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 WD18. 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
WD18 0AA	Watford	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 100% · 5G 96.3% 4G strong-coverage share is 100%, with 5G at 96.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
WD18 0AD	Watford	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 100% · 5G 96.3% 4G strong-coverage share is 100%, with 5G at 96.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
WD18 0AE	Watford	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 100% · 5G 96.3% 4G strong-coverage share is 100%, with 5G at 96.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
WD18 0AF	Watford	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 100% · 5G 96.3% 4G strong-coverage share is 100%, with 5G at 96.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
WD18 0AG	Watford	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 100% · 5G 96.3% 4G strong-coverage share is 100%, with 5G at 96.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
WD18 0AH	Watford	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 100% · 5G 96.3% 4G strong-coverage share is 100%, with 5G at 96.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
WD18 0AJ	Watford	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 100% · 5G 96.3% 4G strong-coverage share is 100%, with 5G at 96.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
WD18 0AL	Watford	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 100% · 5G 96.3% 4G strong-coverage share is 100%, with 5G at 96.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
WD18 0AQ	Watford	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 100% · 5G 96.3% 4G strong-coverage share is 100%, with 5G at 96.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
WD18 0AT	Watford	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 100% · 5G 96.3% 4G strong-coverage share is 100%, with 5G at 96.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
WD18 0AU	Watford	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 100% · 5G 96.3% 4G strong-coverage share is 100%, with 5G at 96.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
WD18 0AX	Watford	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 100% · 5G 96.3% 4G strong-coverage share is 100%, with 5G at 96.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
WD18 0AY	Watford	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 100% · 5G 96.3% 4G strong-coverage share is 100%, with 5G at 96.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
WD18 0AZ	Watford	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 100% · 5G 96.3% 4G strong-coverage share is 100%, with 5G at 96.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
WD18 0BA	Watford	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 100% · 5G 96.3% 4G strong-coverage share is 100%, with 5G at 96.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
WD18 0BB	Watford	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 100% · 5G 96.3% 4G strong-coverage share is 100%, with 5G at 96.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
WD18 0BD	Watford	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 100% · 5G 96.3% 4G strong-coverage share is 100%, with 5G at 96.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
WD18 0BE	Watford	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 100% · 5G 96.3% 4G strong-coverage share is 100%, with 5G at 96.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
WD18 0BF	Watford	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 100% · 5G 96.3% 4G strong-coverage share is 100%, with 5G at 96.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
WD18 0BG	Watford	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 100% · 5G 96.3% 4G strong-coverage share is 100%, with 5G at 96.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
WD18 0BH	Watford	Broadband coverage is mixed Gigabit availability is 70.8%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 100% · 5G 96.3% 4G strong-coverage share is 100%, with 5G at 96.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
WD18 0BJ	Watford	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 100% · 5G 96.3% 4G strong-coverage share is 100%, with 5G at 96.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
WD18 0BN	Watford	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 100% · 5G 96.3% 4G strong-coverage share is 100%, with 5G at 96.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
WD18 0BP	Watford	Broadband coverage is mixed Gigabit availability is 0%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 100% · 5G 96.3% 4G strong-coverage share is 100%, with 5G at 96.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
WD18 0BQ	Watford	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 100% · 5G 96.3% 4G strong-coverage share is 100%, with 5G at 96.3% 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.