Stay Connected in Bilbao

Bilbao's connectivity is solid. That tracks for a mid-sized European city with serious business infrastructure. 4G blankets the city centre, 5G has rolled out across most of greater Bilbao on the major carriers, and cafe WiFi is ubiquitous from the Casco Viejo to the Ensanche. The frustrating bit, for whatever reason, is that Spanish carriers still require passport registration for prepaid SIMs, which can turn a 10-minute errand into an hour if the kiosk staff is busy. Travelers also get caught out by EU roaming rules. They're brilliant if you've got an EU plan, useless if you're coming from the UK, US, or anywhere else. Coverage gets spotty once you head into the hills around Bilbao or out toward the smaller Basque coastal villages. Fair warning. For a long weekend in Bilbao itself, you don't need to overthink this.

Spain has three main mobile networks worth knowing about in Bilbao: Movistar (Telefónica), Vodafone, and Orange. Movistar tends to have the deepest coverage across the Basque Country. That matters if you're planning day trips out to San Sebastián, Gernika, or the coast. They reach into the valleys and tunnels around Bilbao better than the others. Vodafone is competitive in the city centre and usually clocks the fastest 5G speeds in central Bilbao, often in the 200-400 Mbps range on a good day near the Guggenheim or along Gran Vía. Orange sits in the middle and runs a budget sub-brand called Yoigo that piggybacks on its network. There's also MásMóvil and Lowi (Vodafone's discount arm), which tourists rarely encounter but locals love. Real-world performance in Bilbao is quite good. Video calls work fine on the metro between Abando and Indautxu, streaming holds up at terrace cafes in Plaza Nueva, and you'll likely see LTE rather than 5G inside the older stone buildings of Casco Viejo. Coverage on the Bilbao metro is reliable end to end.

Public WiFi in Bilbao is everywhere. Hotels, cafes along Calle Ledesma, the airport, the Bilbobus and metro stations, even some plazas. That ubiquity is exactly why travelers get targeted. Unencrypted networks let anyone on the same WiFi peek at unencrypted traffic, and tourists checking bank apps or hotel bookings are a known target. Most modern apps and HTTPS websites encrypt traffic by default these days, which helps a lot. But it isn't bulletproof. DNS lookups and connection metadata can still leak. A VPN like NordVPN encrypts everything between your device and their server, which means even on dodgy WiFi the network operator and anyone snooping just sees scrambled traffic. Worth turning on at the airport, in hotel lobbies, and at any cafe where you're doing anything sensitive. For casual browsing of restaurant menus in Casco Viejo, probably overkill.