Every euro they raise goes straight to profit. There's no cost to them.
In Spain's evolving telecommunications landscape, Telefónica is seeking to shed the last regulatory constraint on its infrastructure business — the price controls governing rivals' access to its underground ducts and poles. If approved by Spain's CNMC and the European Commission, the shift from binding regulation to voluntary commitments would mark the quiet conclusion of a decades-long era of telecom oversight, leaving only broadcast transmission infrastructure under formal price control. The move reflects a broader pattern across European markets: structured regulation retreating in favor of negotiated promises, with the question of whether competition can survive on goodwill alone.
- Telefónica is pushing to replace the MARCo regulatory framework with self-imposed voluntary commitments, effectively asking regulators to trust the market's dominant infrastructure owner to set fair prices without legal compulsion.
- Rivals including Masorange, Digi, and Vodafone have twice written to Brussels sounding the alarm, warning that unchecked price increases could erode their viability and trigger a slow-motion remonopolization of Spanish fiber.
- The financial reality complicates the alarm: duct costs represent just 0.4 to 0.6 percent of retail fiber prices, and despite a recent 11% increase, current prices remain 39% below 2011 levels — making catastrophic margin collapse harder to argue.
- For Telefónica, deregulation is a pure earnings opportunity — any price increase flows directly to profit with no added cost — giving the company under Marc Murtra a compelling incentive to push the process forward.
- CNMC's board is expected to rule in the coming weeks, with Brussels holding final approval by year-end; if it passes, Spain's telecom sector will have reduced formal price regulation to a single market: broadcast transmission, where Cellnex is already pursuing the same deregulatory path.
Telefónica is working to dismantle the last price regulation constraining its operations in Spain — the MARCo framework, which allows the CNMC to set what Telefónica can charge competitors for access to its underground ducts and poles. In its place, the company has proposed voluntary commitments. If CNMC's board approves the deal in the coming weeks, it would head to Brussels for final review, with a decision possible before year's end.
The infrastructure in question is not trivial. Operators like Masorange, Digi, Vodafone, Onivia, and PremiumFiber have built their fiber networks through Telefónica's ducts precisely because regulated access made it economically rational — and because Telefónica, unlike municipal or utility duct owners, was legally obligated to grant that access. Switching to alternative duct networks now would be prohibitively expensive at scale.
Competitors have twice warned Brussels that deregulation could lead to price increases that threaten their viability and risk remonopolization. The concern has structural logic: rivals are locked in. Yet the numbers tell a more measured story. Telefónica earns roughly 100 million euros annually from approximately 50 million competitor connections through its ducts — about sixteen cents per connection per month. Against retail fiber prices of twenty-five to thirty-five euros, duct costs amount to less than one percent of the final bill. Even a significant price increase would not dramatically compress margins.
Historically, the direction has been downward. Despite an eleven percent increase approved in 2025, duct prices today stand at just sixty-one percent of their 2011 levels, following years of consecutive cuts. For Telefónica, however, any future increase would translate directly into earnings with no corresponding rise in costs — a clean margin gain.
Should deregulation succeed, Spain will have effectively exited the era of ex-ante telecom price regulation, save for one remaining market: broadcast transmission infrastructure, where Cellnex dominates and is itself negotiating to replace its own regulatory obligations with voluntary commitments. The pattern is unmistakable — formal oversight is contracting across Spanish telecom, and Brussels will be left to judge whether negotiated promises are enough to keep competition alive.
Telefónica is moving to dismantle the last remaining price regulation that constrains how it operates in Spain's telecom sector. The company has proposed a set of voluntary commitments that, if accepted by Spain's telecom regulator CNMC, would replace the current MARCo framework—a system that lets the regulator set the prices Telefónica can charge rivals for access to its underground ducts and poles. Those rivals, which include operators like Masorange, Digi, and Vodafone, as well as fiber specialists like Onivia and PremiumFiber, have already laid their networks through Telefónica's infrastructure because it was cheaper and because Telefónica was legally obligated to grant access while other duct owners were not.
The stakes are straightforward: if the voluntary commitments win approval from CNMC's board in the coming weeks, the agreement would then go to Brussels for final review, with a decision possible by year's end. This would mark the end of traditional regulation on what is now the last regulated business in Spanish telecom. The CNMC already lifted price controls on Telefónica's fiber network last year, so the duct regulation is what remains.
Competitors have sounded alarms twice to Brussels about what deregulation could mean. In their most recent letter, they warned that price increases on duct access could "erode the competitive viability of other operators, potentially leading to a process of remonopolization." The concern is real enough in principle: if Telefónica raises prices significantly, rivals would have no easy escape because switching to other duct networks—owned by municipalities, power companies, or gas utilities—would be economically unfeasible at this scale. They have already invested in Telefónica's ducts.
Yet the actual financial impact may be smaller than the rhetoric suggests. Telefónica currently collects roughly 100 million euros annually from this business, drawn from about 50 million fiber connections that competitors operate through its ducts. That works out to two euros per year, or sixteen cents per month, per connection. When retail fiber prices average twenty-five to thirty-five euros monthly, duct costs represent just 0.4 to 0.6 percent of the final price. Even a meaningful increase over the next five years would not dramatically squeeze margins.
Moreover, the historical trend has run in the opposite direction. Duct prices have fallen consistently over the past decade and a half. The CNMC approved an eleven percent price increase in 2025, but even with that bump included, current prices sit at sixty-one percent of what they were in 2011, following several consecutive cuts, the most recent in May 2021. For Telefónica, though, the calculus is different. Any sustained price increase would flow directly to earnings and cash with no corresponding rise in costs—a pure margin gain for the company under Marc Murtra's leadership.
If the duct business is deregulated, Spain will have shed another layer of telecom oversight. Only one telecommunications market would remain under ex-ante price regulation: broadcast transmission and distribution, where Cellnex—the successor to Retevisión's infrastructure—dominates as the primary supplier for terrestrial television networks. Cellnex is itself pursuing a similar path, negotiating with CNMC to replace its current market regulation with voluntary commitments. The pattern is clear: regulation in Spanish telecom is contracting, replaced by negotiated promises that Brussels will ultimately judge.
Citações Notáveis
A price increase could erode the competitive viability of other operators, potentially leading to a process of remonopolization— Competing operators in letter to Brussels
A Conversa do Hearth Outra perspectiva sobre a história
Why does it matter that Telefónica's ducts are the last regulated piece of the telecom business?
Because regulation is what keeps prices honest when a company has no real competition. Telefónica owns the ducts everyone else needs. You can't just build new ones—it's too expensive. So without a regulator setting prices, Telefónica can charge whatever it wants.
But you said the cost is only sixteen cents a month. That seems trivial.
It is trivial as a percentage of the final bill. But for Telefónica, it's not trivial at all. Every euro they raise goes straight to profit. There's no cost to them. And over time, small increases add up.
So why are competitors so worried if the impact is small?
Because they're thinking about the future. If Telefónica can raise prices without restraint, and if other operators can't easily escape to alternative ducts, then Telefónica has leverage. The worry isn't about tomorrow—it's about what happens in five or ten years.
What does Brussels have to do with this?
Spain's regulator can approve the voluntary commitments, but Brussels has to sign off. The EU wants to make sure that deregulation doesn't just mean Telefónica gets a free hand. That's where the real negotiation happens.
If prices have fallen sixty-one percent since 2011, why are competitors complaining now?
Because the direction is about to change. Regulation forced those cuts. Without it, there's no reason for Telefónica to keep cutting. The question is whether voluntary commitments will actually bind them the way regulation did.
What happens if Brussels says no?
Then the MARCo regulation stays in place. Telefónica keeps operating under price controls. But that seems unlikely—the trend across Europe is toward deregulation, and Telefónica has been pushing hard for this.