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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 NP11. 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
NP11 3AD	Caerphilly	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.9% · 5G 8.6% 4G strong-coverage share is 99.9%, with 5G at 8.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NP11 3AE	Caerphilly	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 99.9% · 5G 8.6% 4G strong-coverage share is 99.9%, with 5G at 8.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NP11 3AF	Caerphilly	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 99.9% · 5G 8.6% 4G strong-coverage share is 99.9%, with 5G at 8.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NP11 3AG	Caerphilly	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 99.9% · 5G 8.6% 4G strong-coverage share is 99.9%, with 5G at 8.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NP11 3AH	Caerphilly	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 99.9% · 5G 8.6% 4G strong-coverage share is 99.9%, with 5G at 8.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NP11 3AJ	Caerphilly	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.9% · 5G 8.6% 4G strong-coverage share is 99.9%, with 5G at 8.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NP11 3AL	Caerphilly	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.9% · 5G 8.6% 4G strong-coverage share is 99.9%, with 5G at 8.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NP11 3AN	Caerphilly	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.9% · 5G 8.6% 4G strong-coverage share is 99.9%, with 5G at 8.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NP11 3AP	Caerphilly	Strong broadband coverage Gigabit availability is 80%, with 80% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.9% · 5G 8.6% 4G strong-coverage share is 99.9%, with 5G at 8.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NP11 3AQ	Caerphilly	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 99.9% · 5G 8.6% 4G strong-coverage share is 99.9%, with 5G at 8.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NP11 3AR	Caerphilly	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.9% · 5G 8.6% 4G strong-coverage share is 99.9%, with 5G at 8.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NP11 3AS	Caerphilly	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.9% · 5G 8.6% 4G strong-coverage share is 99.9%, with 5G at 8.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NP11 3AT	Caerphilly	Strong broadband coverage Gigabit availability is 96.2%, with 96.2% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.9% · 5G 8.6% 4G strong-coverage share is 99.9%, with 5G at 8.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NP11 3AU	Caerphilly	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.9% · 5G 8.6% 4G strong-coverage share is 99.9%, with 5G at 8.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NP11 3AW	Caerphilly	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.9% · 5G 8.6% 4G strong-coverage share is 99.9%, with 5G at 8.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NP11 3AX	Caerphilly	Broadband coverage is mixed Gigabit availability is 12.5%, with 12.5% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.9% · 5G 8.6% 4G strong-coverage share is 99.9%, with 5G at 8.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NP11 3AY	Caerphilly	Strong broadband coverage Gigabit availability is 87.5%, with 87.5% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.9% · 5G 8.6% 4G strong-coverage share is 99.9%, with 5G at 8.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NP11 3AZ	Caerphilly	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 99.9% · 5G 8.6% 4G strong-coverage share is 99.9%, with 5G at 8.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NP11 3BA	Caerphilly	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.9% · 5G 8.6% 4G strong-coverage share is 99.9%, with 5G at 8.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NP11 3BB	Caerphilly	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 99.9% · 5G 8.6% 4G strong-coverage share is 99.9%, with 5G at 8.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NP11 3BD	Caerphilly	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 99.9% · 5G 8.6% 4G strong-coverage share is 99.9%, with 5G at 8.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NP11 3BE	Caerphilly	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 99.9% · 5G 8.6% 4G strong-coverage share is 99.9%, with 5G at 8.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NP11 3BG	Caerphilly	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.9% · 5G 8.6% 4G strong-coverage share is 99.9%, with 5G at 8.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NP11 3BH	Caerphilly	Broadband coverage is mixed Gigabit availability is 72.7%, with 72.7% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.9% · 5G 8.6% 4G strong-coverage share is 99.9%, with 5G at 8.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NP11 3BJ	Caerphilly	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 99.9% · 5G 8.6% 4G strong-coverage share is 99.9%, with 5G at 8.6% 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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