LL66 broadband and area guide
Ofcom coverage, connection speeds, house prices and local data for 22 postcodes across 2 sectors in Isle of Anglesey.
Full fibre
0%
Gigabit
78%
Superfast
79%
Postcodes
22
LL66 is the smallest zone in this batch with just 22 postcodes, yet carries startling gigabit availability. Over three-quarters reach ultrafast speeds.
Broadband speeds in LL66
Share of LL66 premises by the fastest download speed available, averaged across all 22 postcodes in the district.
77.5% of postcodes have gigabit capacity, far exceeding regional and national averages, despite tiny postcode volume. The remaining 1.5% sit in the superfast band. Oddly, 21% of postcodes fall below superfast, the second-highest rate in this range after LL63. This suggests intense patchiness: some premises on premium networks, others on legacy copper within the same small postcode zone. The contradiction hints at mixed infrastructure: perhaps a cable node serving modern housing alongside outlying properties on copper tails. Some postcodes enjoy elite gigabit capacity whilst others lack reliable access. The distribution is sharply polarised. Typical household experience depends entirely on postcode-level proximity to cable deployment. No middle ground between premium and poor performs within the zone.
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
5%
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
LL66 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 |
|---|---|---|---|---|
| LL66 0 | 20 | 80% | 0% | 78% |
| LL66 9 | 2 | 72% | 0% | 72% |
Best deals
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Living in Isle of Anglesey
No wireless services are recorded. Households rely entirely on fixed-line networks, leaving no wireless fallback.
Remote worker score
47/100
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
LL66 broadband FAQs
Why is gigabit so common in such a small area?
LL66's 77.5% gigabit rate suggests concentrated cable investment, even though the zone is only 22 postcodes.
What about the 21% without superfast speeds?
Sharp infrastructure splits within tiny postcode ranges are common. Legacy copper and modern cable can coexist.
Is wireless available as a fallback?
No wireless is recorded here, so households rely entirely on fixed-line networks.
Should I verify my specific postcode?
Definitely. The 77.5% gigabit rate sits alongside a 21% substandard tail, so individual postcodes vary wildly.
Neighbouring districts
Check your exact postcode
Every postcode in LL66 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