Darlington broadband coverage (DL)
Full-fibre, gigabit and superfast availability across every DL postcode district in North East England — plus business broadband and leased lines.
Strong coverage
Superfast (30Mb+)
85%
Ultrafast (300Mb+)
53.5%
Gigabit-capable
52.8%
Below USO (10Mb)
—
Check your exact DL postcode
Area figures average a whole postcode region — get the precise availability, full-fibre status and mobile signal for your address.
Broadband across the DL area
The DL postcode area covers Darlington and the surrounding North East England region, spanning 17 outward-code districts. Overall fixed-broadband provision across DL is strong: superfast reaches about 85% of premises and gigabit-capable connectivity is available to roughly 52.8%.
Availability is never uniform across a whole postcode area — city-centre DL districts are typically further ahead on full fibre than outlying towns and rural fringes. Use the district breakdown below to see how each DL outcode compares, then check an exact postcode for the definitive answer.
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DL districts compared
Each DL outward code ranked by size. Click a district for its full breakdown and a postcode-level check.
| District | Area | Superfast | Gigabit |
|---|---|---|---|
| DL1 | County Durham | 95.8% | 89% |
| DL14 | County Durham | 88.3% | 42.3% |
| DL8 | North Yorkshire | 80.9% | 46.3% |
| DL3 | Darlington | 96.8% | 92.6% |
| DL13 | County Durham | 77.2% | 15% |
| DL10 | North Yorkshire | 81.6% | 51.4% |
| DL2 | County Durham | 72.2% | 43.3% |
| DL5 | County Durham | 94.9% | 6.5% |
| DL12 | County Durham | 71.7% | 45.2% |
| DL15 | County Durham | 91.3% | 72.5% |
| DL7 | North Yorkshire | 86.6% | 56.1% |
| DL6 | North Yorkshire | 75.4% | 46.4% |
| DL16 | County Durham | 96% | 77.5% |
| DL17 | County Durham | 89.6% | 49.8% |
| DL11 | County Durham | 52.7% | 17.7% |
| DL9 | North Yorkshire | 98.2% | 79.9% |
| DL4 | County Durham | 95.6% | 65.5% |
Business broadband & leased lines in Darlington
Connection Technologies arranges business broadband, full-fibre (FTTP) and leased lines right across the DL area. Where gigabit full fibre is live we quote ultrafast symmetric connections; everywhere else a leased line still guarantees the speed and SLA your business needs.
Get a business broadband quote in Darlington
Free and no obligation — matched to what's actually available at your postcode.
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Frequently asked questions
What broadband speeds are available in the DL postcode area (Darlington)?
Can I get full-fibre or gigabit broadband in the DL postcode area (Darlington)?
How do I check broadband at my exact address in the DL postcode area (Darlington)?
Who provides business broadband in the DL postcode area (Darlington)?
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.