Ofcom data · 451 postcodes

DL11 broadband coverage — County Durham

Full-fibre, gigabit and superfast broadband availability across the DL11 postcode district, plus business broadband and leased-line options for County Durham.

Mixed coverage

Superfast (30Mb+)

52.7%

Ultrafast (300Mb+)

17.7%

Gigabit-capable

17.7%

Below USO (10Mb)

5.9%

Check broadband at your exact DL11 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 DL11

Broadband availability in the DL11 postcode district (County Durham) is Mixed — superfast is available to many but not all premises. Across the 451 postcodes Ofcom measures in DL11, superfast broadband (30 Mbit/s or faster) reaches 52.7% of premises and gigabit-capable lines are available to 17.7%.

Around 5.9% of premises in DL11 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 DL11

Postcode	Superfast	Gigabit
DL11 6AA	0%	0%
DL11 6AB	33.3%	0%
DL11 6AD	0%	0%
DL11 6AE	94.7%	94.7%
DL11 6AF	0%	0%
DL11 6AG	0%	0%
DL11 6AJ	0%	0%
DL11 6AL	0%	0%
DL11 6AN	0%	0%
DL11 6AP	0%	0%

Business broadband & leased lines in County Durham

Whether the DL11 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 DL11

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 DL5 — 6.5% gigabit DL12 — 45.2% gigabit DL15 — 72.5% gigabit

See all Darlington (DL) broadband coverage ›

Frequently asked questions

What broadband speeds are available in the DL11 area (County Durham)?

In the DL11 area (County Durham), superfast broadband (30 Mbit/s+) is available to approximately 52.7% of premises and gigabit-capable broadband to around 17.7%, 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 DL11 area (County Durham)?

Gigabit-capable coverage in the DL11 area (County Durham) stands at about 17.7% 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 DL11 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 DL11 area (County Durham)?

Most UK providers serve the DL11 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.