Ofcom data · 829 postcodes

PO1 broadband coverage — Portsmouth

Full-fibre, gigabit and superfast broadband availability across the PO1 postcode district, plus business broadband and leased-line options for Portsmouth.

Strong coverage

Superfast (30Mb+)

91.7%

Ultrafast (300Mb+)

81.5%

Gigabit-capable

80%

Below USO (10Mb)

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

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Broadband in PO1

Broadband availability in the PO1 postcode district (Portsmouth) is Strong — superfast is near-universal and gigabit is rolling out. Across the 829 postcodes Ofcom measures in PO1, superfast broadband (30 Mbit/s or faster) reaches 91.7% of premises and gigabit-capable lines are available to 80%.

Around 0% of premises in PO1 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 PO1

Postcode	Superfast	Gigabit
PO1 1AN	100%	100%
PO1 1AQ	100%	100%
PO1 1AT	100%	100%
PO1 1AU	100%	100%
PO1 1AW	100%	0%
PO1 1BA	100%	100%
PO1 1BE	100%	100%
PO1 1BG	100%	100%
PO1 1BH	75%	75%
PO1 1BJ	100%	100%

Business broadband & leased lines in Portsmouth

Whether the PO1 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 PO1

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

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Nearby PO districts

PO21 — 55.5% gigabit PO20 — 51.8% gigabit PO7 — 79% gigabit PO19 — 73% gigabit PO9 — 87.5% gigabit PO30 — 67.2% gigabit PO12 — 92.2% gigabit PO16 — 89.1% gigabit PO22 — 59.7% gigabit PO33 — 78.5% gigabit

See all Portsmouth (PO) broadband coverage ›

Frequently asked questions

What broadband speeds are available in the PO1 area (Portsmouth)?

In the PO1 area (Portsmouth), superfast broadband (30 Mbit/s+) is available to approximately 91.7% of premises and gigabit-capable broadband to around 80%, 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 PO1 area (Portsmouth)?

Gigabit-capable coverage in the PO1 area (Portsmouth) stands at about 80% 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 PO1 area (Portsmouth)?

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 PO1 area (Portsmouth)?

Most UK providers serve the PO1 area (Portsmouth) 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.