Ofcom data · 437 postcodes

SO17 broadband coverage — Southampton

Full-fibre, gigabit and superfast broadband availability across the SO17 postcode district, plus business broadband and leased-line options for Southampton.

Excellent coverage

Superfast (30Mb+)

99.5%

Ultrafast (300Mb+)

96.9%

Gigabit-capable

95.3%

Below USO (10Mb)

Check broadband at your exact SO17 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 SO17

Broadband availability in the SO17 postcode district (Southampton) is Excellent — gigabit-capable full fibre is widely available. Across the 437 postcodes Ofcom measures in SO17, superfast broadband (30 Mbit/s or faster) reaches 99.5% of premises and gigabit-capable lines are available to 95.3%.

Around 0% of premises in SO17 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 SO17

Postcode	Superfast	Gigabit
SO17 1AB	100%	100%
SO17 1AE	100%	100%
SO17 1AF	100%	100%
SO17 1AG	100%	100%
SO17 1AJ	100%	0%
SO17 1AN	100%	100%
SO17 1AP	100%	100%
SO17 1AQ	100%	100%
SO17 1AW	100%	100%
SO17 1BE	100%	0%

Business broadband & leased lines in Southampton

Whether the SO17 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 SO17

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 SO31 — 75.5% gigabit SO15 — 92% gigabit SO41 — 38% gigabit SO40 — 76.3% gigabit SO45 — 78.4% gigabit SO18 — 94.4% gigabit SO53 — 72.9% gigabit

See all Southampton (SO) broadband coverage ›

Frequently asked questions

What broadband speeds are available in the SO17 area (Southampton)?

In the SO17 area (Southampton), superfast broadband (30 Mbit/s+) is available to approximately 99.5% of premises and gigabit-capable broadband to around 95.3%, 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 SO17 area (Southampton)?

Gigabit-capable coverage in the SO17 area (Southampton) stands at about 95.3% 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 SO17 area (Southampton)?

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 SO17 area (Southampton)?

Most UK providers serve the SO17 area (Southampton) 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.