Ofcom data · 199 postcodes

LL23 broadband coverage — Gwynedd

Full-fibre, gigabit and superfast broadband availability across the LL23 postcode district, plus business broadband and leased-line options for Gwynedd.

Mixed coverage

Superfast (30Mb+)

73.4%

Ultrafast (300Mb+)

35.1%

Gigabit-capable

35.1%

Below USO (10Mb)

4.3%

Check broadband at your exact LL23 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 LL23

Broadband availability in the LL23 postcode district (Gwynedd) is Mixed — superfast is available to many but not all premises. Across the 199 postcodes Ofcom measures in LL23, superfast broadband (30 Mbit/s or faster) reaches 73.4% of premises and gigabit-capable lines are available to 35.1%.

Around 4.3% of premises in LL23 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 LL23

Postcode	Superfast	Gigabit
LL23 7AA	100%	0%
LL23 7AB	100%	0%
LL23 7AD	100%	0%
LL23 7AE	97.4%	0%
LL23 7AF	100%	0%
LL23 7AG	100%	0%
LL23 7AH	100%	0%
LL23 7AJ	100%	0%
LL23 7AL	100%	0%
LL23 7AN	100%	0%

Business broadband & leased lines in Gwynedd

Whether the LL23 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 LL23

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 LL23 area (Gwynedd)?

In the LL23 area (Gwynedd), superfast broadband (30 Mbit/s+) is available to approximately 73.4% of premises and gigabit-capable broadband to around 35.1%, 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 LL23 area (Gwynedd)?

Gigabit-capable coverage in the LL23 area (Gwynedd) stands at about 35.1% 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 LL23 area (Gwynedd)?

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 LL23 area (Gwynedd)?

Most UK providers serve the LL23 area (Gwynedd) 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.