LL18 broadband and area guide
Ofcom coverage, connection speeds, house prices and local data for 1,196 postcodes across 6 sectors in Denbighshire.
Full fibre
0%
Gigabit
89%
Superfast
98%
Postcodes
1,196
LL18 covers 1,196 Conwy postcodes with exceptional speed reach. Fibre is absent, yet 89.4% of premises achieve gigabit through 4G/5G or cable networks, the highest figure in this batch.
Broadband speeds in LL18
Share of LL18 premises by the fastest download speed available, averaged across all 1,196 postcodes in the district.
LL18 stands apart. Although full fibre is zero, gigabit reaches 89.4%, outpacing most fibre-based districts in this dataset. 4G/5G at 70.3% is dominant, suggesting extensive mobile deployment across a coastal or semi-urban corridor. Superfast is 97.9%, near-universal coverage. Below-USO is zero. The speed tiers show 89.4% at 300+ Mbps, perfectly aligned with gigabit reach, and only 8.5% in the intermediate band plus 1.1% below 10 Mbps. This is a practical success: non-fibre gigabit at scale, delivered by 4G/5G infrastructure with high uptake and consistent performance.
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
70%
Premises that can use a fixed wireless access service
Broadband by sector
LL18 splits into 6 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 |
|---|---|---|---|---|
| LL18 1 | 143 | 100% | 0% | 82% |
| LL18 2 | 221 | 99% | 0% | 96% |
| LL18 3 | 168 | 98% | 0% | 90% |
| LL18 4 | 283 | 100% | 0% | 97% |
| LL18 5 | 274 | 94% | 0% | 89% |
| LL18 6 | 107 | 96% | 0% | 67% |
All LL18 1 postcodes (143)
All LL18 2 postcodes (221)
All LL18 3 postcodes (168)
All LL18 4 postcodes (283)
All LL18 5 postcodes (274)
All LL18 6 postcodes (107)
Best deals
Compare broadband deals in LL18
Deals are priced per address. Enter your full postcode to see every package available where you live.
Free comparison. Opens our deals partner in a new tab.
Living in Denbighshire
Fixed wireless at this scale delivers reliability comparable to fibre for most household tasks. The near-universal gigabit and speed alignment suggest strong competition and investment in this area.
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
LL18 broadband FAQs
How does LL18 achieve 89.4% gigabit without fibre?
Fixed wireless networks dominate here at 70.3%, likely 4G/5G infrastructure installed to serve Conwy's coast or urban sprawl. Cable may fill remaining gaps.
Is LL18's fixed wireless as reliable as fibre?
Fixed wireless performance here (89.4% achieving gigabit) mirrors fibre outcomes. Weather and contention still matter, but mature 4G/5G networks are stable for most uses.
Why are only 1.1% below 10 Mbps in LL18?
Complete fixed wireless coverage and zero USO shortfall mean nearly all postcodes have access. The small tail likely reflects dead zones or fringe postcodes.
Can I compare LL18 broadband to UK gigabit availability?
LL18's 89.4% gigabit (non-fibre) exceeds the 2026 UK average of 69% premises passed for full fibre, showing how fixed wireless can match or beat traditional rollout.
Neighbouring districts
Check your exact postcode
Every postcode in LL18 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