LL54 broadband and area guide
Ofcom coverage, connection speeds, house prices and local data for 516 postcodes across 3 sectors in Gwynedd.
Full fibre
0%
Gigabit
79%
Superfast
93%
Postcodes
516
LL54 covers 516 Gwynedd postcodes with strong gigabit reach (78.7%) and cable dominance. Wireless infrastructure has minimal presence (0.9%).
Broadband speeds in LL54
Share of LL54 premises by the fastest download speed available, averaged across all 516 postcodes in the district.
Gigabit deployment reaches 78.7% of LL54, supported by cable networks (zero full-fibre, 0.9% wireless). Superfast is widely available at 92.7%. The speed profile skews decisively upmarket: 78.7% access 300+ Mbps, 14% sit in the 30-300 superfast band, and 3.4% fall below 10 Mbps. Below-USO premises are negligible at 0.4%. LL54's 516 postcodes, a mid-to-large district, suggest systematic cable build-out, likely in and around population centres in North Gwynedd. The 3.4% below-10 Mbps contingent represents a manageable minority, mostly in remote valleys or properties predating network expansion.
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
<1%
Premises that can use a fixed wireless access service
Broadband by sector
LL54 splits into 3 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 |
|---|---|---|---|---|
| LL54 5 | 165 | 90% | 0% | 82% |
| LL54 6 | 157 | 96% | 0% | 92% |
| LL54 7 | 194 | 92% | TBC | 65% |
All LL54 5 postcodes (165)
All LL54 6 postcodes (157)
All LL54 7 postcodes (194)
Best deals
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Living in Gwynedd
LL54 ranks among Gwynedd's most reliably served districts, with gigabit available to most residents and acceptable speed coverage exceeding 96%.
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
LL54 broadband FAQs
Why is wireless infrastructure barely deployed in LL54?
Cable networks have achieved sufficient penetration; wireless infrastructure deployment was not necessary or economical.
What's the connectivity floor in LL54?
92.7% reach superfast; 3.4% fall below 10 Mbps, but such cases are concentrated in geographic outliers.
Is gigabit common in LL54?
Yes; 78.7% of postcodes have gigabit capability, making it the modal service tier.
How many postcodes comprise LL54?
LL54 spans 516 postcodes in Gwynedd.
Neighbouring districts
Check your exact postcode
Every postcode in LL54 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