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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 LL21. 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
LL21 0AA	Denbighshire	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 97.4% 4G strong-coverage share is 97.4%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL21 0AB	Denbighshire	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 97.4% 4G strong-coverage share is 97.4%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL21 0AD	Denbighshire	Broadband coverage is mixed Gigabit availability is 37.5%, with 37.5% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 97.4% 4G strong-coverage share is 97.4%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL21 0AE	Denbighshire	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 97.4% 4G strong-coverage share is 97.4%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL21 0AF	Denbighshire	Partial connectivity coverage No current broadband summary row matched this postcode.	4G 97.4% 4G strong-coverage share is 97.4%, with 5G at Unavailable in the current area-level summary.	Mobile year 2025
LL21 0AG	Denbighshire	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 97.4% 4G strong-coverage share is 97.4%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL21 0AH	Denbighshire	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 97.4% 4G strong-coverage share is 97.4%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL21 0AJ	Denbighshire	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 97.4% 4G strong-coverage share is 97.4%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL21 0AL	Denbighshire	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 97.4% 4G strong-coverage share is 97.4%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL21 0AN	Denbighshire	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 97.4% 4G strong-coverage share is 97.4%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL21 0AP	Denbighshire	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 97.4% 4G strong-coverage share is 97.4%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL21 0AR	Denbighshire	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 97.4% 4G strong-coverage share is 97.4%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL21 0AS	Denbighshire	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 97.4% 4G strong-coverage share is 97.4%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL21 0AT	Denbighshire	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 97.4% 4G strong-coverage share is 97.4%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL21 0AU	Denbighshire	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 97.4% 4G strong-coverage share is 97.4%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL21 0AY	Denbighshire	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 97.4% 4G strong-coverage share is 97.4%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL21 0BA	Denbighshire	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 97.4% 4G strong-coverage share is 97.4%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL21 0BB	Denbighshire	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 97.4% 4G strong-coverage share is 97.4%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL21 0BD	Denbighshire	Broadband coverage is mixed Gigabit availability is 73.3%, with 73.3% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 97.4% 4G strong-coverage share is 97.4%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL21 0BE	Denbighshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 97.4% 4G strong-coverage share is 97.4%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL21 0BG	Denbighshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 97.4% 4G strong-coverage share is 97.4%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL21 0BH	Denbighshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 97.4% 4G strong-coverage share is 97.4%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL21 0BL	Denbighshire	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 97.4% 4G strong-coverage share is 97.4%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL21 0BN	Denbighshire	Strong broadband coverage Gigabit availability is 83.3%, with 83.3% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 97.4% 4G strong-coverage share is 97.4%, with 5G at Unavailable in the current area-level summary.	Broadband year 2024 · Mobile year 2025
LL21 0BP	Denbighshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 97.4% 4G strong-coverage share is 97.4%, 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.

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