Ofcom data · 931 postcodes

DH4 broadband coverage — County Durham

Full-fibre, gigabit and superfast broadband availability across the DH4 postcode district, plus business broadband and leased-line options for County Durham.

Excellent coverage

Superfast (30Mb+)

96.4%

Ultrafast (300Mb+)

89.5%

Gigabit-capable

89.1%

Below USO (10Mb)

0.1%

Check broadband at your exact DH4 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 DH4

Broadband availability in the DH4 postcode district (County Durham) is Excellent — gigabit-capable full fibre is widely available. Across the 931 postcodes Ofcom measures in DH4, superfast broadband (30 Mbit/s or faster) reaches 96.4% of premises and gigabit-capable lines are available to 89.1%.

Around 0.1% of premises in DH4 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 DH4

Postcode	Superfast	Gigabit
DH4 4AB	100%	44.4%
DH4 4AD	100%	0%
DH4 4AE	100%	0%
DH4 4AF	100%	27.3%
DH4 4AJ	100%	100%
DH4 4AL	100%	0%
DH4 4AN	100%	11.1%
DH4 4AP	100%	92.9%
DH4 4AR	100%	64.7%
DH4 4AS	100%	0%

Business broadband & leased lines in County Durham

Whether the DH4 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 DH4

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

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Nearby DH districts

DH8 — 52% gigabit DH7 — 23.6% gigabit DH1 — 64.3% gigabit DH9 — 75.7% gigabit DH6 — 64.5% gigabit DH3 — 78.4% gigabit DH2 — 84.3% gigabit DH5 — 90.2% gigabit

See all Durham (DH) broadband coverage ›

Frequently asked questions

What broadband speeds are available in the DH4 area (County Durham)?

In the DH4 area (County Durham), superfast broadband (30 Mbit/s+) is available to approximately 96.4% of premises and gigabit-capable broadband to around 89.1%, 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 DH4 area (County Durham)?

Gigabit-capable coverage in the DH4 area (County Durham) stands at about 89.1% 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 DH4 area (County Durham)?

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 DH4 area (County Durham)?

Most UK providers serve the DH4 area (County Durham) 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.