Ofcom data · 729 postcodes

HP4 broadband coverage — Buckinghamshire

Full-fibre, gigabit and superfast broadband availability across the HP4 postcode district, plus business broadband and leased-line options for Buckinghamshire.

Strong coverage

Superfast (30Mb+)

95.5%

Ultrafast (300Mb+)

53.7%

Gigabit-capable

53.7%

Below USO (10Mb)

0.5%

Check broadband at your exact HP4 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 HP4

Broadband availability in the HP4 postcode district (Buckinghamshire) is Strong — superfast is near-universal and gigabit is rolling out. Across the 729 postcodes Ofcom measures in HP4, superfast broadband (30 Mbit/s or faster) reaches 95.5% of premises and gigabit-capable lines are available to 53.7%.

Around 0.5% of premises in HP4 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 HP4

Postcode	Superfast	Gigabit
HP4 1AA	100%	100%
HP4 1AB	100%	35.3%
HP4 1AD	100%	61.5%
HP4 1AE	100%	75%
HP4 1AF	100%	100%
HP4 1AG	96.8%	51.6%
HP4 1AH	100%	50%
HP4 1AJ	100%	78.6%
HP4 1AL	100%	73.3%
HP4 1AQ	100%	60%

Business broadband & leased lines in Buckinghamshire

Whether the HP4 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 HP4

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

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Nearby HP districts

HP2 — 85.8% gigabit HP22 — 67.8% gigabit HP13 — 73.2% gigabit HP3 — 81.8% gigabit HP5 — 75.5% gigabit HP21 — 85.6% gigabit HP18 — 66.9% gigabit HP1 — 88.6% gigabit HP19 — 87.2% gigabit HP23 — 69% gigabit

See all Hemel Hempstead (HP) broadband coverage ›

Frequently asked questions

What broadband speeds are available in the HP4 area (Buckinghamshire)?

In the HP4 area (Buckinghamshire), superfast broadband (30 Mbit/s+) is available to approximately 95.5% of premises and gigabit-capable broadband to around 53.7%, 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 HP4 area (Buckinghamshire)?

Gigabit-capable coverage in the HP4 area (Buckinghamshire) stands at about 53.7% 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 HP4 area (Buckinghamshire)?

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 HP4 area (Buckinghamshire)?

Most UK providers serve the HP4 area (Buckinghamshire) 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.