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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 SO15. 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
SO15 0AB	Southampton	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 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
SO15 0AD	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
SO15 0AE	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
SO15 0AF	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
SO15 0AJ	Southampton	Partial connectivity coverage No current broadband summary row matched this postcode.	4G 100% · 5G 63.7% 4G strong-coverage share is 100%, with 5G at 63.7% in the current area-level summary.	Mobile year 2025
SO15 0AL	Southampton	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 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
SO15 0AR	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
SO15 0AS	Southampton	Partial connectivity coverage No current broadband summary row matched this postcode.	4G 100% · 5G 63.7% 4G strong-coverage share is 100%, with 5G at 63.7% in the current area-level summary.	Mobile year 2025
SO15 0AW	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
SO15 0BS	Southampton	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 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
SO15 0BT	Southampton	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 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
SO15 0BY	Southampton	Partial connectivity coverage No current broadband summary row matched this postcode.	4G 100% · 5G 63.7% 4G strong-coverage share is 100%, with 5G at 63.7% in the current area-level summary.	Mobile year 2025
SO15 0DR	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
SO15 0GN	Southampton	Broadband coverage is mixed Gigabit availability is 33.3%, with 33.3% 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
SO15 0HH	Southampton	Below-USO risk present Gigabit availability is 0%, with 0% of premises at at least 300 Mbps and 7.7% 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
SO15 0HT	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
SO15 0HU	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
SO15 0HW	Southampton	Strong broadband coverage Gigabit availability is 99.1%, with 99.1% 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
SO15 0HX	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
SO15 0JA	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
SO15 0JU	Southampton	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 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
SO15 0JW	Southampton	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 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
SO15 0JX	Southampton	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 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
SO15 0JY	Southampton	Broadband coverage is mixed Gigabit availability is 8.3%, with 8.3% 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
SO15 0JZ	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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