SFR: what a break-up would mean for your phone bill

Documentary analysis current through 28 September 2026.

When a phone plan gets too expensive, the obvious response is to see what a rival can offer. The proposed break-up of SFR is about that alternative. Bouygues Telecom, Free and Orange want to acquire a business to which their customers can currently move, or threaten to move. In the proposed configuration, metropolitan France would go from four mobile network operators to three. There could still be plenty of brands. Fewer businesses would control their offers. Arcep

The agreement announced on 6 June 2026 puts the contemplated transaction at €20.35 billion in enterprise value, subject to adjustments. That is a valuation of the deal, not a budget earmarked for improving anyone’s connection. On 24 September, SFR employees protested over its employment terms. Between the acquisition and a phone that keeps working lie networks, experienced staff and years of integration. Joint announcement · Le Monde

For a subscriber, there are two distinct tests. The first is whether the handover preserves their number, services and important contract terms. The second comes later: will an attractive alternative still give their provider a reason to keep them? A smooth technical transfer would not, by itself, answer the competition question.

A deal still subject to approval

As of 28 September 2026, the public material reviewed does not establish that the acquisition has been approved and completed. The buyers have targeted the second half of 2027. That is their intended completion window, not a migration appointment for each customer. Joint announcement

Responsibility for the competition review is clearer than it was at the start of the summer. On 15 July, the European Commission referred the Iliad part of the transaction to France’s competition authority. The French authority will examine three separate, contractually linked acquisitions. It said the investigation was expected to take at least eighteen months. The buyers’ timetable is therefore not a commitment by the regulator; the announcement does not set a guaranteed completion date. French competition authority

Telecoms regulator Arcep has a different role. Among other things, it must authorise transfers of spectrum usage rights. It also says SFR’s coverage, quality and continuity obligations remain in force during the review and any subsequent transition. Announcing a sale does not suspend the service obligations. Arcep

There is a practical consequence. A corporate announcement is not, on its own, an instruction to replace a router, accept a new plan or hand over account credentials. Any individual migration process will require verifiable information from the provider. The documents examined do not yet supply that customer-level guide.

How the customers and assets would be divided

The plan divides businesses rather than giving three buyers equal stakes in an operator that would permanently keep selling everything together. RED by SFR would go to Free, along with other SFR customers. The agreement cites a RED customer base of six million, using 2025 reference data. It does not describe that figure as six million mobile lines. Joint announcement

Bouygues would acquire, among other assets, SFR Business, Prixtel and part of the consumer business. Orange says it would take approximately four million mobile customers and one million fixed-line customers, including the Coriolis, Syma and Réglo businesses. A person with both a mobile subscription and home broadband can appear in more than one category. These totals are not counts of distinct individuals. Bouygues Telecom · Orange

That allocation does not tell a particular subscriber which price they will be offered, or how long every brand will survive. It does explain why ownership matters. Free and RED could continue to sell different plans within one group. But a customer switching between them would no longer be leaving that group.

This is not a new feature of the French market. In August 2024, the competition authority cleared Bouygues Telecom’s acquisition of La Poste Telecom. A familiar brand can remain on display after its ownership changes. That earlier clearance says nothing conclusive about whether the much larger SFR proposal will be authorised. French competition authority

Behind the router, a shared local network

Behind the home router, several businesses may be involved. The company billing for broadband is not necessarily the one that built the local fibre network. An infrastructure operator deploys that network; retail internet providers can connect to it and sell their own services. Which offers a household can actually buy depends on which providers serve its address. Arcep

Changing provider need not mean digging up the street and installing fibre all over again. In an already connected home, the existing fibre connection can be used for a new subscription. Equipment, configuration or connections further upstream may still need to change. Arcep

The distinction also reveals the limits of comparing logos. Two providers can compete on price, support and features while relying on the same local stretch of infrastructure. Moving from one to the other does not create an independent second cable there. A fault on the shared section can remain a common vulnerability, even when their upstream networks and services differ. That is an implication of the simplified architecture shown here, not an outage observed in a future SFR migration.

Nor does the SFR transaction include every infrastructure business associated with its parent. Stakes in XP Fibre, UltraEdge and Altice Technical Services are excluded from the announced perimeter.Altice France’s activities in the French overseas departments and regions are also excluded. Some other infrastructure is included, notably SFR’s interest in a shared fibre network in part of the very densely populated areas, known as Faber. Neither “all the fibre is being sold” nor “no infrastructure is changing hands” describes the plan accurately. Bouygues Telecom

Network sharing already exists in mobile, too. SFR and Bouygues have shared parts of their networks under the Crozon agreement since 2014. Arcep subsequently examined amendments extending the arrangement to 5G. Sharing equipment and competing for customers can coexist. Arcep

That matters when assessing the promised savings. The relevant comparison is with the networks as they actually operate, including existing sharing arrangements, rather than with four entirely separate systems. Further savings may be possible. But they must be additional to efficiencies that are already there.

Your provider has a supplier, too

A smaller mobile operator can offer a competitive plan without building its own radio network. It purchases wholesale access, then develops its subscriptions and customer service. That is a mobile virtual network operator, or MVNO. The word “virtual” does not make it a pretend business: Arcep treats it as an operator in its own right, responsible for the services it sells. Arcep

Its network supplier may also compete for the same retail customers. So the smaller operator’s freedom depends partly on terms that never appear in the headline price: the cost of access, contract duration, available services and the practical ability to move to another host.

Consider a fictional monthly subscription sold for €10 excluding VAT. Wholesale network access costs €6, and other variable costs come to €2. That leaves €2 to cover fixed costs and contribute to profit. If access costs rise to €7, with everything else unchanged, the remaining amount falls to €1. The retail price has not moved. The business’s room to operate has halved.

These are invented figures, not the terms of any French wholesale agreement. They explain why the number of networks willing and able to host competitors also matters to a customer’s bill. A virtual operator that can obtain an equivalent service elsewhere on workable terms has a bargaining option. If it cannot, the presence of several brands on a comparison website does little to create one.

Arcep’s statistics recognise the ownership distinction. Virtual operators that are more than 50% owned by a mobile network operator are included with network operators in its market indicators. Treating every brand as an independent competitor would overlook that difference. Arcep

The SFR review therefore also concerns wholesale access. Counting the plans still on sale will not be enough. It will matter who can launch another one, on what terms, and whether a dissatisfied virtual operator has a credible alternative network host.

Promotions and discounts shape the price paid

The effect of removing a competitor need not arrive as a simultaneous increase in everyone’s existing bill. One possible channel is less aggressive offers for new subscribers. Another is a smaller discount when a customer calls to cancel. A promotion might end sooner, or return less often. These are mechanisms to investigate, not decisions announced by the buyers.

They do not require a secret agreement between the remaining companies. Each business can independently reassess how much it needs to concede to win or retain a customer. If an alternative has become less attractive, the incentive to match it may weaken.

The opposite response is also possible. An enlarged operator may want to fill spare network capacity and pursue more customers. The acquisition of business services could give one buyer greater scope to challenge another. An operator count alone cannot produce a defensible percentage forecast for French phone bills. The outcome depends on which markets, products and customers face stronger or weaker competition.

Even an apparently simple price comparison can mislead. Take a fictional plan that rises from €8 to €10, while its data allowance doubles. Its price per gigabyte falls, but the amount debited increases. The larger package may suit a heavy user and leave a light user worse off. Neither measure can stand in for the other.

Official statistics also need their dates kept straight. For French mobile services in 2025, Arcep reports a 7.9% decline in annual-average prices, compared with a 2.2% fall between December 2024 and December 2025. Earlier reductions during 2024 continued to affect the comparison of annual averages. The figures answer different questions; they are not contradictory. The index tracks published offers available to new customers or people changing plans, rather than necessarily following existing subscribers’ bills. It cannot establish an effect of a 2026 transaction that has not been completed. Arcep · 2025 report, p. 5

For a household budget, a useful comparison holds the period and the usable service constant: the price after an introductory offer, unavoidable fees, commitment length, coverage and discounts tied to home broadband. A nominally available plan that does not work in the home or on the daily commute is not an equivalent alternative. Public coverage and quality tools make it possible to check those locations rather than rely on a single national ranking. Service Public / Arcep

Savings still have to reach the subscriber

The buyers have a substantive industrial argument. Running duplicate billing systems, maintaining redundant equipment and operating separate platforms can cost more than an integrated organisation. Removing genuine duplication can release resources and simplify operations. The companies present the transaction as a way to strengthen investment. Bouygues Telecom

But a saving has no automatic destination. It can improve a network, reduce a price, pay integration costs, repay financing or increase shareholder returns. The subscriber’s outcome depends on the competitive pressure that remains, the commitments made and whether they are delivered. Subscribers benefit when an investment improves the service they actually use.

Investment trends need similar care. Arcep estimates €10.3 billion of investment in 2025 by operators and mobile infrastructure managers, excluding spectrum purchases, down 15%. Its account of the slowdown in deployment includes fibre networks nearing completion in several areas and fewer new mobile sites. Some spending is falling because construction work is reaching its end. Arcep, Telconomics

Connection quality and funding for future needs require a separate assessment in each area. The regulator distinguishes the relevant scopes and labels its 2025 annual results provisional. A national aggregate is not a diagnosis of each operator. Arcep market observatory

Timing is part of the argument. Bouygues expects the full benefit of its projected synergies in 2034. Savings several years after completion are not an immediate service improvement for a household waiting to be connected or to have a fault repaired. Bouygues Telecom

The people protesting are also the people needed for the handover

The 24 September demonstration concerns protections for the people who would carry out the migration. The CFTC union was seeking, among other things, at least three redeployment offers per employee and an employment guarantee lasting four years from completion, rather than ending on a fixed date in early 2029. These are demands, not terms already secured. CFTC · Le Monde

The joint announcement provides for assets not immediately absorbed by the buyers to remain in a transitional structure for at least thirty months after completion. It also promises employment until early 2029, through continuation of a job or an offer of employment. That is not the same as preserving every existing post in the same location on unchanged terms. Joint announcement

Apply those thirty months to the buyers’ intended completion window, and a deal closing in the second half of 2027 would leave the transition running at least into 2030. The announced employment guarantee would end before that minimum period was over. The calculation neither forecasts dismissals in 2029 nor assumes that every team would face the same circumstances. It identifies a timing issue for the employment negotiations.

For the customer, this can become practical at the first fault. Who knows the history of a building’s installation? Who can recover a connection order left between two billing systems? Who understands why an essential business feature no longer works after a platform change? These are integration risks to manage, not incidents already observed in a future migration.

The consortium itself acknowledges that continuity depends on SFR staff’s expertise. Successful migration cannot therefore be measured solely by the number of subscriptions transferred. Correctly handled customer files and effective fault resolution matter, too. Reducing costs while retaining the people able to solve such problems can create tension. Managing that tension is part of making the industrial plan work. Joint announcement

Britain’s network and pricing commitments

The Vodafone–Three transaction in the United Kingdom shows that a move from four mobile network operators to three can be authorised. It also shows why the conditions deserve attention. The CMA accepted undertakings on 28 March 2025, following its December 2024 report: an eight-year network investment plan, protection for selected retail tariffs for three years, and pre-set wholesale terms for virtual operators for three years. CMA case guide

The British authority had identified risks to prices and wholesale competition. It concluded that enforceable investment commitments and temporary protections could address them, with delivery monitored. The expected benefits then depend on those commitments being delivered. CMA announcement

The comparison suggests questions rather than a ready-made French solution. Which customers would be protected? Would commitments cover new subscriptions or only selected existing plans? What terms would virtual operators be able to negotiate? What additional service would customers receive, and how would delivery be verified? Risks and savings need not arrive at the same time.

The French proposal also involves three buyers and assets managed jointly for a transitional period. The competition authority says it will examine the transactions together and consult relevant stakeholders and sector regulators. Dividing the assets between existing rivals does not remove the need to assess what choices their customers would have afterwards. French competition authority

The right to leave matters more when there is somewhere worth going

A change of ownership does not automatically alter the price of every subscription. When a provider changes a contract’s terms, specific consumer rules apply. Subject to exceptions, Article L224-33 of the French Consumer Code requires notice on a durable medium at least one month before the change takes effect. A customer who has not expressly accepted the new terms can terminate without penalty within four months of notification of the proposed change. Exceptions include changes that are exclusively beneficial, purely administrative with no negative effect, or directly required by law. Légifrance · Arcep

For a voluntary switch that keeps the telephone number, the customer obtains a RIO, the line’s portability identifier, by calling 3179. The new provider handles the number transfer and termination of the corresponding line; the customer should not cancel it first. Number portability is free, but that does not erase any amounts still owed under the contract. This procedure is not an advance instruction for an SFR acquisition-related migration. Arcep

These protections are useful. They do not ensure that a comparable, cheaper offer will exist when someone wants to leave. The legal ability to exit and the commercial availability of a better alternative complement one another. The first cannot create the second.

This is where the competing effects come together. Lower costs could benefit networks and subscribers. An enlarged operator could compete harder for business. Losing an independent decision-maker could also weaken pressure on some offers, while smaller providers remain dependent on wholesale terms.

The outcome will have to be judged by the offers genuinely available, the terms of wholesale access and the service delivered. A subscriber’s bill is part of the evidence. Whether they can find a better deal elsewhere is another.

Further reading

Our analysis of automated prices and competition examines the incentives to win or retain customers. Our article on Starlink and control of the connection separates access to a service from ownership of its equipment.

Method and limitations

This documentary analysis is current through 28 September 2026. Statements by the buyers establish their proposals and announced commitments, not the eventual effects. Union demands are distinguished from agreed terms. No interviews were conducted for this article, and no individual subscriber or wholesale-access contract was reviewed.

Customer figures concern the announced perimeters using 2025 reference data. Completion, migration and synergy dates remain conditional. Arcep statistics retain their own periods and scopes; they are not used to forecast higher subscription prices. The wholesale illustration is fictional. The employment timeline is an arithmetic projection, not a forecast of job losses.

Termination rules are explained for the relevant electronic-communications contracts, not as individual legal advice. The UK comparison concerns commitments imposed, not outcomes attributed to France. Subsequent regulatory decisions, employment agreements and migration plans may change the assessment.

Sources and documents

• S01. Bouygues Telecom, Free–Iliad, Orange et SFR/Altice. Signature d’un protocole d’accord en vue de l’acquisition de SFR. 6 June 2026. Proposed asset allocation, employment pledge, minimum transition period and target completion window. Statements by transaction parties.
• S02. Orange. Orange signe un accord pour l’acquisition conjointe de SFR. 6 June 2026. Orange’s proposed customer and brand perimeter; approximate counts, not unique people.
• S03. Bouygues Telecom. Bouygues Telecom franchit une étape structurante pour son développement futur. 6 June 2026. Bouygues’ proposed assets, existing Crozon sharing, exclusions and projected synergy timetable.
• S04. Autorité de la concurrence. L’Autorité de la concurrence sera l’autorité en charge de l’examen du rachat de SFR. 15 July 2026. French jurisdiction, three contractually linked cases and expected review duration. Not a clearance.
• S05. Arcep. Rachat de SFR : l’Arcep prend acte de la signature d’un protocole d’accord. 8 June 2026. Spectrum transfers and continued coverage, quality and service obligations.
• S06. Arcep. Modification de l’accord de partage entre Bouygues Telecom et SFR. 27 April 2023. Existing network sharing and amendments covering 5G. Not the proposed post-acquisition network.
• S07. Arcep. Liste des MVNO. updated 4 September 2025. Wholesale access, MVNO responsibilities and statistical treatment of majority-owned operators. Dated indicative list.
• S08. Autorité de la concurrence. Telecoms: clearance of the takeover of La Poste Telecom by Bouygues Telecom. 19 August 2024. Historical clearance of a separate transaction, not a precedent deciding the SFR case.
• S09. Arcep. Comment connaître son éligibilité à la fibre optique ?. updated 9 July 2026. Local infrastructure, retail providers and address-level eligibility.
• S10. Arcep. Je suis éligible à la fibre optique, comment m’abonner ?. updated 9 July 2026. Reuse of an existing fibre connection when changing subscriptions.
• S11. Arcep. Telconomics : marché français des télécoms en 2025. 28 May 2026. 2025 investment excluding spectrum purchases, with mobile infrastructure managers included; deployment trends.
• S12. Arcep. Indice des prix des services fixes et mobiles, résultats 2025. 28 May 2026. Annual-average and December-to-December mobile price changes; published offers rather than all existing bills. The HTML header has an older date than the linked 2025-results publication.
• S13. Arcep. Marché des communications électroniques en France : année 2025, résultats provisoires. 28 May 2026. Provisional 2025 statistics and definitions; national aggregates are not SFR-specific accounts.
• S14. CFTC Media+. Projet de démembrement d’Altice France : appel à la grève le 24 septembre. 22 September 2026. Union demands concerning redeployment and employment guarantees, not agreed contractual terms.
• S15. Le Monde. Les salariés de SFR manifestent contre les conditions du rachat. 24 September 2026; updated 25 September 2026. Publicly accessible headline and introductory material confirm the protest and its subject. No interview or quotation is reproduced.
• S16. Competition and Markets Authority. How we investigated the Vodafone / Three merger. 29 April 2024; updated 2 June 2025. Accepted UK undertakings and procedural chronology; conditions are not evidence of realised consumer benefits.
• S17. Competition and Markets Authority. CMA clears Vodafone / Three merger, subject to legally binding commitments. 5 December 2024. CMA reasoning for conditional clearance, not a French decision.
• S18. Arcep. Un opérateur peut-il modifier le contrat qui me lie à lui ?. updated 9 July 2026. Consumer notice, termination conditions and exceptions; updated regulator guidance.
• S19. Légifrance. Code de la consommation, article L224-33. Version in force from 28 May 2021. Primary legal provision, checked alongside July 2026 Arcep guidance. No individual legal advice.
• S20. Arcep. Conserver son numéro fixe ou mobile lors d’un changement d’opérateur. updated 9 July 2026. Voluntary number-porting procedure and distinction between portability fees and contractual amounts owed.
• S21. Service Public / DILA. Quel opérateur mobile fournit la meilleure qualité de réseau près de chez vous ?. 22 July 2025; updated 21 July 2026. Coverage and quality tools for specific places and routes, not forecasts of a migrated network.