Broadband and mobile checker

Search a postcode or postcode area against the current live broadband and mobile coverage seams.

Source: Ofcom broadband and mobile coverage. Coverage: Live connectivity rows matched postcode area LL66. Broadband is postcode level and mobile coverage remains area-level only in the current public seam.. Freshness: Broadband year 2024 · Mobile year 2025. Matches: 22.
Postcode Area Broadband Mobile Freshness
LL66 0AA Isle of Anglesey Strong broadband coverage
Gigabit availability is 80%, with 80% of premises at at least 300 Mbps and 20% below the Universal Service Obligation.
 4G 93.7%
4G strong-coverage share is 93.7%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL66 0AB Isle of Anglesey Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 10.5% below the Universal Service Obligation.
 4G 93.7%
4G strong-coverage share is 93.7%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL66 0AD Isle of Anglesey Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.7%
4G strong-coverage share is 93.7%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL66 0AE Isle of Anglesey Below-USO risk present
Gigabit availability is 57.7%, with 57.7% of premises at at least 300 Mbps and 19.2% below the Universal Service Obligation.
 4G 93.7%
4G strong-coverage share is 93.7%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL66 0AN Isle of Anglesey Broadband coverage is mixed
Gigabit availability is 33.3%, with 33.3% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.7%
4G strong-coverage share is 93.7%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL66 0AP Isle of Anglesey Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.7%
4G strong-coverage share is 93.7%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL66 0AR Isle of Anglesey Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.7%
4G strong-coverage share is 93.7%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL66 0AS Isle of Anglesey Strong broadband coverage
Gigabit availability is 83.3%, with 83.3% of premises at at least 300 Mbps and 16.7% below the Universal Service Obligation.
 4G 93.7%
4G strong-coverage share is 93.7%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL66 0AT Isle of Anglesey Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.7%
4G strong-coverage share is 93.7%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL66 0AU Isle of Anglesey Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.7%
4G strong-coverage share is 93.7%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL66 0AW Isle of Anglesey Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.7%
4G strong-coverage share is 93.7%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL66 0AX Isle of Anglesey Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.7%
4G strong-coverage share is 93.7%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL66 0AY Isle of Anglesey Broadband coverage is mixed
Gigabit availability is 60%, with 60% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.7%
4G strong-coverage share is 93.7%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL66 0BE Isle of Anglesey Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.7%
4G strong-coverage share is 93.7%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL66 0BG Isle of Anglesey Broadband coverage is mixed
Gigabit availability is 30.8%, with 30.8% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.7%
4G strong-coverage share is 93.7%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL66 0BH Isle of Anglesey Below-USO risk present
Gigabit availability is 0%, with 0% of premises at at least 300 Mbps and 100% below the Universal Service Obligation.
 4G 93.7%
4G strong-coverage share is 93.7%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL66 0BL Isle of Anglesey Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.7%
4G strong-coverage share is 93.7%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL66 0BN Isle of Anglesey Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.7%
4G strong-coverage share is 93.7%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL66 0BP Isle of Anglesey Strong broadband coverage
Gigabit availability is 75%, with 75% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.7%
4G strong-coverage share is 93.7%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL66 0BW Isle of Anglesey Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.7%
4G strong-coverage share is 93.7%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL66 9AA Isle of Anglesey Strong broadband coverage
Gigabit availability is 80%, with 80% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.7%
4G strong-coverage share is 93.7%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL66 9AB Isle of Anglesey Below-USO risk present
Gigabit availability is 42.9%, with 42.9% of premises at at least 300 Mbps and 28.6% below the Universal Service Obligation.
 4G 93.7%
4G strong-coverage share is 93.7%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025

Known caveats

  • Mobile coverage is still served at area level in the public seam, so treat it as a shortlist signal rather than a street-level verdict.
  • Connectivity rows do not replace a final provider and address-level availability check before you commit to a property.
  • If you search a postcode area, neighbouring postcode rows can differ enough that the exact postcode follow-up still matters.