against a facility address, and a service running there answers from the block whoever is using it. Mobile addresses work the other way round. Traffic from a wide serving area leaves through a few gateways, and the operator publishes one location for the block, which geolocation databases copy without knowing where the handset was.
Read the origin ASN before the city field. A prefix announced by a network present on the Equinix DC campus tells you a server sits in a recorded facility and nothing about a subscriber. A prefix announced by one of the mobile ASNs in the registry, such as T-Mobile's AS6614 or Verizon's AS6256, is a consumer range whose published city can stand for a whole serving area. The netname and registered holder on the exact prefix separate those two cases faster than any city lookup.
Mobile carriers in the United States
A mobile address in Ashburn is routed by one of the country's operators. Each entry lists the operator's ASNs, so you can check which network an address belongs to.
Questions
Which internet exchanges are in Ashburn?
PeeringDB lists six. Equinix Ashburn has 347 participants, NVIX 60, MegaIX Ashburn 45, Digital Realty Ashburn 10, Miaowoo Ashburn 4 and Gig IX Ashburn 3. That is 469 participant records, three quarters of them at Equinix Ashburn.
Do United States mobile carriers peer in Ashburn?
T-Mobile does. Its AS6614 is a participant at Equinix Ashburn. No mobile ASN listed for AT&T or Verizon appears at an Ashburn exchange, though carriers commonly interconnect privately inside facilities and PeeringDB does not record those links.
Does an IP that geolocates to Ashburn mean the device is there?
Not by itself. Ashburn holds 698 network presences across 36 facilities, so many addresses there belong to servers rather than residents, and mobile blocks carry the operator's published city. The origin ASN on the prefix is the more useful signal.
Sources
- PeeringDB - exchanges, participant counts, facilities and network presence, snapshot 2026-09-07
- PROXIES.SX carrier and ASN registry - operator ASNs used to match peering participants