Broadband in Cardiff: 87% can get full fibre.
In Cardiff, 87% of premises can get full fibre (Ofcom, January 2026), above the UK figure of 81%. Gigabit speeds reach 94.4% of premises. Full fibre grew by 3.5 points in six months. It ranks 109th of 361 council areas for full fibre.
Broadband coverage in Cardiff
Three things to know before you choose
87% can get full fibre, above the UK figure, but about 22,448 premises still cannot. Check your exact address first.
Here, gigabit coverage (94.4%) comes mainly from full fibre, so faster uploads usually come with it.
Only 45% of premises that can get full fibre use it. If your street has it, you may get more speed for a similar price.
Cardiff vs Wales and the UK
Region, nation and UK figures are totals of all council areas, weighted by premises. Take-up is the share of premises with full fibre available that use it.
How fast Cardiff is catching up
Full fibre
July 2025 to January 2026. 124th biggest rise of 359 councils.
Gigabit
Already high, so new full fibre adds less here.
Most homes that can get full fibre in Cardiff haven’t switched
Of every 100 premises, 87 can get full fibre and 39 use it. That is a take-up of 45%, against 47.1% across the UK.
Compare full fibre dealsBroadband providers and cheapest deals in Cardiff
17 providers have broadband deals at CF14 2JA, a postcode in Cardiff:
| Speed | Cheapest deal | Average a month | Deals |
|---|---|---|---|
| Everyday Under 150 Mb | Three 4G Hub (24m) 10 Mb · 24 months | £17.50 | 25 |
| Fast 150–500 Mb | Three 5G Hub (24m) 150 Mb · 24 months | £17.50 | 29 |
| Very fast 500–900 Mb | Virgin Media M500 Fibre broadband 516 Mb · 24 months | £25.99 | 18 |
| Gigabit 900 Mb + | Virgin Media Gig1 Broadband Only 1130 Mb · 24 months | £27.99 | 23 |
Broadband-only deals listed for CF14 2JA on 27 October 2026. Some networks, such as Virgin Media and smaller full fibre builders, are checked address by address, so your list may be longer. Average a month includes set-up fees and contracted price rises.
Compare deals at your postcode
Enter your postcode and pick your address to see every deal that reaches your home.
Neighbouring council areas
| Council | Full fibre | Gigabit | Change* |
|---|---|---|---|
| Caerphilly | 89.7% | 89.7% | +2.2 pts |
| Newport | 87.6% | 93.1% | +2.1 pts |
| Vale of Glamorgan | 87.1% | 91% | +2.5 pts |
| Cardiff | 87% | 94.4% | +3.5 pts |
| Rhondda Cynon Taf | 80% | 81.4% | +7.4 pts |
| Torfaen | 73.2% | 82.7% | -0.9 pts |
The five nearest council areas, sorted by full fibre. * Change in full fibre since July 2025, percentage points.
Broadband in Cardiff: common questions
Is full fibre available in Cardiff?
Yes, for 87% of premises in January 2026 (150,432 homes and businesses), according to Ofcom. Coverage varies street by street, so check your postcode.
What is the fastest broadband in Cardiff?
94.4% of premises can get gigabit speeds of about 1,000 Mb, from full fibre.
Which broadband providers cover Cardiff?
At CF14 2JA we found 17 providers, including Vodafone, POP Telecom, Rebel, Onestream. Enter your own postcode to see every network at your address.
How does Cardiff compare with the UK?
Full fibre in Cardiff is 6.0 points above the UK figure of 81%. It ranks 109th of 361 council areas.
Can I get help if my broadband in Cardiff is very slow?
Yes. 837 premises in Cardiff cannot get 10 Mb. They can request a better connection under the Universal Service Obligation, free up to £3,400.
Coverage and take-up: Ofcom Connected Nations, January 2026 data, Open Government Licence v3.0. Region and location: Office for National Statistics, OGL v3.0. Deals: live prices for CF14 2JA. Methodology →