Ofcom data · 624 postcodes

HP1 broadband coverage — Dacorum

Full-fibre, gigabit and superfast broadband availability across the HP1 postcode district, plus business broadband and leased-line options for Dacorum.

Excellent coverage

Superfast (30Mb+)

96.1%

Ultrafast (300Mb+)

89.6%

Gigabit-capable

88.6%

Below USO (10Mb)

0.1%

Check broadband at your exact HP1 postcode

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

Check my postcode ›

Broadband in HP1

Broadband availability in the HP1 postcode district (Dacorum) is Excellent — gigabit-capable full fibre is widely available. Across the 624 postcodes Ofcom measures in HP1, superfast broadband (30 Mbit/s or faster) reaches 96.1% of premises and gigabit-capable lines are available to 88.6%.

Around 0.1% of premises in HP1 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 HP1

Postcode	Superfast	Gigabit
HP1 1AB	100%	20%
HP1 1AE	100%	7.7%
HP1 1AF	100%	100%
HP1 1AG	100%	0%
HP1 1AH	100%	100%
HP1 1AJ	100%	100%
HP1 1AL	100%	100%
HP1 1AN	100%	100%
HP1 1AP	100%	100%
HP1 1AQ	100%	100%

Business broadband & leased lines in Dacorum

Whether the HP1 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 HP1

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

Get my quote ›

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 HP18 — 66.9% 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 HP1 area (Dacorum)?

In the HP1 area (Dacorum), superfast broadband (30 Mbit/s+) is available to approximately 96.1% of premises and gigabit-capable broadband to around 88.6%, 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 HP1 area (Dacorum)?

Gigabit-capable coverage in the HP1 area (Dacorum) stands at about 88.6% 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 HP1 area (Dacorum)?

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 HP1 area (Dacorum)?

Most UK providers serve the HP1 area (Dacorum) 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.