Alcobendas · Spain
PeeringDB records no internet exchange in Alcobendas and three facilities holding 96 network presences between them. Equinix MD2 - Madrid accounts for 83, DATA4 Madrid-Alcobendas - MAD1 for 12 and Acens Technologies for one. An address that geolocates to Alcobendas reflects an operator's registry entry, not the position of a device.
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 MD2 - Madrid | 83 | Calle Valgrande 6 |
| DATA4 Madrid-Alcobendas - MAD1 | 12 | Av. de la Industria, 15 |
| Acens Technologies | 1 | C/ San Rafael, 14 |
What a Alcobendas IP address tells you
Alcobendas has no exchange in the snapshot, so everything the registry records here sits in colocation. Three facilities hold 96 network presences between them, and Equinix MD2 - Madrid carries 83 on its own, with DATA4 Madrid-Alcobendas - MAD1 at 12 and Acens Technologies at one. With no local exchange, none of Spain's mobile carriers, Movistar on AS3352, Orange Spain on AS12479 and Vodafone Spain on AS12430, has a peering presence in the city; networks in those buildings exchange traffic somewhere else.
An address that geolocates to Alcobendas describes what an operator published for that block. Two of the three facilities carry Madrid in their recorded names, and geolocation databases can place the same address in Alcobendas or in Madrid depending on which record they follow. Mobile addresses drift further still, because Spanish operators announce national ranges and route subscribers through a small number of gateways, so the registered town says little about where a handset is.
The origin ASN answers more than the town name. A prefix announced from AS3352, AS12479 or AS12430 belongs to a mobile network covering all of Spain, and its Alcobendas label is a registration choice. A prefix held by a network with a presence in Equinix MD2 - Madrid or DATA4 Madrid-Alcobendas - MAD1 at least points at a named building, and the netname on that prefix identifies who registered it.
Mobile carriers in Spain
A mobile address in Alcobendas 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
Is there an internet exchange in Alcobendas?
No. PeeringDB records no exchange in Alcobendas and counts zero peers there. What the registry does list is three colocation facilities holding 96 network presences, so networks in the town carry their traffic to an exchange elsewhere rather than meeting locally.
Which data centres are in Alcobendas?
PeeringDB lists three. Equinix MD2 - Madrid records 83 networks, DATA4 Madrid-Alcobendas - MAD1 records 12 and Acens Technologies one, for 96 network presences in total. Two of those names carry Madrid, which is why addresses from these buildings often read as Madrid rather than Alcobendas.
Does an IP that geolocates to Alcobendas mean the device is there?
No. The label comes from the location an operator published for the block, and a database may report the same address as Madrid instead. On Spanish mobile ranges the town is close to meaningless, since subscribers from across the country leave through a handful of gateways.
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