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 LL48. 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
LL48 6AA	Gwynedd	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 93.8% 4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL48 6AB	Gwynedd	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 93.8% 4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL48 6AD	Gwynedd	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 93.8% 4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL48 6AE	Gwynedd	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 93.8% 4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL48 6AG	Gwynedd	Broadband coverage is mixed Gigabit availability is 8.3%, with 8.3% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 93.8% 4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL48 6AH	Gwynedd	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 93.8% 4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL48 6AJ	Gwynedd	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 93.8% 4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL48 6AL	Gwynedd	Broadband coverage is mixed Gigabit availability is 5.7%, with 5.7% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 93.8% 4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL48 6AN	Gwynedd	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 93.8% 4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL48 6AP	Gwynedd	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 93.8% 4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL48 6AQ	Gwynedd	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 93.8% 4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL48 6AR	Gwynedd	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 93.8% 4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL48 6AS	Gwynedd	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 93.8% 4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL48 6AT	Gwynedd	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 93.8% 4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL48 6AU	Gwynedd	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 93.8% 4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL48 6AW	Gwynedd	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 93.8% 4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL48 6AX	Gwynedd	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 93.8% 4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL48 6AY	Gwynedd	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 93.8% 4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL48 6AZ	Gwynedd	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 93.8% 4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL48 6BA	Gwynedd	Broadband coverage is mixed Gigabit availability is 21.1%, with 21.1% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 93.8% 4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL48 6BB	Gwynedd	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 93.8% 4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL48 6BD	Gwynedd	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 93.8% 4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL48 6BE	Gwynedd	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 93.8% 4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL48 6BF	Gwynedd	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 93.8% 4G strong-coverage share is 93.8%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL48 6BG	Gwynedd	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 93.8% 4G strong-coverage share is 93.8%, 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.