Ofcom data · 686 postcodes

HP18 broadband coverage — Buckinghamshire

Full-fibre, gigabit and superfast broadband availability across the HP18 postcode district, plus business broadband and leased-line options for Buckinghamshire.

Strong coverage

Superfast (30Mb+)

84.9%

Ultrafast (300Mb+)

67.7%

Gigabit-capable

66.9%

Below USO (10Mb)

1.5%

Check broadband at your exact HP18 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 HP18

Broadband availability in the HP18 postcode district (Buckinghamshire) is Strong — superfast is near-universal and gigabit is rolling out. Across the 686 postcodes Ofcom measures in HP18, superfast broadband (30 Mbit/s or faster) reaches 84.9% of premises and gigabit-capable lines are available to 66.9%.

Around 1.5% of premises in HP18 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 HP18

Postcode	Superfast	Gigabit
HP18 0AA	100%	100%
HP18 0AB	100%	100%
HP18 0AD	100%	100%
HP18 0AE	0%	0%
HP18 0AF	0%	0%
HP18 0AG	100%	100%
HP18 0AH	100%	100%
HP18 0AJ	100%	100%
HP18 0AL	100%	100%
HP18 0AN	100%	100%

Business broadband & leased lines in Buckinghamshire

Whether the HP18 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 HP18

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 HP4 — 53.7% gigabit HP5 — 75.5% gigabit HP21 — 85.6% 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 HP18 area (Buckinghamshire)?

In the HP18 area (Buckinghamshire), superfast broadband (30 Mbit/s+) is available to approximately 84.9% of premises and gigabit-capable broadband to around 66.9%, 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 HP18 area (Buckinghamshire)?

Gigabit-capable coverage in the HP18 area (Buckinghamshire) stands at about 66.9% 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 HP18 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 HP18 area (Buckinghamshire)?

Most UK providers serve the HP18 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.