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 HP23. 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
HP23 4AB	Dacorum	Broadband coverage is mixed Gigabit availability is 38.2%, with 38.2% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.6% · 5G 51.6% 4G strong-coverage share is 99.6%, with 5G at 51.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
HP23 4AF	Dacorum	Broadband coverage is mixed Gigabit availability is 40.7%, with 40.7% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.6% · 5G 51.6% 4G strong-coverage share is 99.6%, with 5G at 51.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
HP23 4AG	Dacorum	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 99.6% · 5G 51.6% 4G strong-coverage share is 99.6%, with 5G at 51.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
HP23 4AJ	Dacorum	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 99.6% · 5G 51.6% 4G strong-coverage share is 99.6%, with 5G at 51.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
HP23 4AL	Dacorum	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 99.6% · 5G 51.6% 4G strong-coverage share is 99.6%, with 5G at 51.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
HP23 4AN	Dacorum	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 99.6% · 5G 51.6% 4G strong-coverage share is 99.6%, with 5G at 51.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
HP23 4AP	Dacorum	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.6% · 5G 51.6% 4G strong-coverage share is 99.6%, with 5G at 51.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
HP23 4AR	Dacorum	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.6% · 5G 51.6% 4G strong-coverage share is 99.6%, with 5G at 51.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
HP23 4AS	Dacorum	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.6% · 5G 51.6% 4G strong-coverage share is 99.6%, with 5G at 51.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
HP23 4AT	Dacorum	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.6% · 5G 51.6% 4G strong-coverage share is 99.6%, with 5G at 51.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
HP23 4AU	Dacorum	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.6% · 5G 51.6% 4G strong-coverage share is 99.6%, with 5G at 51.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
HP23 4AW	Dacorum	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.6% · 5G 51.6% 4G strong-coverage share is 99.6%, with 5G at 51.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
HP23 4AX	Dacorum	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.6% · 5G 51.6% 4G strong-coverage share is 99.6%, with 5G at 51.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
HP23 4AY	Dacorum	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.6% · 5G 51.6% 4G strong-coverage share is 99.6%, with 5G at 51.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
HP23 4AZ	Dacorum	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.6% · 5G 51.6% 4G strong-coverage share is 99.6%, with 5G at 51.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
HP23 4BA	Dacorum	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.6% · 5G 51.6% 4G strong-coverage share is 99.6%, with 5G at 51.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
HP23 4BB	Dacorum	Broadband coverage is mixed Gigabit availability is 39.3%, with 39.3% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.6% · 5G 51.6% 4G strong-coverage share is 99.6%, with 5G at 51.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
HP23 4BE	Dacorum	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.6% · 5G 51.6% 4G strong-coverage share is 99.6%, with 5G at 51.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
HP23 4BF	Dacorum	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.6% · 5G 51.6% 4G strong-coverage share is 99.6%, with 5G at 51.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
HP23 4BH	Dacorum	Strong broadband coverage Gigabit availability is 90%, with 90% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.6% · 5G 51.6% 4G strong-coverage share is 99.6%, with 5G at 51.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
HP23 4BJ	Dacorum	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 99.6% · 5G 51.6% 4G strong-coverage share is 99.6%, with 5G at 51.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
HP23 4BN	Dacorum	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.6% · 5G 51.6% 4G strong-coverage share is 99.6%, with 5G at 51.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
HP23 4BQ	Dacorum	Strong broadband coverage Gigabit availability is 88.9%, with 88.9% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.6% · 5G 51.6% 4G strong-coverage share is 99.6%, with 5G at 51.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
HP23 4BS	Dacorum	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 99.6% · 5G 51.6% 4G strong-coverage share is 99.6%, with 5G at 51.6% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
HP23 4BT	Dacorum	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.6% · 5G 51.6% 4G strong-coverage share is 99.6%, with 5G at 51.6% 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.