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 CF42. 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
CF42 5AA	Rhondda Cynon Taf	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 96.2% · 5G 0.7% 4G strong-coverage share is 96.2%, with 5G at 0.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF42 5AB	Rhondda Cynon Taf	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 96.2% · 5G 0.7% 4G strong-coverage share is 96.2%, with 5G at 0.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF42 5AD	Rhondda Cynon Taf	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 96.2% · 5G 0.7% 4G strong-coverage share is 96.2%, with 5G at 0.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF42 5AE	Rhondda Cynon Taf	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 96.2% · 5G 0.7% 4G strong-coverage share is 96.2%, with 5G at 0.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF42 5AF	Rhondda Cynon Taf	Broadband coverage is mixed Gigabit availability is 70%, with 70% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 96.2% · 5G 0.7% 4G strong-coverage share is 96.2%, with 5G at 0.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF42 5AG	Rhondda Cynon Taf	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 96.2% · 5G 0.7% 4G strong-coverage share is 96.2%, with 5G at 0.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF42 5AH	Rhondda Cynon Taf	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 96.2% · 5G 0.7% 4G strong-coverage share is 96.2%, with 5G at 0.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF42 5AL	Rhondda Cynon Taf	Broadband coverage is mixed Gigabit availability is 52.9%, with 52.9% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 96.2% · 5G 0.7% 4G strong-coverage share is 96.2%, with 5G at 0.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF42 5AP	Rhondda Cynon Taf	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 96.2% · 5G 0.7% 4G strong-coverage share is 96.2%, with 5G at 0.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF42 5AQ	Rhondda Cynon Taf	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 96.2% · 5G 0.7% 4G strong-coverage share is 96.2%, with 5G at 0.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF42 5AR	Rhondda Cynon Taf	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 96.2% · 5G 0.7% 4G strong-coverage share is 96.2%, with 5G at 0.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF42 5AS	Rhondda Cynon Taf	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 96.2% · 5G 0.7% 4G strong-coverage share is 96.2%, with 5G at 0.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF42 5AT	Rhondda Cynon Taf	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 96.2% · 5G 0.7% 4G strong-coverage share is 96.2%, with 5G at 0.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF42 5AU	Rhondda Cynon Taf	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 96.2% · 5G 0.7% 4G strong-coverage share is 96.2%, with 5G at 0.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF42 5AW	Rhondda Cynon Taf	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 96.2% · 5G 0.7% 4G strong-coverage share is 96.2%, with 5G at 0.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF42 5AX	Rhondda Cynon Taf	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 96.2% · 5G 0.7% 4G strong-coverage share is 96.2%, with 5G at 0.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF42 5AY	Rhondda Cynon Taf	Partial connectivity coverage No current broadband summary row matched this postcode.	4G 96.2% · 5G 0.7% 4G strong-coverage share is 96.2%, with 5G at 0.7% in the current area-level summary.	Mobile year 2025
CF42 5BA	Rhondda Cynon Taf	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 96.2% · 5G 0.7% 4G strong-coverage share is 96.2%, with 5G at 0.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF42 5BE	Rhondda Cynon Taf	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 96.2% · 5G 0.7% 4G strong-coverage share is 96.2%, with 5G at 0.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF42 5BG	Rhondda Cynon Taf	Broadband coverage is mixed Gigabit availability is 64.4%, with 64.4% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 96.2% · 5G 0.7% 4G strong-coverage share is 96.2%, with 5G at 0.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF42 5BH	Rhondda Cynon Taf	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 96.2% · 5G 0.7% 4G strong-coverage share is 96.2%, with 5G at 0.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF42 5BL	Rhondda Cynon Taf	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 96.2% · 5G 0.7% 4G strong-coverage share is 96.2%, with 5G at 0.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF42 5BN	Rhondda Cynon Taf	Strong broadband coverage Gigabit availability is 97.6%, with 97.6% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 96.2% · 5G 0.7% 4G strong-coverage share is 96.2%, with 5G at 0.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF42 5BP	Rhondda Cynon Taf	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 96.2% · 5G 0.7% 4G strong-coverage share is 96.2%, with 5G at 0.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CF42 5BS	Rhondda Cynon Taf	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 96.2% · 5G 0.7% 4G strong-coverage share is 96.2%, with 5G at 0.7% 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.