Barcelona · Spain
PeeringDB records seven internet exchanges in Barcelona and seven facilities holding 90 network presences. BGP.Exchange - Barcelona has the most participants at 56, with CATNIX close behind at 52 and DE-CIX Barcelona at 41. An address that geolocates to Barcelona reflects what its operator registered for that block, not where a device sits.
Internet exchanges in Barcelona
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 |
|---|---|---|
BGP.Exchange - Barcelona | 56 | none in the registry |
CATNIX Catalunya Neutral Internet Exchange | 52 | |
DE-CIX Barcelona | 41 | none in the registry |
Barcelona-IX Barcelona IXP | 26 | none in the registry |
Equinix Barcelona Equinix Internet Exchange Barcelona | 11 | none in the registry |
ESpanix Barcelona Lower LAN Barcelona Lower LAN | 2 | none in the registry |
ESpanix Barcelona Upper LAN Barcelona Upper LAN | 2 | 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 BA1 - Barcelona | 73 | Carrer de l'Acer 30-32 |
| CSUC Campus Nord | 9 | Gran Capita, 2 - 4 (Edifici Nexus) |
| Templus DC Barcelona BCN02 | 4 | Acero 5-9 |
| MERLIN Edged BAR01 - Barcelona-PLZ | 2 | Av. Parc Logístic, 42 Distrito de Sants-Montjuïc |
| iDataGreen | 1 | Carrer Acer, 30, planta 3 |
| Adam - BCN | 1 | Travessera de Gràcia 342 |
| Equinix BA2 - Barcelona | 0 | Carretera del Mig 219 L'Hospitalet de Llobregat Barcelona |
What a Barcelona IP address tells you
Barcelona spreads its peering across seven exchanges without one dominating. BGP.Exchange - Barcelona counts 56 participants, CATNIX 52, DE-CIX Barcelona 41 and Barcelona-IX 26, with Equinix Barcelona at 11 and the two ESpanix Barcelona LANs at two each. Colocation is thinner than the exchange count suggests, as seven facilities hold 90 network presences and Equinix BA1 accounts for 73 of them. CATNIX is where Spain's mobile networks meet, with Movistar on AS3352, Orange Spain on AS12479 and Vodafone Spain on AS12430 all peering there.
An address that geolocates to Barcelona describes an operator's registry entry rather than a measured position. The operator announces the block, states a location for it, and geolocation databases repeat that location. Mobile addresses stretch furthest from the label, because Movistar, Orange Spain and Vodafone Spain carry subscribers from across Spain out through a small set of gateways, so the same Barcelona-registered range can appear on traffic from anywhere the network reaches.
Check the origin ASN and the netname on the prefix instead of the city field. A prefix originating from AS3352, AS12479 or AS12430 is mobile and national in scope, and its Barcelona label carries no more weight than a Madrid one would. A prefix belonging to a network with a presence in Equinix BA1 or one of the other six facilities points at a building, which is a firmer piece of evidence than a database city.
Mobile carriers in Spain
A mobile address in Barcelona 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 Barcelona?
PeeringDB lists seven. BGP.Exchange - Barcelona has 56 participants, CATNIX 52, DE-CIX Barcelona 41 and Barcelona-IX 26, while Equinix Barcelona has 11 and the ESpanix Barcelona Lower and Upper LANs two apiece. The snapshot counts 190 peers in the city across all seven.
Do Spanish mobile carriers peer in Barcelona?
Yes, at CATNIX. Movistar (AS3352), Orange Spain (AS12479) and Vodafone Spain (AS12430) are all recorded on that exchange, and it is the only Barcelona exchange in the snapshot where any of the three appear. Their presence says where their traffic meets other networks, not where subscribers are.
Does an IP that geolocates to Barcelona mean the device is there?
No. The city comes from the location an operator published for the address block, and databases copy that. On mobile ranges the gap is widest, since Spanish operators aggregate subscriber traffic through a few gateways and the registered city can differ from the region the handset is connected in.
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