BT47 broadband and area guide
Ofcom coverage, connection speeds, house prices and local data for 1,277 postcodes across 5 sectors in Derry City and Strabane.
Full fibre
0%
Gigabit
84%
Superfast
89%
Postcodes
1,277
BT47 is the largest Causeway postcode on this run with 1,277 postcodes. Gigabit reach drops to 84%, and a meaningful 4.9% sit below 10 Mbps, the highest fraction in this batch.
Broadband speeds in BT47
Share of BT47 premises by the fastest download speed available, averaged across all 1,277 postcodes in the district.
Gigabit infrastructure covers 83.9% of BT47's 1,277 postcodes in Causeway Coast and Glens, a noticeably smaller share than many nearby Causeway postcodes. Another 5.3% access 30 to 300 Mbps superfast speeds, above the UK average download speed of roughly 75 Mbps, while 4.9% fall below 10 Mbps. The universal service obligation gap is 1.3%, indicating a small cohort facing precarious broadband. BT47's scale and below-10Mbps tail suggest it encompasses strong urban zones and more marginal rural areas. The 4.9% below-10Mbps figure is the highest slow-speed concentration on this run. Infrastructure investment has concentrated in town centres. Cable and fibre networks provide most gigabit coverage.
Source: Ofcom Connected Nations. Percentages are district-wide averages of postcode-level availability, so rows may not sum to exactly 100%.
Connectivity in detail
Below 10 Mbps USO
1%
Premises unable to get the 10 Mbps universal service minimum
Fixed wireless
0%
Premises that can use a fixed wireless access service
Broadband by sector
BT47 splits into 5 postcode sectors. Coverage and prices can differ street by street, so open a sector below to find your exact postcode.
| Sector | Postcodes | Superfast | Full fibre | Gigabit |
|---|---|---|---|---|
| BT47 2 | 249 | 97% | 0% | 93% |
| BT47 3 | 356 | 82% | 0% | 75% |
| BT47 4 | 287 | 84% | TBC | 79% |
| BT47 5 | 111 | 96% | TBC | 95% |
| BT47 6 | 274 | 95% | 0% | 89% |
All BT47 2 postcodes (249)
All BT47 3 postcodes (356)
All BT47 4 postcodes (287)
All BT47 5 postcodes (111)
All BT47 6 postcodes (274)
Best deals
Compare broadband deals in BT47
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Living in Derry City and Strabane
BT47's size and mixed infrastructure make it a higher-risk postcode for broadband expectations. Most residents will connect well, but a meaningful minority face older or unreliable service. Check your specific address.
Remote worker score
52/100
Connectivity and amenities for home working
Family score
50/100
Schools, safety and family amenities
Value score
50/100
What you get for the local price level
BT47 broadband FAQs
Why is BT47's below-10Mbps rate so much higher than nearby postcodes?
BT47's 1,277 postcodes span multiple settlements and rural areas, accumulating a higher tail of slower premises. The postcode's scale means aggregated figures encompass varied infrastructure quality.
What's the outlook for premises below gigabit in BT47?
About 5.3% get superfast (30 to 300 Mbps), but 4.9% fall below 10 Mbps. That's 100 postcodes per million premises. If you're on the fringes, request a direct speed check from providers.
Are there postcodes in BT47 that fall short of the USO threshold?
Yes. 1.3% miss the 2 Mbps legal minimum. Those properties may qualify for assistance under the universal service obligation.
Should a family moving to BT47 assume modern broadband is available?
Most will connect well. But the 5% below-10Mbps rate is meaningful enough to warrant a provider check before committing.
Neighbouring districts
Check your exact postcode
Every postcode in BT47 has its own page with broadband speeds, house prices, school ratings and crime stats. You can also compare providers for your address.
Data sources: Broadband data from Ofcom Connected Nations 2025 · House prices from HM Land Registry · Crime from Police.uk · See all data sources