SP11 broadband and area guide
Ofcom coverage, connection speeds, house prices and local data for 1,278 postcodes across 5 sectors in Test Valley.
Full fibre
0%
Gigabit
52%
Superfast
85%
Postcodes
1,278
SP11 spans 1,278 Basingstoke and Deane postcodes, the largest in this batch, and shows the connectivity risks of scale. Gigabit reaches only 51.8%.
Broadband speeds in SP11
Share of SP11 premises by the fastest download speed available, averaged across all 1,278 postcodes in the district.
This is Basingstoke's connectivity challenge writ large. 1,278 postcodes in one code create infrastructure bottlenecks and resource constraints. Gigabit reaches just 51.8%, superfast only 84.8%. The speed distribution is concerning. 51.8% sit in 300+ Mbps, 32.9% cluster in 30 to 300 Mbps, and 6.3% fall below 10 Mbps. Below-USO postcodes number 1.8%, higher than peers. The sheer scale and mixed coverage reveal infrastructure strain. Households here face real speed variability across the postcode. Scale makes universal gigabit economically unviable across such a large footprint.
Source: Ofcom Connected Nations. Percentages are district-wide averages of postcode-level availability, so rows may not sum to exactly 100%.
Connectivity in detail
Below 10 Mbps USO
2%
Premises unable to get the 10 Mbps universal service minimum
Fixed wireless
0%
Premises that can use a fixed wireless access service
Broadband by sector
SP11 splits into 5 postcode sectors. Coverage and prices can differ street by street, so open a sector below to find your exact postcode.
| Sector | Postcodes | Superfast | Full fibre | Gigabit |
|---|---|---|---|---|
| SP11 0 | 217 | 76% | 0% | 27% |
| SP11 6 | 386 | 90% | 0% | 61% |
| SP11 7 | 218 | 87% | 0% | 69% |
| SP11 8 | 173 | 81% | 0% | 24% |
| SP11 9 | 284 | 86% | 0% | 63% |
All SP11 0 postcodes (217)
All SP11 6 postcodes (386)
All SP11 7 postcodes (218)
All SP11 8 postcodes (173)
All SP11 9 postcodes (284)
Best deals
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Living in Test Valley
Basingstoke's largest postcode shows the tension between coverage area and speed. Households here cannot assume gigabit. Practical outcomes are mixed.
Remote worker score
53/100
Connectivity and amenities for home working
Family score
50/100
Schools, safety and family amenities
Value score
50/100
What you get for the local price level
SP11 broadband FAQs
Why is gigabit only 51.8% in SP11?
Scale matters enormously. With 1,278 postcodes, infrastructure investment per unit drops. Population density and network planning constraints limit gigabit deployment.
Should I be concerned about the 6.3% below-10 Mbps rate?
Yes. One in 16 postcodes is severely underserved. Request a formal coverage check before committing.
What's the typical speed in SP11?
Odds are roughly even between gigabit at 51.8% and middling superfast at 32.9%. Variance is high, so postcode verification is essential.
What does the 1.8% below-USO rate mean?
It's elevated. Regulatory obligations apply, so check whether intervention schemes cover your specific address.
Neighbouring districts
Check your exact postcode
Every postcode in SP11 has its own page with broadband speeds, house prices, school ratings and crime stats. You can also compare providers for your address.
Data sources: Broadband data from Ofcom Connected Nations 2025 · House prices from HM Land Registry · Crime from Police.uk · See all data sources