South Antrim Broadband Coverage
Westminster parliamentary constituency · Northern Ireland · 47,407 premises
Full-fibre in South Antrim runs ahead of the national curve, 96.1% against a 77.5% UK average.
Broadband Coverage in South Antrim
South Antrim is one of Northern Ireland's Westminster constituencies, home to 47,407 premises. Full-fibre (FTTP) is available to 96.1% of them, above-average nationally, and the gigabit-capable figure climbs to 96.2% once DOCSIS 3.1 cable upgrades are included. 99.4% get superfast (30 Mbit/s or more) service, and 96.2% get ultrafast (300 Mbit/s or more).
On connectivity for all households, South Antrim posts one of the strongest USO records nationally, under 1% of premises remain below the 10 Mbit/s baseline. Speed-tier definitions like "ultrafast" shift over time; Ofcom has raised the bar before as networks caught up.
Where these figures come from
Figures are drawn from Ofcom's Connected Nations 2025 report (July 2025, r01), which aggregates postcode-sector data to constituency level. They represent coverage availability from at least one network operator, not the proportion of households that have subscribed to a given speed tier, nor the typical or guaranteed speeds that customers actually receive. Nearby constituencies in Northern Ireland with comparable full-fibre coverage are listed below.
Coverage Metrics
Full Metrics
| Metric | % of Premises |
|---|---|
| Full-fibre (FTTP) | 96.1% |
| Gigabit-capable broadband | 96.2% |
| Superfast (≥30 Mbit/s) | 99.4% |
| Ultrafast (≥300 Mbit/s) | 96.2% |
| Below USO (10 Mbit/s) | 0.0% |
| Total premises | 47,407 |
Related
Source: Ofcom Connected Nations 2025, July 2025 release (r01). Published under the Open Government Licence v3.0. Figures represent premises-level coverage availability, not actual subscriptions or speeds experienced.
Every figure on PlainBroadband is rendered directly from Ofcom Connected Nations data, no number is typed in by an editor. This constituency's figures are computed directly from Ofcom Connected Nations data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.