Ofcom data · 1,139 postcodes

SO31 broadband coverage — Eastleigh

Full-fibre, gigabit and superfast broadband availability across the SO31 postcode district, plus business broadband and leased-line options for Eastleigh.

Strong coverage

Superfast (30Mb+)

97.3%

Ultrafast (300Mb+)

77.7%

Gigabit-capable

75.5%

Below USO (10Mb)

Check broadband at your exact SO31 postcode

District figures are an average — get the precise availability, full-fibre status and mobile signal for your address.

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Broadband in SO31

Broadband availability in the SO31 postcode district (Eastleigh) is Strong — superfast is near-universal and gigabit is rolling out. Across the 1,139 postcodes Ofcom measures in SO31, superfast broadband (30 Mbit/s or faster) reaches 97.3% of premises and gigabit-capable lines are available to 75.5%.

Around 0% of premises in SO31 fall below the Universal Service Obligation (a minimum of 10 Mbit/s download and 1 Mbit/s upload), so the overwhelming majority of homes and businesses here can already order a decent fixed line. For a business that depends on its connection, the figures that matter most are gigabit and full-fibre availability — the symmetric, low-contention services we quote leased lines and FTTP against.

Sample postcodes in SO31

Postcode	Superfast	Gigabit
SO31 1AA	66.7%	0%
SO31 1AB	75%	0%
SO31 1AD	50%	0%
SO31 1AE	100%	100%
SO31 1AH	100%	100%
SO31 1AJ	100%	100%
SO31 1AP	100%	100%
SO31 1AQ	100%	82.6%
SO31 1AR	100%	93.8%
SO31 1AY	100%	100%

Business broadband & leased lines in Eastleigh

Whether the SO31 district has full fibre yet or not, we can connect your business. Where FTTP and gigabit are live we quote ultrafast full-fibre; where they aren't, a leased line still delivers guaranteed, symmetric speeds with an SLA. We also handle mobile coverage and VoIP for the same site.

Get a business broadband quote for SO31

Free, no obligation — full fibre, leased line or FTTC, matched to what's actually available at your postcode.

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Nearby SO districts

SO16 — 86.6% gigabit SO50 — 80.2% gigabit SO19 — 97.2% gigabit SO15 — 92% gigabit SO41 — 38% gigabit SO40 — 76.3% gigabit SO45 — 78.4% gigabit SO18 — 94.4% gigabit SO53 — 72.9% gigabit SO51 — 55.9% gigabit

See all Southampton (SO) broadband coverage ›

Frequently asked questions

What broadband speeds are available in the SO31 area (Eastleigh)?

In the SO31 area (Eastleigh), superfast broadband (30 Mbit/s+) is available to approximately 97.3% of premises and gigabit-capable broadband to around 75.5%, based on Ofcom Connected Nations data. Exact availability varies by postcode — enter your full postcode in our checker for a precise result.

Can I get full-fibre or gigabit broadband in the SO31 area (Eastleigh)?

Gigabit-capable coverage in the SO31 area (Eastleigh) stands at about 75.5% of premises. Where gigabit and full-fibre (FTTP) are live, businesses can order symmetric, low-latency connections — ideal for cloud, VoIP and multi-site working. If full fibre hasn't reached your premises yet, a leased line can still deliver guaranteed gigabit speeds.

How do I check broadband at my exact address in the SO31 area (Eastleigh)?

Use the free broadband postcode checker on this page: enter your postcode to see fixed-broadband availability, gigabit/full-fibre coverage and mobile signal for all four networks at that location, sourced from official Ofcom data.

Who provides business broadband in the SO31 area (Eastleigh)?

Most UK providers serve the SO31 area (Eastleigh) over the Openreach and (where present) CityFibre or Virgin Media networks. Connection Technologies arranges business broadband, full-fibre (FTTP) and leased lines across the area — request a quote to compare options for your postcode.

Broadband availability data © 2026 Ofcom (Connected Nations), licensed under the Open Government Licence v3.0. Figures are area averages and predictions; availability at an individual address may differ — always confirm with a postcode-level check.