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 SA40. 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
SA40 9AA Carmarthenshire Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 94.3%
4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SA40 9AB Carmarthenshire Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 94.3%
4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SA40 9AD Carmarthenshire Partial connectivity coverage
No current broadband summary row matched this postcode.
 4G 94.3%
4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.
 Mobile year 2025
SA40 9QA Carmarthenshire Strong broadband coverage
Gigabit availability is 85.7%, with 85.7% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 94.3%
4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SA40 9QB Carmarthenshire Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 94.3%
4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SA40 9QD Carmarthenshire Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 94.3%
4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SA40 9QE Carmarthenshire Broadband coverage is mixed
Gigabit availability is 37.5%, with 37.5% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 94.3%
4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SA40 9QG Carmarthenshire Strong broadband coverage
Gigabit availability is 87.5%, with 87.5% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 94.3%
4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SA40 9QJ Carmarthenshire Strong broadband coverage
Gigabit availability is 92.3%, with 92.3% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 94.3%
4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SA40 9QL Carmarthenshire Strong broadband coverage
Gigabit availability is 85.7%, with 85.7% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 94.3%
4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SA40 9QN Carmarthenshire Below-USO risk present
Gigabit availability is 55.6%, with 55.6% of premises at at least 300 Mbps and 22.2% below the Universal Service Obligation.
 4G 94.3%
4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SA40 9QP Carmarthenshire Below-USO risk present
Gigabit availability is 0%, with 0% of premises at at least 300 Mbps and 80% below the Universal Service Obligation.
 4G 94.3%
4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SA40 9QQ Carmarthenshire Strong broadband coverage
Gigabit availability is 80%, with 80% of premises at at least 300 Mbps and 13.3% below the Universal Service Obligation.
 4G 94.3%
4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SA40 9QR Carmarthenshire 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 94.3%
4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SA40 9QS Carmarthenshire 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 94.3%
4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SA40 9QT Carmarthenshire Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 94.3%
4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SA40 9QU Carmarthenshire Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 94.3%
4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SA40 9QX Carmarthenshire Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 94.3%
4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SA40 9QZ Carmarthenshire Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 94.3%
4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SA40 9RA Carmarthenshire Broadband coverage is mixed
Gigabit availability is 8.3%, with 8.3% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 94.3%
4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SA40 9RB Carmarthenshire Below-USO risk present
Gigabit availability is 53.1%, with 53.1% of premises at at least 300 Mbps and 6.3% below the Universal Service Obligation.
 4G 94.3%
4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SA40 9RD Carmarthenshire Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 94.3%
4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SA40 9RE Carmarthenshire Below-USO risk present
Gigabit availability is 46.2%, with 46.2% of premises at at least 300 Mbps and 30.8% below the Universal Service Obligation.
 4G 94.3%
4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SA40 9RF Carmarthenshire 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 94.3%
4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SA40 9RG Carmarthenshire Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 94.3%
4G strong-coverage share is 94.3%, 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.