giffgaff’s full fibre now reaches 4.2 million homes

Millions of people know giffgaff from a cheap SIM card rather than from broadband. As reported by ISPreview, the company now says its full fibre packages are available to 4.2 million UK homes and rising, up from the 4 million it reported in mid-June. If your address is one of them, you have another full fibre option to weigh up. A cheap one, too.
ISPreview puts the prices new customers typically pay at £25 a month for 200Mbps on a 24-month term, rising to £32 for the top 900Mbps package, with free setup, unlimited usage, a wireless router included and what giffgaff calls a pledge of no mid-term price rises. A rolling monthly plan costs a few pounds more. Those speeds are symmetric, so upload matches download. That matters more than it sounds if you work from home, back large files up, or spend half your day on video calls.
Whose network is this?
Not giffgaff’s own. The 4.2 million figure covers the roughly 2.6 million premises on nexfibre’s full fibre network, plus some of the homes Virgin Media is upgrading from its old cable to fibre under the programme it calls Fibre Up. giffgaff, nexfibre, Virgin Media and O2 share some of the same parentage, as ISPreview notes, so this is one group’s footprint being sold under a second badge rather than a new network arriving in your street. That is not a criticism, but it does explain how the coverage got so large from a standing start.
The parts worth pausing on
Three of them. The move from 4 million in June to 4.2 million now is mild, and giffgaff told ISPreview it cannot share a strict timeline or rollout schedule, pointing to the construction work needed to enable fibre in more streets. So there is no date to wait for.
Second, switching straight across from Virgin Media is not settled yet. giffgaff’s own help system has pointed to around October for direct switching, which we wrote about when it appeared, and until it works the route can still mean cancelling first.
Third, being able to buy something is not the same as anyone buying it. The last public count is old and small: giffgaff’s accounts to the end of December 2025 recorded 671 full fibre customers next to 4.26 million mobile members, and ISPreview is careful to say those accounts close barely three months after the broadband launch, before most of the network was available to sell. So treat it as a young broadband operation behind a very well known mobile brand. It is not a verdict on the service.
Whether any of it reaches you is a street-by-street question, and a headline number cannot answer it. Our availability checker will show which networks reach your address today, and our guide to FTTP, FTTC and cable explains what the difference between Virgin Media’s old cable and the fibre replacing it actually means for your line.
