Southampton Test Broadband Coverage
Westminster parliamentary constituency · England · 51,885 premises
Southampton Test clears the UK's 81% full-fibre average, sitting at 98.1%.
The verdict
Southampton Test ranks #9 of 650 constituencies for full-fibre (98.1%) and #581 for the fixed/FWA availability gap (0.0%) - those two corpus maps diverge.
Broadband Coverage in Southampton Test
Southampton Test in England has a premises count of 51,885 on Ofcom's register. Its full-fibre availability of 98.1% is above-average; add in gigabit-capable cable upgrades and that figure rises to 98.6%. Superfast broadband (30 Mbit/s or more) is available to 99.3% of premises, with 98.7% able to reach ultrafast (300 Mbit/s or more) speeds.
On connectivity for all households, Southampton Test 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 98.1%, 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 England with comparable full-fibre coverage are listed below.
Coverage Metrics
Where Southampton Test Sits Nationally
Southampton Test vs every UK parliamentary constituency
Full-fibre coverage distribution across all 650 UK constituencies. Southampton Test's 98.1% places it in the highlighted band.
98.1% Top 1% higher than 99% 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 Southampton Test (top-third full-fibre at 98.1%), both outside England so the neighborhoods are not the same-nation Nearby block above.
Similar full-fibre
Nearest other-nation constituencies by full-fibre coverage (98.1% here; floor ≥5,000 premises).
Similar gigabit
Nearest other-nation constituencies by gigabit-capable coverage (98.6% here).
What 98.1% full-fibre means for Southampton Test
Southampton Test is 17.1pp 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 Southampton Test 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 Southampton Test's full-fibre coverage compare with other UK constituencies?
Ofcom Connected Nations Spring 2026 puts full-fibre (FTTP) at 98.1% of premises in Southampton Test, ranked #9 of 650 UK constituencies (higher than 641 of them). The UK average is 81%.
Is the fixed/FWA availability gap closed in Southampton Test?
Ofcom's Spring 2026 measure shows every measured premise in Southampton Test 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.