SO16 broadband and area guide
Ofcom coverage, connection speeds, house prices and local data for 1,522 postcodes across 9 sectors in Southampton.
Full fibre
0%
Gigabit
87%
Superfast
98%
Postcodes
1,522
SO16 is Southampton's largest district at 1,522 postcodes, with 98% superfast and 87% gigabit coverage.
Broadband speeds in SO16
Share of SO16 premises by the fastest download speed available, averaged across all 1,522 postcodes in the district.
This vast area maintains consistent high-speed access. 98% reach superfast thresholds, matching the UK average, and 87% access gigabit. Speed penetration is heavily skewed upwards: 88% of postcodes hit 300+ Mbps, while only 10% sit in the 30-300 band. The below-10-Mbps tail is negligible at 0.5%, representing around seven postcodes in a district of 1,522. There are zero below-USO postcodes. Cable and fibre infrastructure has been deployed widely across 1,500-plus postcodes, with very few pockets left behind. Most residents enjoy gigabit-capable infrastructure, meaning household broadband demands are rarely strained.
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
0%
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
SO16 splits into 9 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 |
|---|---|---|---|---|
| SO16 0 | 68 | 84% | 0% | 58% |
| SO16 2 | 33 | 100% | 0% | 99% |
| SO16 3 | 213 | 98% | 0% | 81% |
| SO16 4 | 203 | 98% | 0% | 98% |
| SO16 5 | 166 | 100% | 0% | 98% |
| SO16 6 | 177 | 99% | 0% | 97% |
| SO16 7 | 218 | 96% | 0% | 61% |
| SO16 8 | 187 | 100% | 0% | 89% |
| SO16 9 | 257 | 100% | 0% | 98% |
All SO16 0 postcodes (68)
All SO16 2 postcodes (33)
All SO16 3 postcodes (213)
All SO16 4 postcodes (203)
All SO16 5 postcodes (166)
All SO16 6 postcodes (177)
All SO16 7 postcodes (218)
All SO16 8 postcodes (187)
All SO16 9 postcodes (257)
Best deals
Compare broadband deals in SO16
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Living in Southampton
At 1,522 postcodes, SO16 maintains speed uniformity across a large and dense area. Most residents access gigabit-capable infrastructure, making broadband amply sufficient for household needs.
Remote worker score
55/100
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
SO16 broadband FAQs
Is gigabit the default in SO16?
87% of postcodes have it, so it's the norm. But 13% rely on superfast instead, so verify your address.
Why is SO16 so much larger than nearby codes?
It covers a densely populated area of Southampton with many residential postcodes bundled into a single outward code.
Will anyone in SO16 struggle with broadband?
Only 0.5% fall below 10 Mbps across the entire district. Most residents will see 30+ Mbps as a floor.
How do I know if my SO16 address is in the 13% without gigabit?
Request a line check from major ISPs. They can confirm available technologies and speeds for your exact location.
Neighbouring districts
Check your exact postcode
Every postcode in SO16 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