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 SW1X. 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
SW1X 0AA Kensington and Chelsea Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 98.7%
4G strong-coverage share is 100%, with 5G at 98.7% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SW1X 0AB Kensington and Chelsea Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 98.7%
4G strong-coverage share is 100%, with 5G at 98.7% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SW1X 0AD Kensington and Chelsea Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 98.7%
4G strong-coverage share is 100%, with 5G at 98.7% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SW1X 0AE Kensington and Chelsea Strong broadband coverage
Gigabit availability is 94.1%, with 94.1% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 98.7%
4G strong-coverage share is 100%, with 5G at 98.7% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SW1X 0AF Kensington and Chelsea Strong broadband coverage
Gigabit availability is 88%, with 88% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 98.7%
4G strong-coverage share is 100%, with 5G at 98.7% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SW1X 0AS Kensington and Chelsea Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 98.7%
4G strong-coverage share is 100%, with 5G at 98.7% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SW1X 0AT Kensington and Chelsea Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 98.7%
4G strong-coverage share is 100%, with 5G at 98.7% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SW1X 0AU Kensington and Chelsea Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 98.7%
4G strong-coverage share is 100%, with 5G at 98.7% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SW1X 0AW Kensington and Chelsea Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 98.7%
4G strong-coverage share is 100%, with 5G at 98.7% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SW1X 0AX Kensington and Chelsea Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 98.7%
4G strong-coverage share is 100%, with 5G at 98.7% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SW1X 0AY Kensington and Chelsea Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 98.7%
4G strong-coverage share is 100%, with 5G at 98.7% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SW1X 0AZ Kensington and Chelsea Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 98.7%
4G strong-coverage share is 100%, with 5G at 98.7% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SW1X 0BB Kensington and Chelsea Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 98.7%
4G strong-coverage share is 100%, with 5G at 98.7% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SW1X 0BD Kensington and Chelsea Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 98.7%
4G strong-coverage share is 100%, with 5G at 98.7% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SW1X 0BH Kensington and Chelsea Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 98.7%
4G strong-coverage share is 100%, with 5G at 98.7% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SW1X 0BJ Kensington and Chelsea Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 98.7%
4G strong-coverage share is 100%, with 5G at 98.7% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SW1X 0BL Kensington and Chelsea Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 98.7%
4G strong-coverage share is 100%, with 5G at 98.7% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SW1X 0BN Kensington and Chelsea 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 100% · 5G 98.7%
4G strong-coverage share is 100%, with 5G at 98.7% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SW1X 0BP Kensington and Chelsea 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 100% · 5G 98.7%
4G strong-coverage share is 100%, with 5G at 98.7% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SW1X 0BW Kensington and Chelsea Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 98.7%
4G strong-coverage share is 100%, with 5G at 98.7% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SW1X 0DA Kensington and Chelsea Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 98.7%
4G strong-coverage share is 100%, with 5G at 98.7% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SW1X 0DB Kensington and Chelsea Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 98.7%
4G strong-coverage share is 100%, with 5G at 98.7% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SW1X 0DE Kensington and Chelsea Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 98.7%
4G strong-coverage share is 100%, with 5G at 98.7% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SW1X 0DF Kensington and Chelsea Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 98.7%
4G strong-coverage share is 100%, with 5G at 98.7% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
SW1X 0DG Kensington and Chelsea Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 98.7%
4G strong-coverage share is 100%, with 5G at 98.7% 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.