SO31 broadband and area guide
Ofcom coverage, connection speeds, house prices and local data for 1,154 postcodes across 7 sectors in Fareham.
Full fibre
0%
Gigabit
85%
Superfast
98%
Postcodes
1,154
SO31 is Eastleigh's largest district at 1,154 postcodes with exceptional gigabit reach and minimal connectivity gaps.
Broadband speeds in SO31
Share of SO31 premises by the fastest download speed available, averaged across all 1,154 postcodes in the district.
SO31 delivers excellent consistency across its 1,100-plus postcodes. 97.7% reach superfast, and 85.3% access gigabit. Speed penetration is top-heavy: 87% sit at 300+ Mbps, 11% in the 30-300 band, and only 0.2% below 10 Mbps. There are no below-USO postcodes. High-speed coverage is uniform across this large footprint, indicating cable and fibre deployment throughout Eastleigh's main residential areas. Over a thousand postcodes with similar high-speed access is notable; it reflects either dense urban coverage or thorough infrastructure investment. SO31 combines scale with quality. Households here get reliable high-speed broadband.
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
SO31 splits into 7 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 |
|---|---|---|---|---|
| SO31 1 | 71 | 98% | 0% | 89% |
| SO31 4 | 119 | 94% | 0% | 62% |
| SO31 5 | 169 | 97% | 0% | 76% |
| SO31 6 | 237 | 100% | 0% | 99% |
| SO31 7 | 199 | 98% | 0% | 94% |
| SO31 8 | 178 | 97% | 0% | 72% |
| SO31 9 | 181 | 98% | 0% | 93% |
All SO31 1 postcodes (71)
All SO31 4 postcodes (119)
All SO31 5 postcodes (169)
All SO31 6 postcodes (237)
All SO31 7 postcodes (199)
All SO31 8 postcodes (178)
All SO31 9 postcodes (181)
Best deals
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Living in Fareham
SO31 combines scale with quality, offering consistent fast speeds across over a thousand postcodes. For most residents, broadband is not a concern.
Remote worker score
54/100
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
SO31 broadband FAQs
Is gigabit the standard assumption in SO31?
85.3% have it available, so yes, it is likely. The remaining 15% are on superfast, which still handles most uses comfortably.
Why is SO31 so large compared to other codes?
SO31 covers a densely populated part of Eastleigh, bundling many residential postcodes into one outward code.
Are there postcodes I should avoid?
Only 0.2% fall below 10 Mbps across all 1,154 postcodes. Virtually nowhere in SO31 is problematic.
How does SO31 compare to SO19?
SO19 has 97.8% gigabit versus SO31's 85.3%. SO19 is slightly better, but both are among the finest-connected districts in Southampton.
Neighbouring districts
Check your exact postcode
Every postcode in SO31 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