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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 SO18. 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
SO18 1AB	Southampton	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 63.7% 4G strong-coverage share is 100%, with 5G at 63.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SO18 1AD	Southampton	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 63.7% 4G strong-coverage share is 100%, with 5G at 63.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SO18 1AE	Southampton	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 63.7% 4G strong-coverage share is 100%, with 5G at 63.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SO18 1AF	Southampton	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 63.7% 4G strong-coverage share is 100%, with 5G at 63.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SO18 1AG	Southampton	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 63.7% 4G strong-coverage share is 100%, with 5G at 63.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SO18 1AH	Southampton	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 63.7% 4G strong-coverage share is 100%, with 5G at 63.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SO18 1AJ	Southampton	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 63.7% 4G strong-coverage share is 100%, with 5G at 63.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SO18 1AL	Southampton	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 63.7% 4G strong-coverage share is 100%, with 5G at 63.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SO18 1AN	Southampton	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 63.7% 4G strong-coverage share is 100%, with 5G at 63.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SO18 1AP	Southampton	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 63.7% 4G strong-coverage share is 100%, with 5G at 63.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SO18 1AQ	Southampton	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 63.7% 4G strong-coverage share is 100%, with 5G at 63.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SO18 1AR	Southampton	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 63.7% 4G strong-coverage share is 100%, with 5G at 63.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SO18 1AS	Southampton	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 63.7% 4G strong-coverage share is 100%, with 5G at 63.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SO18 1AT	Southampton	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 63.7% 4G strong-coverage share is 100%, with 5G at 63.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SO18 1AU	Southampton	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 63.7% 4G strong-coverage share is 100%, with 5G at 63.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SO18 1AW	Southampton	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 63.7% 4G strong-coverage share is 100%, with 5G at 63.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SO18 1AX	Southampton	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 63.7% 4G strong-coverage share is 100%, with 5G at 63.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SO18 1AY	Southampton	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 63.7% 4G strong-coverage share is 100%, with 5G at 63.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SO18 1AZ	Southampton	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 63.7% 4G strong-coverage share is 100%, with 5G at 63.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SO18 1BA	Southampton	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 63.7% 4G strong-coverage share is 100%, with 5G at 63.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SO18 1BB	Southampton	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 63.7% 4G strong-coverage share is 100%, with 5G at 63.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SO18 1BD	Southampton	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 63.7% 4G strong-coverage share is 100%, with 5G at 63.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SO18 1BE	Southampton	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 63.7% 4G strong-coverage share is 100%, with 5G at 63.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SO18 1BF	Southampton	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 63.7% 4G strong-coverage share is 100%, with 5G at 63.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SO18 1BG	Southampton	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 63.7% 4G strong-coverage share is 100%, with 5G at 63.7% 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.

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