Community Fibre mobile: cheap unlimited 5G for London

News · 11 Jun 2026 · Daniel Reid

Community Fibre mobile is the London altnet’s new unlimited 5G eSIM service, and the price hook is the headline: existing Community Fibre broadband customers pay just £15 a month for unlimited UK data, calls and texts. The launch was announced on 21 May 2026 and covered by ISPreview, Telecoms.com and Community Fibre’s own press release, with the service due to go live in June 2026. From the MTW news desk, our first question is the one every London buyer will ask: is this actually a good deal, or just a tidy headline number?

Community Fibre mobile: what was actually announced

On 21 May 2026, Community Fibre confirmed it will launch an unlimited 5G mobile eSIM service in June 2026, built with Gamma Communications and the app developer Zappter. The reporting came from ISPreview and Telecoms.com alongside the company’s own press release, so this is a firm, sourced launch rather than a rumour. The deal is simple on paper: unlimited UK data, calls and SMS on a straightforward monthly contract, riding on the VodafoneThree host network and specifically the Three UK side of that combined estate.

The pricing structure is the part to read carefully. It is £15 a month if you already take Community Fibre broadband, and £17 a month if you do not. That £2 gap is the lever the whole offer turns on, and it is why we keep coming back to the bundle question below. For context on how the host network is shaping up, our coverage of the VodafoneThree world-first 5G network upgrade explains why a Three-side MVNO is a more interesting proposition in 2026 than it was a year ago.

Pricing and the broadband catch you must not miss

The £15 rate is conditional. To get it, you need to already be a Community Fibre broadband customer; if you are not, the price is £17. That is still competitive, but it changes the calculation completely. If you are weighing this purely as a standalone SIM, you are comparing £17 unlimited against the wider market, not £15. And because Community Fibre only sells broadband where its full-fibre network reaches, the cheaper rate is effectively gated behind a London or South East postcode that the altnet already serves.

There is a sensible family angle too. Existing broadband customers can add extra Unlimited Mobile eSIMs for family members, so a household already paying for the fibre line can layer on several lines at the £15 rate. As with almost every unlimited plan in the UK, the data is subject to a Fair Usage Policy, so do not read unlimited as a literal no-limits tethering free-for-all. If you want to see how the broadband side stacks up before committing, our look at Vodafone 5G home broadband in the UK and the wider BT, EE and Vodafone full-fibre broadband picture are both useful reference points for Londoners shopping around.

eSIM-only and app-based: how setup works

This is an eSIM-only, app-based service. You manage it through Community Fibre’s app on the App Store or Google Play, and there is no physical SIM mentioned at launch. For most recent handsets that is a non-issue: nearly every flagship and a growing list of mid-range phones from the last few years support eSIM, and activation is usually a QR-code or in-app tap that takes minutes. If you have never set one up, the process is genuinely painless, and our eSIM setup guide for the UK in 2026 walks through it step by step across the major networks.

The catch with eSIM-only is at the edges. If your phone is older, or it is a budget device that still ships SIM-tray only, you simply cannot use this service yet. There is also no shop counter to walk into for a swap if something goes wrong; support is app-first. For the vast majority of buyers eyeing a £15 unlimited plan, none of that is a dealbreaker, but it is worth a sanity check on your handset before you cancel an existing SIM. Buyers cross-shopping the big networks may also want our rundown of the best EE plan in the UK for 2026 for a sense of where the mainstream sits.

Is £15 unlimited genuinely a good deal versus the MVNO field?

Here is our honest read. At £15 a month for unlimited everything, Community Fibre mobile sits right at the sharp end of the market, but it is not in a class of its own. iD Mobile, which also rides the Three host network, offers unlimited plans from around £15. SMARTY, another well-known value option, runs unlimited in roughly the £15 to £17 range. VOXI has strong-value data plans on the Vodafone host side, while giffgaff’s unlimited typically starts higher, from around £25. So the raw £15 number is excellent, but it is matched rather than blown away by the established cheap unlimited crowd.

Where Community Fibre pulls ahead is the bundle. The company claims that pairing its 2 Gbps broadband with the new mobile eSIM saves customers £534 over 24 months compared with Virgin Media’s equivalent 2 Gbps broadband plus an unlimited SIM-only plan. If you genuinely want both a fast London fibre line and an unlimited SIM, that combined saving is the real story, not the standalone mobile price. If you only want the SIM and live outside the footprint, the £17 rate puts you back into a straight fight with iD and SMARTY. For network-quality context, our comparisons of EE versus Three in 2026 and Vodafone versus O2 in 2026 are worth a read, since the host network ultimately decides the signal you get.

How the London altnet plan compares: a quick table

The table below puts the launch price next to the approximate current unlimited SIM-only rates from the value MVNOs, using ranges reported by Moneysupermarket and Uswitch in June 2026. Treat the rival figures as indicative starting points, not fixed quotes, since promotions move constantly. The point is to show where a £15 to £17 unlimited eSIM lands rather than to crown a single winner on pence alone.

What the table makes clear is that the broadband-customer rate is the differentiator. At £15 you are level with or fractionally under iD and SMARTY; at £17 you are mid-pack. Add the bundle saving and the proposition strengthens considerably for anyone already committed to Community Fibre’s fast lines.

Coverage reality: a London and South East story

Be clear-eyed about the geography. Community Fibre’s full-fibre network passes around 1.4 million homes across London and the South East, and the mobile service is built around that same customer base. This is not a nationwide launch, and we would not read it as one. The £15 rate in particular is anchored to having Community Fibre broadband, which by definition means living somewhere the altnet’s fibre already reaches. If you move out of London, or you simply live outside the footprint, the cheaper tier is off the table.

The flip side is that mobile coverage itself comes from the VodafoneThree host network, which reaches far beyond London. So while you must be in the footprint to buy the cheap tier, the 5G signal you use travels with you around the country like any other MVNO. That distinction matters: the London focus is about who can buy at £15, not about where the phone works. For a sense of how the merged network is performing nationally, our coverage analysis of the VodafoneThree 5G upgrade is the best starting point.

What Community Fibre’s CEO says about the strategy

The company is positioning this as a deliberate value play rather than a loss-leader. Graeme Oxby, Community Fibre’s CEO, framed it around owning the infrastructure end to end, which in theory lets the altnet price both products more keenly than resellers who rent everything. Whether that translates into lasting value depends on how the Fair Usage Policy and any future price rises play out, but the intent is plain enough.

“With our growth in mobile, we’re taking a different approach, delivering fast, unlimited 5G connectivity at a highly competitive price, with the flexibility customers increasingly expect. Because we build, own and operate our full fibre broadband network, we’ve created a model that allows us to offer better long-term value across both broadband and mobile.”

Graeme Oxby, Community Fibre CEO (Telecoms.com, 21 May 2026)

Our reading: the bundle logic is sound, and an owner-operator genuinely has more room to discount than a pure reseller. But the proof will be in the small print at renewal. For now, the headline holds up.

For Londoners already on Community Fibre fibre, £15 unlimited 5G is a quietly excellent add-on. For everyone else, £17 is good rather than category-defining.

Where to buy or check next in the UK

The first stop is Community Fibre’s own website and app, where you can check whether your London or South East postcode is in the full-fibre footprint and whether you qualify for the £15 broadband-customer rate. Sign-up for the mobile eSIM runs through the App Store and Google Play versions of the app, so have your phone to hand to scan the activation code. If you are not yet a broadband customer, the same site will quote the £17 mobile rate and let you price up the 2 Gbps broadband bundle that drives the claimed £534 saving over 24 months.

For comparison shopping, check iD Mobile and SMARTY directly for their current unlimited rates on the Three host network, VOXI for Vodafone-host data plans, and giffgaff for O2. Uswitch and Moneysupermarket are the easiest places to line up live prices side by side. If your handset is older, confirm eSIM support on the manufacturer’s spec page before you commit, and keep our UK eSIM setup walkthrough open while you activate.

Our verdict

If you already pay Community Fibre for broadband in London or the South East, £15 a month for unlimited 5G is a genuine win and an easy add-on, especially with extra family eSIMs at the same rate and a credible £534 two-year bundle saving against a Virgin Media equivalent. We would sign up without much hesitation in that scenario. For everyone else, the £17 standalone rate is good but not transformative: it lands level with iD Mobile and SMARTY, both of which are nationwide and accept any postcode. The honest catch is that the best price is fenced behind the broadband subscription and a London footprint, the service is eSIM-only so older phones are excluded, and a Fair Usage Policy applies as it does everywhere. Buy it if you are in the footprint and want the bundle; if you only want a SIM and live outside London, shop the wider value MVNOs first. The thing that would flip our view either way is the renewal small print, which we will be watching once the June launch lands.

Related reading on MTW

• Vodafone vs O2 in 2026: which UK network wins
• EE vs Three in 2026 for UK buyers
• BT, EE and Vodafone full-fibre broadband compared