Telefónica has decided to recover a little-visible but highly sensitive piece of its network infrastructure in Spain. The operator has reached an agreement to acquire LineoX, the rural backhaul microwave link platform that Asterion Industrial Partners developed since 2020 after purchasing those assets from Telefónica itself.
The operation has a clear technological significance. With the rapid expansion of 5G networks, increased mobile traffic, more critical services, and greater pressure on connectivity quality, the transport between antennas and the backbone network is no longer a secondary element. Without reliable backhaul, mobile coverage appears on the map but does not always translate into a good user experience.
LineoX operates one of the most extensive rural microwave link networks in Spain. According to the company, it manages 10,800 radio links and a network of over 10,000 links spread across the national territory. Its primary role is providing connectivity in remote, rural, or low-density areas where deploying fiber to each location can be costly, slow, or technically complex.
Microwave technology does not replace fiber in large urban centers or in high-capacity deployments, but it remains a highly useful tool for closing coverage gaps, serving mobile base stations, and connecting business or rural locations to the main network. LineoX claims that its point-to-point links can reach speeds of up to 2 Gbps symmetric—a figure that explains why this type of infrastructure still makes sense on today’s telecom map.
Why backhaul matters in a mobile network
When talking about mobile networks, focus is often on antennas, frequency bands, 5G, or commercial coverage for each operator. But behind every base station, there’s a less visible need: transporting all user-generated traffic to the operator’s core network. That transport layer is the backhaul.
In urban areas, fiber optics is usually the preferred choice due to capacity, stability, and future scalability. In rural areas, however, the situation changes. There are fewer users per square kilometer, greater distances between sites, more complex administrative procedures, and often terrain that raises civil works costs. Microwave links allow connecting distant points without the need to run cables along the entire route.
Telefónica’s reacquisition of LineoX reflects how this network layer is once again regarded as strategic. It’s not enough to just lease capacity if that infrastructure supports essential mobile services, especially in territories with limited technical alternatives. Controlling this asset facilitates investment planning, technological upgrades, and quicker response to issues.
Telefónica has expressed this in terms of controlling critical capabilities, resilience, and long-term leadership. Borja Ochoa, president of Telefónica Spain, has stated that LineoX is a relevant platform for rural connectivity in Spain and that its integration will strengthen the operator’s ability to invest in quality, reliability, and future evolution of its infrastructure.
From selling assets to reacquiring critical capabilities
This move also reveals how the approach of major European telecom operators toward their infrastructure has evolved. In 2020, Asterion acquired from Telefónica a portfolio of about 10,800 microwave links, equivalent to around 13,000 circuits. This transaction was part of a phase marked by selling or spinning off assets to generate cash, reduce debt, and streamline balance sheets.
Asterion later developed LineoX as an independent platform. It integrated it into a wholesale group alongside Axión, which operates in microwave links, towers, broadcasting, and fiber transport. During that period, Telefónica remained a key customer and industrial partner, which makes it clear that although the asset left the corporate perimeter, it remained important to the operator’s network.
Six years later, Telefónica is acting in the opposite direction. The company has not disclosed the purchase price, although Cinco Días places the valuation above 90 million euros, according to sources familiar with the deal. The acquisition is pending typical regulatory approvals.
This shift should not only be seen as a financial correction. The technical context has changed. Mobile networks handle more traffic; 5G requires denser architecture; rural connectivity has become a matter of territorial cohesion; and service continuity has gained importance after blackouts, power outages, and increasing dependency on digital communications.
For a company with an extensive national network, reclaiming a rural backhaul platform reduces dependencies and better aligns transport investments with the evolution of the mobile network. It can also facilitate coordination with other assets, from fiber and towers to backup power systems.
A strategic, rural, and competitive acquisition
The acquisition of LineoX has a clear rural dimension. In many small municipalities, mobile connectivity quality doesn’t just depend on having a nearby antenna but also on how well that antenna is connected to the rest of the network. If the transport link is weak, congested, or lacks redundancy, experience degrades in calls, data, video, remote work, or enterprise services.
It also has an industrial aspect. In recent years, much of the sector has separated towers, transport networks, and other assets into specialized companies or infrastructure-controlled vehicles. While this model can improve efficiency and attract capital, it also creates dependencies when the asset impacts service quality for an operator. The reacquisition of LineoX shows Telefónica’s intent to review where to draw the line between outsourcing infrastructure and maintaining direct control.
Moreover, this move occurs in a highly competitive Spanish market. Digi, Vodafone, MasOrange, and alternative operators exert pressure on prices and coverage, while Telefónica seeks to defend value in fiber, mobile, business services, and advanced connectivity. In this environment, network infrastructure returns to a core competitive and operational argument. Gaining more control over rural backhaul might seem like a purely engineering decision, but it ultimately influences the perceived quality for customers, companies, and authorities.
LineoX fits precisely into the intermediate zone between traditional infrastructure and next-generation connectivity. Its microwave links are not the most glamorous part of 5G and are rarely highlighted in commercials, yet they carry part of the traffic that enables reaching places where fiber doesn’t always arrive easily. For a tech-focused readership, this deal matters because it shows that the race for better networks isn’t just about more spectrum or antennas but also about who controls the links underpinning everything.
Frequently Asked Questions
What is LineoX?
LineoX is a rural backhaul microwave link platform. Its network connects base stations, operators, and companies with the core network in areas where fiber is not always available or difficult to deploy.
What is backhaul in telecommunications?
It’s the transport layer that carries traffic from an antenna, node, or access point to the operator’s main network. Without good backhaul, mobile coverage can lose quality or capacity.
Why is Telefónica reacquiring a network it sold in 2020?
The company aims to regain control of infrastructure it considers critical for the quality and resilience of its network, especially in rural and low-density areas.
Are microwave links still useful with 5G?
Yes. While fiber is preferable in many deployments, microwave links remain useful for connecting rural sites, reducing deployment times, and providing capacity where fiber is challenging to run.