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 SP1. 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
SP1 1AD	Wiltshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98% · 5G 2.3% 4G strong-coverage share is 98%, with 5G at 2.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SP1 1AF	Wiltshire	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 98% · 5G 2.3% 4G strong-coverage share is 98%, with 5G at 2.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SP1 1AG	Wiltshire	Broadband coverage is mixed Gigabit availability is 40%, with 40% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98% · 5G 2.3% 4G strong-coverage share is 98%, with 5G at 2.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SP1 1AH	Wiltshire	Broadband coverage is mixed Gigabit availability is 14.3%, with 14.3% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98% · 5G 2.3% 4G strong-coverage share is 98%, with 5G at 2.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SP1 1AJ	Wiltshire	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 98% · 5G 2.3% 4G strong-coverage share is 98%, with 5G at 2.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SP1 1AL	Wiltshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98% · 5G 2.3% 4G strong-coverage share is 98%, with 5G at 2.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SP1 1BA	Wiltshire	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 98% · 5G 2.3% 4G strong-coverage share is 98%, with 5G at 2.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SP1 1BB	Wiltshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98% · 5G 2.3% 4G strong-coverage share is 98%, with 5G at 2.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SP1 1BD	Wiltshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98% · 5G 2.3% 4G strong-coverage share is 98%, with 5G at 2.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SP1 1BG	Wiltshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98% · 5G 2.3% 4G strong-coverage share is 98%, with 5G at 2.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SP1 1BL	Wiltshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98% · 5G 2.3% 4G strong-coverage share is 98%, with 5G at 2.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SP1 1BN	Wiltshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98% · 5G 2.3% 4G strong-coverage share is 98%, with 5G at 2.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SP1 1BT	Wiltshire	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 98% · 5G 2.3% 4G strong-coverage share is 98%, with 5G at 2.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SP1 1DA	Wiltshire	Strong broadband coverage Gigabit availability is 91.7%, with 91.7% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98% · 5G 2.3% 4G strong-coverage share is 98%, with 5G at 2.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SP1 1DB	Wiltshire	Partial connectivity coverage No current broadband summary row matched this postcode.	4G 98% · 5G 2.3% 4G strong-coverage share is 98%, with 5G at 2.3% in the current area-level summary.	Mobile year 2025
SP1 1DF	Wiltshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98% · 5G 2.3% 4G strong-coverage share is 98%, with 5G at 2.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SP1 1DL	Wiltshire	Strong broadband coverage Gigabit availability is 82.8%, with 82.8% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98% · 5G 2.3% 4G strong-coverage share is 98%, with 5G at 2.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SP1 1DP	Wiltshire	Strong broadband coverage Gigabit availability is 94.4%, with 94.4% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98% · 5G 2.3% 4G strong-coverage share is 98%, with 5G at 2.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SP1 1DT	Wiltshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98% · 5G 2.3% 4G strong-coverage share is 98%, with 5G at 2.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SP1 1DU	Wiltshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98% · 5G 2.3% 4G strong-coverage share is 98%, with 5G at 2.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SP1 1DX	Wiltshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98% · 5G 2.3% 4G strong-coverage share is 98%, with 5G at 2.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SP1 1DZ	Wiltshire	Broadband coverage is mixed Gigabit availability is 56.3%, with 56.3% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98% · 5G 2.3% 4G strong-coverage share is 98%, with 5G at 2.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SP1 1EA	Wiltshire	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 98% · 5G 2.3% 4G strong-coverage share is 98%, with 5G at 2.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SP1 1ED	Wiltshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98% · 5G 2.3% 4G strong-coverage share is 98%, with 5G at 2.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SP1 1EE	Wiltshire	Strong broadband coverage Gigabit availability is 90%, with 90% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98% · 5G 2.3% 4G strong-coverage share is 98%, with 5G at 2.3% 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.