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 CF10. 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
CF10 1AA	Cardiff	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 95.9% 4G strong-coverage share is 99.8%, with 5G at 95.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF10 1AB	Cardiff	Broadband coverage is mixed Gigabit availability is 53.3%, with 53.3% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.8% · 5G 95.9% 4G strong-coverage share is 99.8%, with 5G at 95.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF10 1AD	Cardiff	Strong broadband coverage Gigabit availability is 85%, with 85% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.8% · 5G 95.9% 4G strong-coverage share is 99.8%, with 5G at 95.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF10 1AE	Cardiff	Strong broadband coverage Gigabit availability is 96.3%, with 96.3% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.8% · 5G 95.9% 4G strong-coverage share is 99.8%, with 5G at 95.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF10 1AF	Cardiff	Strong broadband coverage Gigabit availability is 96.4%, with 96.4% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.8% · 5G 95.9% 4G strong-coverage share is 99.8%, with 5G at 95.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF10 1AG	Cardiff	Broadband coverage is mixed Gigabit availability is 45.5%, with 45.5% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.8% · 5G 95.9% 4G strong-coverage share is 99.8%, with 5G at 95.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF10 1AH	Cardiff	Broadband coverage is mixed Gigabit availability is 47.1%, with 47.1% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.8% · 5G 95.9% 4G strong-coverage share is 99.8%, with 5G at 95.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF10 1AJ	Cardiff	Strong broadband coverage Gigabit availability is 80%, with 80% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.8% · 5G 95.9% 4G strong-coverage share is 99.8%, with 5G at 95.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF10 1AL	Cardiff	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 95.9% 4G strong-coverage share is 99.8%, with 5G at 95.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF10 1AP	Cardiff	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 95.9% 4G strong-coverage share is 99.8%, with 5G at 95.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF10 1AQ	Cardiff	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 95.9% 4G strong-coverage share is 99.8%, with 5G at 95.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF10 1AR	Cardiff	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 95.9% 4G strong-coverage share is 99.8%, with 5G at 95.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF10 1AT	Cardiff	Strong broadband coverage Gigabit availability is 80%, with 80% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.8% · 5G 95.9% 4G strong-coverage share is 99.8%, with 5G at 95.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF10 1AU	Cardiff	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 95.9% 4G strong-coverage share is 99.8%, with 5G at 95.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF10 1AW	Cardiff	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 95.9% 4G strong-coverage share is 99.8%, with 5G at 95.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF10 1AX	Cardiff	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 95.9% 4G strong-coverage share is 99.8%, with 5G at 95.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF10 1AY	Cardiff	Broadband coverage is mixed Gigabit availability is 57.7%, with 57.7% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.8% · 5G 95.9% 4G strong-coverage share is 99.8%, with 5G at 95.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF10 1AZ	Cardiff	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 95.9% 4G strong-coverage share is 99.8%, with 5G at 95.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF10 1BA	Cardiff	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 95.9% 4G strong-coverage share is 99.8%, with 5G at 95.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF10 1BB	Cardiff	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 95.9% 4G strong-coverage share is 99.8%, with 5G at 95.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF10 1BD	Cardiff	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 95.9% 4G strong-coverage share is 99.8%, with 5G at 95.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF10 1BE	Cardiff	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 95.9% 4G strong-coverage share is 99.8%, with 5G at 95.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF10 1BF	Cardiff	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 95.9% 4G strong-coverage share is 99.8%, with 5G at 95.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF10 1BG	Cardiff	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 95.9% 4G strong-coverage share is 99.8%, with 5G at 95.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF10 1BH	Cardiff	Broadband coverage is mixed Gigabit availability is 18.8%, with 18.8% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.8% · 5G 95.9% 4G strong-coverage share is 99.8%, with 5G at 95.9% 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.