Broadband availability and full-fibre take-up in Caerphilly
- Postcode speeds
- Wales
- Caerphilly
- Broadband availability and full-fibre take-up in Caerphilly
Download and upload groups are six separate published averages: under 10, 10 to 30, 30 to 100, 100 to 300, 300 to 900, and 900 and above Mbit/s. Each band keeps its own average. They are not added into one speed. Output areas with fewer than five lines stay suppressed, even though these authority rows are already aggregated by Ofcom.
Caerphilly has published coverage for January 2026 and nothing newer. Full-fibre availability is 89.7% of all premises, while take-up is 57.0% of the same base, a difference of 32.7 pp. Take-up can fall while connections rise, because availability grows faster. Line performance sits on a separate page.
32.7 pp (published interval 32.1 pp to 33.3 pp). This is a rounding bound, not a confidence interval.
A specific address is not checked here. Check an address with Ofcom.
Paired figure, July 2025 line performance: 1012.0 Mbit/s.
Use the published area, not one address
A specific address is not checked here. Check an address with Ofcom.
Open the line performance page for this areaCaerphilly coverageCheck an address with Ofcom
Figures
- Full-fibre availability89.7%January 2026, all premises
- Full-fibre take-up57.0%January 2026, all premises
- Availability minus take-up32.7 ppJanuary 2026, all premises
- Rounding allowance0.6 ppJanuary 2026, all premises
Full-fibre availability: 89.7%
Gigabit availability: 89.7%
Superfast availability: 99.2%
Ultrafast availability: 89.8%
Availability minus take-up: 32.7 pp
| Measure | Result | Low | High |
|---|---|---|---|
| Gigabit availability | 89.7% | 89.6% | 89.8% |
| Premises below the service obligation | 0.0% | 0.0% | 0.1% |
| Unable to receive 2 Mbit/s | 0.0% | 0.0% | 0.1% |
| Unable to receive 5 Mbit/s | 0.1% | 0.0% | 0.2% |
| Unable to receive 10 Mbit/s | 0.1% | 0.0% | 0.2% |
| Unable to receive 30 Mbit/s | 0.7% | 0.6% | 0.8% |
| Superfast availability | 99.2% | 99.1% | 99.3% |
| Ultrafast availability | 89.8% | 89.7% | 89.9% |
| Full-fibre availability | 89.7% | 89.6% | 89.8% |
| Full-fibre take-up | 57.0% | 56.5% | 57.5% |
| Availability minus take-up | 32.7 pp | 32.1 pp | 33.3 pp |
| Rounding allowance | 0.6 pp | No interval | No interval |
What this does not mean
Part of what this page would normally show is absent from the published files. Ofcom suppresses output areas with speed information for fewer than five lines, and the local-authority coverage file carries no national row for some measures, so the comparison is dropped rather than approximated. A suppressed cell is never read as zero.
Open the line performance page for this area, or read how the figures are calculated.
What this page does not show
The comparison with a nation or United Kingdom take-up gap, or with a nation or United Kingdom band mean, is not calculated. Those aggregates are not in the accepted files.
since 2024 we no longer report on speeds at postcode level
the figures provided here can be compared with the ones reported in 2024 but are not directly comparable with the ones from earlier years
We only include output areas with speed information for at least five lines
It does not tell you the speed at your address. No postcode speed has been published since 2024, and this site does not model one.
It does not say a service will work at a given premises. Availability is a modelled count of premises that could order a service, and one address inside a covered postcode can still be unserved.
It does not mix units. Postcodes, premises and active lines are three different things, and a percentage of one is never read as a percentage of another.
It does not read a suppressed figure as zero. Where fewer than five active lines sit behind a cell, Ofcom withholds it and so do we.
It does not compare periods that were not published together. Coverage is January 2026; line performance is July 2025; a difference between them would describe the calendar, not the network.
Source
- Source
- Ofcom Connected Nations coverage and fixed broadband performance
- Coverage period
- January 2026
- Line performance period
- July 2025
- Publisher release
- Spring 2026 r2 and Connected Nations 2025 performance
- Coverage file SHA-256
- 0ddc33723e345d86ba25d7528d272f6fe12aef5d21d2e3adefdcaa53711c76f3
- Calculation release
- ofcom-2026-10-18-0ddc33723e34-09c7e7c1be2e
Download this page’s aggregate CSV · Read this page’s calculation data · read how the figures are calculated