BT48 broadband and area guide
Ofcom coverage, connection speeds, house prices and local data for 1,102 postcodes across 5 sectors in Derry City and Strabane.
Full fibre
0%
Gigabit
90%
Superfast
98%
Postcodes
1,102
Derry City and Strabane's BT48 spans 1,102 postcodes. Gigabit reaches 90%, and the postcode meets superfast availability across almost all premises.
Broadband speeds in BT48
Share of BT48 premises by the fastest download speed available, averaged across all 1,102 postcodes in the district.
Gigabit infrastructure covers 89.9% of BT48 postcodes across Derry City and Strabane. Another 7.8% access 30 to 300 Mbps superfast service, exceeding the UK average download speed of about 75 Mbps. Just 0.6% sit below 10 Mbps, and only 0.1% miss the universal service obligation floor. BT48's size (1,102 postcodes) and the tight clustering of most premises at the top two tiers suggest a well-connected urban core. Derry City itself likely accounts for strong gigabit concentration. Cable networks dominate gigabit delivery. The postcode's rural fringes appear to have access to modern infrastructure, accounting for the minimal below-10Mbps tail. Most households benefit from modern broadband speeds.
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
BT48 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 |
|---|---|---|---|---|
| BT48 0 | 239 | 97% | 0% | 92% |
| BT48 6 | 160 | 98% | 0% | 73% |
| BT48 7 | 215 | 97% | 0% | 87% |
| BT48 8 | 283 | 98% | 0% | 95% |
| BT48 9 | 205 | 98% | 0% | 96% |
All BT48 0 postcodes (239)
All BT48 6 postcodes (160)
All BT48 7 postcodes (215)
All BT48 8 postcodes (283)
All BT48 9 postcodes (205)
Best deals
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Living in Derry City and Strabane
BT48 is a reliably fast postcode suitable for movers who value broadband quality. The 10% non-gigabit portion will almost certainly access superfast service.
Remote worker score
54/100
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
BT48 broadband FAQs
Does BT48's gigabit reach reflect Derry City's infrastructure primarily?
Likely. Derry and Strabane's towns are large enough to support modern cable or fibre rollout, lifting the postcode's aggregate figures.
What happens if I land outside gigabit coverage in BT48?
You'll access superfast (30-300 Mbps) in the vast majority of cases. Fewer than 1 in 150 postcodes drop below 10 Mbps.
Are outlying areas of BT48 noticeably slower than Derry itself?
Possibly. The postcode's scale spans the district, so outer postcodes may show higher superfast-only or slower rates than central locations.
Is BT48 suitable for households with heavy online demands?
Yes. 90% of postcodes have gigabit access, and 99.4% reach at least superfast speeds.
Neighbouring districts
Check your exact postcode
Every postcode in BT48 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