Ofcom data · 22 postcodes

LL66 broadband coverage — Isle of Anglesey

Full-fibre, gigabit and superfast broadband availability across the LL66 postcode district, plus business broadband and leased-line options for Isle of Anglesey.

Strong coverage

Superfast (30Mb+)

76.6%

Ultrafast (300Mb+)

76.6%

Gigabit-capable

76.6%

Below USO (10Mb)

8.8%

Check broadband at your exact LL66 postcode

District figures are an average — get the precise availability, full-fibre status and mobile signal for your address.

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Broadband in LL66

Broadband availability in the LL66 postcode district (Isle of Anglesey) is Strong — superfast is near-universal and gigabit is rolling out. Across the 22 postcodes Ofcom measures in LL66, superfast broadband (30 Mbit/s or faster) reaches 76.6% of premises and gigabit-capable lines are available to 76.6%.

Around 8.8% of premises in LL66 fall below the Universal Service Obligation (a minimum of 10 Mbit/s download and 1 Mbit/s upload), so the overwhelming majority of homes and businesses here can already order a decent fixed line. For a business that depends on its connection, the figures that matter most are gigabit and full-fibre availability — the symmetric, low-contention services we quote leased lines and FTTP against.

Sample postcodes in LL66

Postcode	Superfast	Gigabit
LL66 0AA	80%	80%
LL66 0AB	89.5%	89.5%
LL66 0AD	100%	100%
LL66 0AE	57.7%	57.7%
LL66 0AN	33.3%	33.3%
LL66 0AP	100%	100%
LL66 0AR	100%	100%
LL66 0AS	71.4%	71.4%
LL66 0AT	100%	100%
LL66 0AU	100%	100%

Business broadband & leased lines in Isle of Anglesey

Whether the LL66 district has full fibre yet or not, we can connect your business. Where FTTP and gigabit are live we quote ultrafast full-fibre; where they aren't, a leased line still delivers guaranteed, symmetric speeds with an SLA. We also handle mobile coverage and VoIP for the same site.

Get a business broadband quote for LL66

Free, no obligation — full fibre, leased line or FTTC, matched to what's actually available at your postcode.

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Nearby LL districts

LL11 — 43.9% gigabit LL18 — 85.2% gigabit LL13 — 61.7% gigabit LL14 — 52.5% gigabit LL65 — 60.5% gigabit LL57 — 35.2% gigabit LL12 — 82.9% gigabit LL53 — 50.4% gigabit LL55 — 69% gigabit LL30 — 89.3% gigabit

See all Llandudno (LL) broadband coverage ›

Frequently asked questions

What broadband speeds are available in the LL66 area (Isle of Anglesey)?

In the LL66 area (Isle of Anglesey), superfast broadband (30 Mbit/s+) is available to approximately 76.6% of premises and gigabit-capable broadband to around 76.6%, based on Ofcom Connected Nations data. Exact availability varies by postcode — enter your full postcode in our checker for a precise result.

Can I get full-fibre or gigabit broadband in the LL66 area (Isle of Anglesey)?

Gigabit-capable coverage in the LL66 area (Isle of Anglesey) stands at about 76.6% of premises. Where gigabit and full-fibre (FTTP) are live, businesses can order symmetric, low-latency connections — ideal for cloud, VoIP and multi-site working. If full fibre hasn't reached your premises yet, a leased line can still deliver guaranteed gigabit speeds.

How do I check broadband at my exact address in the LL66 area (Isle of Anglesey)?

Use the free broadband postcode checker on this page: enter your postcode to see fixed-broadband availability, gigabit/full-fibre coverage and mobile signal for all four networks at that location, sourced from official Ofcom data.

Who provides business broadband in the LL66 area (Isle of Anglesey)?

Most UK providers serve the LL66 area (Isle of Anglesey) over the Openreach and (where present) CityFibre or Virgin Media networks. Connection Technologies arranges business broadband, full-fibre (FTTP) and leased lines across the area — request a quote to compare options for your postcode.

Broadband availability data © 2026 Ofcom (Connected Nations), licensed under the Open Government Licence v3.0. Figures are area averages and predictions; availability at an individual address may differ — always confirm with a postcode-level check.