BT16 broadband and area guide
Ofcom coverage, connection speeds, house prices and local data for 386 postcodes across 2 sectors in Lisburn and Castlereagh.
Full fibre
0%
Gigabit
97%
Superfast
99%
Postcodes
386
BT16 covers 386 postcodes in Ards and North Down. Gigabit infrastructure reaches 97.2%, with superfast covering 99.2% of the area.
Broadband speeds in BT16
Share of BT16 premises by the fastest download speed available, averaged across all 386 postcodes in the district.
Strong gigabit presence across BT16: 97.2% of the 386 postcodes are ultrafast-capable via cable or fibre infrastructure. Superfast covers 99.2% of all postcodes. The speed breakdown shows: 97.2% at gigabit speeds, 2% between 30 to 300 Mbps superfast, 0.3% below 10 Mbps. Only one postcode misses USO standards entirely. This consistency reflects reliable cable or fibre rollout to the Ards and North Down peninsula. Households can confidently plan fixed broadband without fear of speed constraints or service gaps. The high gigabit availability across nearly 400 postcodes indicates successful infrastructure investment in the region.
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
0%
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
BT16 splits into 2 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 |
|---|---|---|---|---|
| BT16 1 | 183 | 99% | 0% | 96% |
| BT16 2 | 203 | 99% | 0% | 98% |
All BT16 1 postcodes (183)
All BT16 2 postcodes (203)
Best deals
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Living in Lisburn and Castlereagh
BT16 spans a suburban and semi-rural area with excellent infrastructure penetration. Fewer postcodes than Belfast proper (386 total) but maintaining high standards.
Remote worker score
55/100
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
BT16 broadband FAQs
What proportion of BT16 reaches gigabit?
97.2% of the 386 postcodes are gigabit-capable, one of the highest rates in the region.
How many postcodes are below USO?
One postcode (0.3%) reports below-10Mbps speeds. The rest are well-connected.
Is BT16 more reliably connected than central Belfast?
Yes. BT16's 97.2% ultrafast significantly exceeds central codes, making it notably more reliable for broadband-dependent households.
What speeds will a household in BT16 typically see?
Gigabit-capable connections for almost all postcodes, enabling simultaneous streaming, video calls, and work uploads without degradation.
Neighbouring districts
Check your exact postcode
Every postcode in BT16 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