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 SA15. 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
SA15 1AB	Carmarthenshire	Broadband coverage is mixed Gigabit availability is 20%, with 20% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 94.3% 4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SA15 1AF	Carmarthenshire	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 94.3% 4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SA15 1AG	Carmarthenshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 94.3% 4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SA15 1AJ	Carmarthenshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 94.3% 4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SA15 1AL	Carmarthenshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 94.3% 4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SA15 1AN	Carmarthenshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 94.3% 4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SA15 1AP	Carmarthenshire	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 94.3% 4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SA15 1AQ	Carmarthenshire	Broadband coverage is mixed Gigabit availability is 4.3%, with 4.3% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 94.3% 4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SA15 1AR	Carmarthenshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 94.3% 4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SA15 1AS	Carmarthenshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 94.3% 4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SA15 1AT	Carmarthenshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 94.3% 4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SA15 1AU	Carmarthenshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 94.3% 4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SA15 1AW	Carmarthenshire	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 94.3% 4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SA15 1AX	Carmarthenshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 94.3% 4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SA15 1AY	Carmarthenshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 94.3% 4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SA15 1BA	Carmarthenshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 94.3% 4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SA15 1BB	Carmarthenshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 94.3% 4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SA15 1BD	Carmarthenshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 94.3% 4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SA15 1BE	Carmarthenshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 94.3% 4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SA15 1BG	Carmarthenshire	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 94.3% 4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SA15 1BH	Carmarthenshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 94.3% 4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SA15 1BN	Carmarthenshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 94.3% 4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SA15 1BP	Carmarthenshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 94.3% 4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SA15 1BQ	Carmarthenshire	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 94.3% 4G strong-coverage share is 94.3%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SA15 1BR	Carmarthenshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 94.3% 4G strong-coverage share is 94.3%, with 5G at Unavailable 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.