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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 CF83. 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
CF83 1AB	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
CF83 1AD	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
CF83 1AE	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
CF83 1AF	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
CF83 1AG	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
CF83 1AH	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
CF83 1AJ	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
CF83 1AL	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
CF83 1AN	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
CF83 1AP	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
CF83 1AQ	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
CF83 1AR	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
CF83 1AS	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
CF83 1AT	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
CF83 1AU	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
CF83 1AW	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
CF83 1AX	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
CF83 1AY	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
CF83 1AZ	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
CF83 1BA	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
CF83 1BB	Caerphilly	Strong broadband coverage Gigabit availability is 98.1%, with 98.1% 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
CF83 1BD	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
CF83 1BE	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
CF83 1BF	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
CF83 1BG	Caerphilly	Broadband coverage is mixed Gigabit availability is 62.5%, with 62.5% 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

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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