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 LL55. Broadband is postcode level and mobile coverage remains area-level only in the current public seam.. Freshness: Broadband year 2024 · Mobile year 2025. Matches: 25.
Postcode Area Broadband Mobile Freshness
LL55 1AB Gwynedd Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.8%
4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL55 1AF Gwynedd Strong broadband coverage
Gigabit availability is 85%, with 85% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.8%
4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL55 1AG Gwynedd Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.8%
4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL55 1AJ Gwynedd Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.8%
4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL55 1AN Gwynedd Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.8%
4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL55 1AQ Gwynedd Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.8%
4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL55 1AR Gwynedd Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.8%
4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL55 1AS Gwynedd Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.8%
4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL55 1AT Gwynedd Strong broadband coverage
Gigabit availability is 91.3%, with 91.3% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.8%
4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL55 1AX Gwynedd Strong broadband coverage
Gigabit availability is 86.7%, with 86.7% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.8%
4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL55 1AY Gwynedd Broadband coverage is mixed
Gigabit availability is 0%, with 0% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.8%
4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL55 1AZ Gwynedd Broadband coverage is mixed
Gigabit availability is 0%, with 0% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.8%
4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL55 1BA Gwynedd Strong broadband coverage
Gigabit availability is 89.5%, with 89.5% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.8%
4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL55 1BB Gwynedd Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.8%
4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL55 1BD Gwynedd Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.8%
4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL55 1BE Gwynedd Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.8%
4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL55 1BF Gwynedd Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.8%
4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL55 1BG Gwynedd Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.8%
4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL55 1BH Gwynedd Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.8%
4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL55 1BJ Gwynedd Strong broadband coverage
Gigabit availability is 81.8%, with 81.8% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.8%
4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL55 1BL Gwynedd Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.8%
4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL55 1BP Gwynedd Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.8%
4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL55 1BQ Gwynedd Broadband coverage is mixed
Gigabit availability is 0%, with 0% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.8%
4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL55 1BS Gwynedd Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.8%
4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
LL55 1BT Gwynedd Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 93.8%
4G strong-coverage share is 93.8%, 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.