But some of these smaller debt-laden companies are now being squeezed by rising interest rates and disappointing uptake, resulting in slowdowns of their rollouts and more than 1,250 job cuts across the industry in 2023, according to data compiled by Enders Analysis.

James Barford, head of telecoms at the research firm, estimated total capital expenditure by altnets of between £8bn to £9bn so far. But many altnets are now “struggling due to tougher financial conditions” and deployments have been paused as “investors demand better performance on existing footprints”, Barford said.

He added consolidation was “sorely needed” but that negotiations will be challenging because some altnets will not be worth the amount invested in them. Potential acquirers will also be debating whether it is more cost effective to build or buy areas that do not overlap with their own full-fibre footprints.

Tom Harrington, head of television for Enders Analysis, said people were only prepared to pay for a maximum of three video subscriptions — with Netflix, Disney+ and Amazon Prime Video emerging as the dominant players. Newer entrants such as Paramount+, NBCUniversal’s Peacock and Warner Bros Discovery’s Max are expected to struggle in the battle for subscribers. “If you’re watching one service, then your sense of the value for money that the others provide is lowering,” he said.

He pointed to the market-leading 45 minutes per day users spend with Netflix as driving its unexpected success in converting “parasitic” users who have been password sharing for up to a decade.

“The outperformance of this initiative is fundamentally a testament to the product itself,” he said. “If you have been getting something for free for a long period of time then it is difficult to persuade people to pay but Netflix ­appears to have converted many non-paying users.”

Karen Egan, analyst at Enders, said the merger would be likely to be referred for a so-called Phase 2 inquiry. “Clearly there will be a degree of overlap as they both offer telecoms services across an array of customer types, but the bulk of their customer bases are helpfully quite different, as the Vodafone brand has been more successful at the high end of the consumer market, while Three is much more of a value proposition,” she said.

“We hear from ad agencies that clients are getting fed up with the online drama and if a site does not deliver sufficient measurable results to make it important enough not to boycott then they’ll just leave it behind,” says Joseph Teasdale, head of tech at Enders Analysis. 

Karen Egan, a senior telecoms analyst at Enders Analysis, said it was “inevitable that [the UK government] would be really sensitive about telecoms, which is more critical than ever to our lives in general and particularly in today’s geopolitical environment”.

She said risks included cyber attacks, interception and networks being shut down.

Egan added that the imposed requirements could be a template for the proposed domestic merger of Vodafone and Three UK, owned by CK Hutchison, if there are any national security concerns related to the Hong Kong-based company.

Karen Egan, head of telecoms at Enders Analysis, said: “It demonstrates that there is a real sensitivity around the services that Vodafone provides and that influence from autocratic states is viewed with some caution. There will be some read across to both The Telegraph takeover case and the proposed Vodafone and Three merger. The mitigations that are suggested for the E& strategic agreement could well serve to address any sensitivities around CK Hutchison part-ownership of a merged Vodafone UKand Three”