BT started its FY26 with robust financials. Revenue was slightly weak due to handsets and international, but EBITDA was slightly ahead of expectations, and operating metrics were strong.

The highlight was Openreach posting its lowest broadband line losses for over a year despite ongoing altnet pressure, and keeping revenue growth positive despite reduced inflationary price increases.

The altnet threat is still far from over, but it is encouraging that there are signs that it is beginning to wane as the sub-sector moves to a more rational wholesale model.

CityFibre has announced that its long-awaited £1.5 to £2.3 billion financing round is finally agreed, with it now able to use this money to fund its remaining organic build, integrating acquisitions, and covering operating losses until it reaches cashflow breakeven.

This capital raise will not be the first of many across the altnet sector in our view, as CityFibre’s business model is unique, and now partially dependent on the struggles of others to encourage consolidation.

CityFibre now has all the pieces in place to accelerate consolidation of the altnet sector, which will ultimately benefit the whole sector in ending unsustainable retail altnet competition.

Publishers are becoming less visible. Since 2019, publisher visibility on Google’s search results has diminished markedly—the Mail is less than half as visible in Google’s search results as it was five years ago.

Since March, publishers' keywords have become over three times more likely to trigger an AI Overview, now affecting around one-third of the Sun and Mirror’s keywords. These summaries mostly appear for entertainment and informational queries, which typically have high search volumes but lower click-through rates

The commercial impact is minimal—we estimate low-single digits—for now. The main threat is to discoverability, and the shrinkage of the top of the funnel

Fixing an allocation quirk at BT pushed UK broadband revenue back into growth in Q1, albeit a very modest 0.8%, thanks to continued altnet growth and a very weak underlying market.

Broadband pricing is dipping down overall, but there is not yet evidence of pricing cuts targeted in altnet areas, a massive missed opportunity in our view.

The market will remain under pressure in the short term, but in the longer term altnet pressure will fall under all realistic consolidation scenarios.
 

Sky has officially launched on CityFibre’s network, offering up to 5Gbps speeds, which may have more of a halo effect for Sky than driving direct adoption of these very high end packages.

Sky is critical to CityFibre’s wholesale model given its size, and it is a good sign that Sky is proving an enthusiastic wholesale customer, while it is likely to be wary of others.

CityFibre still needs to complete its planned financing round to kick off a wholesale-focused consolidation wave, which would ultimately be beneficial to all incumbents in ending irrational price competition from retail altnets.

The largest UK altnets are now all at or close to EBITDA positive, but still heavily cashflow negative even pre-interest costs and with paused builds, due to various below-the-line cash costs requiring continuous funding. EBITDA margins of as much as 35%+ are required to actually be cashflow breakeven.

Altnet economics are still challenging even if debts are fully written off, with a payback of more than 5 years on customer acquisition and connection costs alone.

The consolidation endgame is increasingly imminent, with the outcome likely to be a mix of CityFibre/VMO2 acquisitions, stand-alone niche players continuing, and abandoned assets, with the outcome for the rest of the sector more benign under any scenario than current trends.
 

On 3 June 2025, Enders Analysis co-hosted the annual Media and Telecoms 2025 & Beyond Conference with Deloitte, sponsored by Adobe, Barclays, Salesforce, Financial Times and SAS.

With over 700 attendees and more than 50 speakers from the TMT sector, including leading executives and industry experts, the conference focused on how new technologies, regulation, and infrastructure will impact the future of the industry.

This is the edited transcript of Session Three, covering: Vodafone’s strategy; BT’s strategy; the future of fibre; and challenges and opportunities for telcos.

Most regulations within the TAR26 condoc were continuations of the previous pro-investment regulations, albeit with little progress made on copper withdrawal, no extra help for the struggling altnets and a number of unexpected twists at the margin. 

Within the detail, the most significant hit is the return of cost-based price controls to some leased line charges, and across all of the proposed changes, Openreach has on balance fared worse than retail ISPs, albeit at a scale that is manageable within the BT Group.

Ofcom showed no inclination to offer any extra help to the struggling altnet industry, regarding its inefficiencies as being its own (and its investors’) problem, with consolidation the only sensible path forward for most.

The ‘big 4’ ISPs’ combined revenue remained in decline in Q4 2024 at -0.4%, partly due to a BT accounting quirk but mainly due to altnets gaining share

ARPU growth of 2% is roughly compensating for subscriber declines of 2%, but this ARPU growth is likely to weaken in 2025 as various boosts drop out

A recovery will come as the altnets slow in H2 2025 (if not before) due to their restrained expansion, which cannot come soon enough for the big ISPs

CityFibre has reported positive EBITDA in 2024, albeit at a slim 4% margin, and still needs further scale—and to successfully onboard its new wholesale customer Sky—to drive decent investment returns.

CityFibre’s organic build rate is dropping sharply as it (sensibly) looks set to rely on consolidation to achieve the required scale, with its organic build focused on Project Gigabit areas.

CityFibre remains well-positioned for consolidation, but this may take some time yet, with the altnet sector set to slow organic progress anyway in the interim.