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 BN17. 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
BN17 5AB	Arun	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 99.8% · 5G 35.7% 4G strong-coverage share is 99.8%, with 5G at 35.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
BN17 5AD	Arun	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 99.8% · 5G 35.7% 4G strong-coverage share is 99.8%, with 5G at 35.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
BN17 5AF	Arun	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 99.8% · 5G 35.7% 4G strong-coverage share is 99.8%, with 5G at 35.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
BN17 5AG	Arun	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 99.8% · 5G 35.7% 4G strong-coverage share is 99.8%, with 5G at 35.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
BN17 5AH	Arun	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 99.8% · 5G 35.7% 4G strong-coverage share is 99.8%, with 5G at 35.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
BN17 5AJ	Arun	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 99.8% · 5G 35.7% 4G strong-coverage share is 99.8%, with 5G at 35.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
BN17 5AL	Arun	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 99.8% · 5G 35.7% 4G strong-coverage share is 99.8%, with 5G at 35.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
BN17 5AP	Arun	Below-USO risk present Gigabit availability is 0%, with 0% of premises at at least 300 Mbps and 25% below the Universal Service Obligation.	4G 99.8% · 5G 35.7% 4G strong-coverage share is 99.8%, with 5G at 35.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
BN17 5AQ	Arun	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 99.8% · 5G 35.7% 4G strong-coverage share is 99.8%, with 5G at 35.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
BN17 5AR	Arun	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 99.8% · 5G 35.7% 4G strong-coverage share is 99.8%, with 5G at 35.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
BN17 5AS	Arun	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 99.8% · 5G 35.7% 4G strong-coverage share is 99.8%, with 5G at 35.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
BN17 5AT	Arun	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 99.8% · 5G 35.7% 4G strong-coverage share is 99.8%, with 5G at 35.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
BN17 5AU	Arun	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 99.8% · 5G 35.7% 4G strong-coverage share is 99.8%, with 5G at 35.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
BN17 5AW	Arun	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.8% · 5G 35.7% 4G strong-coverage share is 99.8%, with 5G at 35.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
BN17 5AX	Arun	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 99.8% · 5G 35.7% 4G strong-coverage share is 99.8%, with 5G at 35.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
BN17 5AZ	Arun	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 99.8% · 5G 35.7% 4G strong-coverage share is 99.8%, with 5G at 35.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
BN17 5BA	Arun	Broadband coverage is mixed Gigabit availability is 26.1%, with 26.1% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.8% · 5G 35.7% 4G strong-coverage share is 99.8%, with 5G at 35.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
BN17 5BB	Arun	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 99.8% · 5G 35.7% 4G strong-coverage share is 99.8%, with 5G at 35.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
BN17 5BD	Arun	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.8% · 5G 35.7% 4G strong-coverage share is 99.8%, with 5G at 35.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
BN17 5BE	Arun	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 99.8% · 5G 35.7% 4G strong-coverage share is 99.8%, with 5G at 35.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
BN17 5BF	Arun	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 99.8% · 5G 35.7% 4G strong-coverage share is 99.8%, with 5G at 35.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
BN17 5BG	Arun	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 99.8% · 5G 35.7% 4G strong-coverage share is 99.8%, with 5G at 35.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
BN17 5BH	Arun	Broadband coverage is mixed Gigabit availability is 20%, with 20% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.8% · 5G 35.7% 4G strong-coverage share is 99.8%, with 5G at 35.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
BN17 5BJ	Arun	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.8% · 5G 35.7% 4G strong-coverage share is 99.8%, with 5G at 35.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
BN17 5BL	Arun	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 99.8% · 5G 35.7% 4G strong-coverage share is 99.8%, with 5G at 35.7% 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.