UK Westminster Constituencies — Broadband Coverage
About This Data
This page covers all 650 Westminster parliamentary constituencies across England, Scotland, Wales and Northern Ireland. Each constituency entry shows broadband coverage drawn from Ofcom's Connected Nations 2025 report (July 2025 release, r01), including full-fibre (FTTP), gigabit-capable, superfast (≥30 Mbit/s) and USO gap (premises unable to receive 10 Mbit/s) figures as a percentage of total premises in the constituency.
Constituency boundaries reflect the 2024 UK general election configuration. Coverage figures represent the proportion of premises that can receive a given service from at least one network operator — they do not indicate actual subscription levels or the speeds households are currently receiving. Constituency-level figures are compiled by Ofcom by aggregating postcode-sector data to constituency boundaries.
Use the filters below to narrow results by nation or starting letter, and the column headers to reorder by any metric. Each constituency links to a detail page with a full breakdown of coverage metrics and nearby comparable constituencies.
Showing 9 of 650 constituencies in Wales starting with C
| Constituency | Nation | Premises | Full-fibre % | Gigabit % | USO gap % |
|---|---|---|---|---|---|
| Caerfyrddin | Wales | 47,974 | 55.7% | 55.7% | 2.1% |
| Caerphilly | Wales | 45,711 | 87.5% | 87.5% | 0.0% |
| Cardiff East | Wales | 48,291 | 78.5% | 93.9% | 0.0% |
| Cardiff North | Wales | 43,410 | 91.0% | 94.6% | 0.0% |
| Cardiff South and Penarth | Wales | 55,175 | 82.4% | 88.1% | 0.0% |
| Cardiff West | Wales | 49,455 | 80.5% | 90.5% | 0.0% |
| Ceredigion Preseli | Wales | 51,741 | 50.5% | 50.5% | 1.6% |
| Clwyd East | Wales | 48,731 | 79.6% | 79.6% | 0.3% |
| Clwyd North | Wales | 52,576 | 90.1% | 90.1% | 0.0% |
Source: Ofcom Connected Nations 2025, July 2025 release (r01). Published under the Open Government Licence v3.0. Constituency boundaries based on 2024 UK general election configuration.