BT78 broadband coverage — Derry City and Strabane
Full-fibre, gigabit and superfast broadband availability across the BT78 postcode district, plus business broadband and leased-line options for Derry City and Strabane.
Excellent coverage
Superfast (30Mb+)
92.3%
Ultrafast (300Mb+)
82.7%
Gigabit-capable
82.7%
Below USO (10Mb)
0.9%
Check broadband at your exact BT78 postcode
District figures are an average — get the precise availability, full-fibre status and mobile signal for your address.
Broadband in BT78
Broadband availability in the BT78 postcode district (Derry City and Strabane) is Excellent — gigabit-capable full fibre is widely available. Across the 1,151 postcodes Ofcom measures in BT78, superfast broadband (30 Mbit/s or faster) reaches 92.3% of premises and gigabit-capable lines are available to 82.7%.
Around 0.9% of premises in BT78 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.
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Sample postcodes in BT78
| Postcode | Superfast | Gigabit |
|---|---|---|
| BT78 1AA | 100% | 100% |
| BT78 1AE | 100% | 100% |
| BT78 1AN | 100% | 100% |
| BT78 1AP | 100% | 3.9% |
| BT78 1AR | 100% | 100% |
| BT78 1AS | 100% | 100% |
| BT78 1AT | 100% | 100% |
| BT78 1AU | 100% | 100% |
| BT78 1AW | 100% | 100% |
| BT78 1AY | 100% | 100% |
Business broadband & leased lines in Derry City and Strabane
Whether the BT78 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 BT78
Free, no obligation — full fibre, leased line or FTTC, matched to what's actually available at your postcode.
Nearby BT districts
See all Belfast (BT) broadband coverage ›
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Frequently asked questions
What broadband speeds are available in the BT78 area (Derry City and Strabane)?
Can I get full-fibre or gigabit broadband in the BT78 area (Derry City and Strabane)?
How do I check broadband at my exact address in the BT78 area (Derry City and Strabane)?
Who provides business broadband in the BT78 area (Derry City and Strabane)?
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.