Giffgaff Grows to 4.26 Million UK Mobile Customers as 671 Take Broadband
Mobile operator giffgaff, which is owned by Telefónica UK (part of the VMO2 Group) and uses O2’s virtual operator platform (mvno), recently published their annual accounts to the end of 2025 and revealed that their mobile base grew by 142,000 members (up from 100k in 2024) to total 4,260,368. The operator also had 671 full fibre broadband customers.
According to giffgaff’s accounts, the company’s revenue also increased by 5% to £633.78m, but their profit after tax fell sharply to £44.69m (2024: £64.09m). The latter fall was mostly attributed to an “increase in the cost of sales and administrative expenses“. The net assets of the company now stand at £387.09m, which is up from £342.40m last year. Giffgaff also reported being home to a total of 299 employees (up from 264 last year).
At this point some readers might wonder why giffgaff has so few fixed broadband customers and the answer to that is because these results only go up to 31st December 2025 – the provider only launched their new full fibre service in mid-September 2025 (here) and it then took several months to expand its availability – initially only via nexfibre’s network patch.
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Giffgaff has only recently started to become available via Virgin Media’s existing FTTP network too (here), so their initial launch was hindered by a weak level of UK network availability. The future results for 2026 should, we hope, show a significantly expanded broadband base.
Mark is a professional technology writer, IT consultant and computer engineer from Dorset (England), he also founded ISPreview in 1999 and enjoys analysing the latest telecoms and broadband developments. Find me on X (Twitter), Mastodon, Facebook, BlueSky, Threads.net and Linkedin.
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All the best to them with their growth, but when I tried to sign up with them they where more interested in ‘security’ to put me off, I only wanted a sim card
broadband numbers are so low because they rely on virgins network, and still after all this time have no way of transfering you from VM to GG. You put in your info, and it states they aren’t active in your area, the only way you can switch is to fully end your virgin services, which I’m sure breaks some of ofcom rules. Seen it mentioned on giffgaff forums, and its suprising no fines yet.