Belfast South and Mid Down Broadband Coverage
Westminster parliamentary constituency · Northern Ireland · 60,591 premises
Belfast South and Mid Down is comfortably above the UK's 81% full-fibre benchmark, at 90.7%.
The verdict
Belfast South and Mid Down ranks #157 of 650 constituencies for full-fibre (90.7%) and #262 for the fixed/FWA availability gap (0.0%) - those two corpus maps diverge.
Broadband Coverage in Belfast South and Mid Down
60,591 premises make up the Belfast South and Mid Down constituency in Northern Ireland. Full-fibre reaches 90.7% of them, above-average for a UK seat, while gigabit-capable coverage (which also counts upgraded DOCSIS 3.1 cable) stands at 95.3%. Superfast (30 Mbit/s or more) covers 98.5% and ultrafast (300 Mbit/s or more) reaches 95.3%.
On connectivity for all households, Belfast South and Mid Down 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 90.7%, 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 Belfast South and Mid Down Sits Nationally
Belfast South and Mid Down vs every UK parliamentary constituency
Full-fibre coverage distribution across all 650 UK constituencies. Belfast South and Mid Down's 90.7% places it in the highlighted band.
90.7% Top 24% higher than 76% 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 Belfast South and Mid Down (top-third full-fibre at 90.7%), 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 (90.7% here; floor ≥5,000 premises).
Similar gigabit
Nearest other-nation constituencies by gigabit-capable coverage (95.3% here).
What 90.7% full-fibre means for Belfast South and Mid Down
Belfast South and Mid Down is 9.7pp 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 Belfast South and Mid Down 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 Belfast South and Mid Down's full-fibre coverage compare with other UK constituencies?
Ofcom Connected Nations Spring 2026 puts full-fibre (FTTP) at 90.7% of premises in Belfast South and Mid Down, ranked #157 of 650 UK constituencies (higher than 491 of them). The UK average is 81%.
Is the fixed/FWA availability gap closed in Belfast South and Mid Down?
Ofcom's Spring 2026 measure shows every measured premise in Belfast South and Mid Down 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.