Ofcom data · 798 postcodes

DL5 broadband coverage — County Durham

Full-fibre, gigabit and superfast broadband availability across the DL5 postcode district, plus business broadband and leased-line options for County Durham.

Good coverage

Superfast (30Mb+)

94.9%

Ultrafast (300Mb+)

14.1%

Gigabit-capable

6.5%

Below USO (10Mb)

0.1%

Check broadband at your exact DL5 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 DL5

Broadband availability in the DL5 postcode district (County Durham) is Good — superfast broadband reaches most premises. Across the 798 postcodes Ofcom measures in DL5, superfast broadband (30 Mbit/s or faster) reaches 94.9% of premises and gigabit-capable lines are available to 6.5%.

Around 0.1% of premises in DL5 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 DL5

Postcode	Superfast	Gigabit
DL5 4AA	100%	0%
DL5 4AB	0%	0%
DL5 4AD	60%	0%
DL5 4AE	50%	0%
DL5 4AF	0%	0%
DL5 4AG	0%	0%
DL5 4AH	3.3%	0%
DL5 4AJ	0%	0%
DL5 4AL	100%	0%
DL5 4AN	100%	0%

Business broadband & leased lines in County Durham

Whether the DL5 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 DL5

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

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Nearby DL districts

DL1 — 89% gigabit DL14 — 42.3% gigabit DL8 — 46.3% gigabit DL3 — 92.6% gigabit DL13 — 15% gigabit DL10 — 51.4% gigabit DL2 — 43.3% gigabit DL12 — 45.2% gigabit DL15 — 72.5% gigabit DL7 — 56.1% gigabit

See all Darlington (DL) broadband coverage ›

Frequently asked questions

What broadband speeds are available in the DL5 area (County Durham)?

In the DL5 area (County Durham), superfast broadband (30 Mbit/s+) is available to approximately 94.9% of premises and gigabit-capable broadband to around 6.5%, 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 DL5 area (County Durham)?

Gigabit-capable coverage in the DL5 area (County Durham) stands at about 6.5% 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 DL5 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 DL5 area (County Durham)?

Most UK providers serve the DL5 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.