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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 SM1. 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
SM1 1AA	Sutton	Partial connectivity coverage No current broadband summary row matched this postcode.	4G 100% · 5G 93.3% 4G strong-coverage share is 100%, with 5G at 93.3% in the current area-level summary.	Mobile year 2025
SM1 1AG	Sutton	Broadband coverage is mixed Gigabit availability is 50%, with 50% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 100% · 5G 93.3% 4G strong-coverage share is 100%, with 5G at 93.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SM1 1AH	Sutton	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 93.3% 4G strong-coverage share is 100%, with 5G at 93.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SM1 1AJ	Sutton	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 93.3% 4G strong-coverage share is 100%, with 5G at 93.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SM1 1AN	Sutton	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 93.3% 4G strong-coverage share is 100%, with 5G at 93.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SM1 1AP	Sutton	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 93.3% 4G strong-coverage share is 100%, with 5G at 93.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SM1 1AT	Sutton	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 93.3% 4G strong-coverage share is 100%, with 5G at 93.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SM1 1AW	Sutton	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 93.3% 4G strong-coverage share is 100%, with 5G at 93.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SM1 1AX	Sutton	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 93.3% 4G strong-coverage share is 100%, with 5G at 93.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SM1 1AY	Sutton	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 100% · 5G 93.3% 4G strong-coverage share is 100%, with 5G at 93.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SM1 1AZ	Sutton	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 93.3% 4G strong-coverage share is 100%, with 5G at 93.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SM1 1BB	Sutton	Broadband coverage is mixed Gigabit availability is 44.4%, with 44.4% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 100% · 5G 93.3% 4G strong-coverage share is 100%, with 5G at 93.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SM1 1BG	Sutton	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 93.3% 4G strong-coverage share is 100%, with 5G at 93.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SM1 1BT	Sutton	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 93.3% 4G strong-coverage share is 100%, with 5G at 93.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SM1 1DA	Sutton	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 93.3% 4G strong-coverage share is 100%, with 5G at 93.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SM1 1DD	Sutton	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 93.3% 4G strong-coverage share is 100%, with 5G at 93.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SM1 1DE	Sutton	Broadband coverage is mixed Gigabit availability is 66.7%, with 66.7% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 100% · 5G 93.3% 4G strong-coverage share is 100%, with 5G at 93.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SM1 1DF	Sutton	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 93.3% 4G strong-coverage share is 100%, with 5G at 93.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SM1 1DJ	Sutton	Broadband coverage is mixed Gigabit availability is 62.5%, with 62.5% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 100% · 5G 93.3% 4G strong-coverage share is 100%, with 5G at 93.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SM1 1DR	Sutton	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 93.3% 4G strong-coverage share is 100%, with 5G at 93.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SM1 1DS	Sutton	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 93.3% 4G strong-coverage share is 100%, with 5G at 93.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SM1 1DT	Sutton	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 93.3% 4G strong-coverage share is 100%, with 5G at 93.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SM1 1DU	Sutton	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 93.3% 4G strong-coverage share is 100%, with 5G at 93.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SM1 1DZ	Sutton	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 93.3% 4G strong-coverage share is 100%, with 5G at 93.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SM1 1EA	Sutton	Broadband coverage is mixed Gigabit availability is 25%, with 25% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 100% · 5G 93.3% 4G strong-coverage share is 100%, with 5G at 93.3% 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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