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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 NP12. 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
NP12 0AA	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
NP12 0AB	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
NP12 0AD	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
NP12 0AE	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
NP12 0AG	Caerphilly	Strong broadband coverage Gigabit availability is 90%, with 90% 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
NP12 0AH	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
NP12 0AJ	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
NP12 0AL	Caerphilly	Broadband coverage is mixed Gigabit availability is 74.1%, with 74.1% 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
NP12 0AN	Caerphilly	Strong broadband coverage Gigabit availability is 83.3%, with 83.3% 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
NP12 0AP	Caerphilly	Strong broadband coverage Gigabit availability is 88.2%, with 88.2% 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
NP12 0AR	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
NP12 0AS	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
NP12 0AT	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
NP12 0AU	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
NP12 0AW	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
NP12 0AX	Caerphilly	Broadband coverage is mixed Gigabit availability is 28.6%, with 28.6% 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
NP12 0AY	Caerphilly	Strong broadband coverage Gigabit availability is 97.4%, with 97.4% 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
NP12 0AZ	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
NP12 0BA	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
NP12 0BB	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
NP12 0BD	Caerphilly	Strong broadband coverage Gigabit availability is 90%, with 90% 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
NP12 0BE	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
NP12 0BG	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
NP12 0BH	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
NP12 0BJ	Caerphilly	Broadband coverage is mixed Gigabit availability is 71.4%, with 71.4% 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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