South Antrim Broadband Coverage
Westminster parliamentary constituency · Northern Ireland · 47,721 premises
Full-fibre in South Antrim runs ahead of the national curve, 96.7% against a 81% UK average.
The verdict
South Antrim ranks #19 of 650 constituencies for full-fibre (96.7%) and #575 for the fixed/FWA availability gap (0.0%) - those two corpus maps diverge.
Broadband Coverage in South Antrim
South Antrim is one of Northern Ireland's Westminster constituencies, home to 47,721 premises. Full-fibre (FTTP) is available to 96.7% of them, above-average nationally, and the gigabit-capable figure climbs to 96.7% once DOCSIS 3.1 cable upgrades are included. 99.5% get superfast (30 Mbit/s or more) service, and 96.7% get ultrafast (300 Mbit/s or more).
On connectivity for all households, South Antrim has near-universal fixed and fixed-wireless broadband availability: fewer than 1% of premises cannot receive a decent service. Full-fibre sits in the top third of UK seats at 96.7%, and Ofcom's Spring 2026 measure shows every measured premise can receive decent fixed or fixed-wireless broadband.
Where these figures come from
Figures are drawn from Ofcom's Connected Nations Spring 2026 report (January 2026 snapshot, published May 2026 (r1)), 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
Where South Antrim Sits Nationally
South Antrim vs every UK parliamentary constituency
Full-fibre coverage distribution across all 650 UK constituencies. South Antrim's 96.7% places it in the highlighted band.
96.7% Top 3% higher than 97% of 650 UK constituencies
every UK parliamentary constituency, bucketed by value
Each bar is a band; taller bars hold more UK constituencies. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source Ofcom Connected Nations Spring 2026 · January 2026 snapshot, published May 2026 (r1)
Related
Source: Source: Ofcom Connected Nations Spring 2026 (January 2026 snapshot, published May 2026 (r1)).
Nationwide constituencies with similar full-fibre or gigabit coverage
Two Ofcom peer sets for South Antrim (top-third full-fibre at 96.7%), both outside Northern Ireland so the neighborhoods are not the same-nation Nearby block above.
Similar full-fibre
Nearest other-nation constituencies by full-fibre coverage (96.7% here; floor ≥5,000 premises).
Similar gigabit
Nearest other-nation constituencies by gigabit-capable coverage (96.7% here).
What 96.7% full-fibre means for South Antrim
South Antrim is 15.7pp ahead of the 81% UK average, but coverage still varies street by street.
- Check your own address, a constituency average can hide big street-by-street differences in coverage. Check your postcode
- See how South Antrim ranks against every other UK constituency, not just the national average. Full UK rankings
- Understand what full-fibre actually gets you before switching. Switching to full-fibre
Coverage figures are Ofcom Connected Nations availability data, not a guarantee of service at any single address; always check before switching.
Frequently Asked Questions
How does South Antrim's full-fibre coverage compare with other UK constituencies?
Ofcom Connected Nations Spring 2026 puts full-fibre (FTTP) at 96.7% of premises in South Antrim, ranked #19 of 650 UK constituencies (higher than 631 of them). The UK average is 81%.
Is the fixed/FWA availability gap closed in South Antrim?
Ofcom's Spring 2026 measure shows every measured premise in South Antrim can receive decent broadband from a fixed line or fixed-wireless network.
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.