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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 W11. 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
W11 1AA	Westminster	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 100% 4G strong-coverage share is 100%, with 5G at 100% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
W11 1AB	Kensington and Chelsea	Broadband coverage is mixed Gigabit availability is 0%, 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
W11 1AD	Kensington and Chelsea	Strong broadband coverage Gigabit availability is 82%, with 82% 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
W11 1AE	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
W11 1AF	Westminster	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 100% 4G strong-coverage share is 100%, with 5G at 100% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
W11 1AG	Westminster	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 100% 4G strong-coverage share is 100%, with 5G at 100% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
W11 1AH	Westminster	Partial connectivity coverage No current broadband summary row matched this postcode.	4G 100% · 5G 100% 4G strong-coverage share is 100%, with 5G at 100% in the current area-level summary.	Mobile year 2025
W11 1AL	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
W11 1AN	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
W11 1AP	Westminster	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 100% 4G strong-coverage share is 100%, with 5G at 100% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
W11 1AR	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
W11 1AS	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
W11 1AT	Westminster	Broadband coverage is mixed Gigabit availability is 39.1%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 100% · 5G 100% 4G strong-coverage share is 100%, with 5G at 100% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
W11 1AU	Westminster	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 100% 4G strong-coverage share is 100%, with 5G at 100% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
W11 1AW	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
W11 1AX	Westminster	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 100% 4G strong-coverage share is 100%, with 5G at 100% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
W11 1AY	Westminster	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 100% 4G strong-coverage share is 100%, with 5G at 100% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
W11 1AZ	Westminster	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 100% 4G strong-coverage share is 100%, with 5G at 100% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
W11 1BA	Westminster	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 100% 4G strong-coverage share is 100%, with 5G at 100% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
W11 1BD	Westminster	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 100% 4G strong-coverage share is 100%, with 5G at 100% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
W11 1BE	Westminster	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 100% 4G strong-coverage share is 100%, with 5G at 100% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
W11 1BJ	Westminster	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 100% 4G strong-coverage share is 100%, with 5G at 100% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
W11 1BL	Westminster	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 100% 4G strong-coverage share is 100%, with 5G at 100% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
W11 1BN	Westminster	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 100% 4G strong-coverage share is 100%, with 5G at 100% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
W11 1BP	Westminster	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 100% 4G strong-coverage share is 100%, with 5G at 100% 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.

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