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 DL2. 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
DL2 1AA	Darlington	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 20.1% 4G strong-coverage share is 100%, with 5G at 20.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL2 1AD	Darlington	Strong broadband coverage Gigabit availability is 85%, with 85% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 100% · 5G 20.1% 4G strong-coverage share is 100%, with 5G at 20.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL2 1AF	Darlington	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 20.1% 4G strong-coverage share is 100%, with 5G at 20.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL2 1AG	Darlington	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 20.1% 4G strong-coverage share is 100%, with 5G at 20.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL2 1AH	Darlington	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 20.1% 4G strong-coverage share is 100%, with 5G at 20.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL2 1AJ	Darlington	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 20.1% 4G strong-coverage share is 100%, with 5G at 20.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL2 1AL	Darlington	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 20.1% 4G strong-coverage share is 100%, with 5G at 20.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL2 1AN	Darlington	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 20.1% 4G strong-coverage share is 100%, with 5G at 20.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL2 1AP	Darlington	Broadband coverage is mixed Gigabit availability is 6.3%, with 6.3% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 100% · 5G 20.1% 4G strong-coverage share is 100%, with 5G at 20.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL2 1AQ	Darlington	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 20.1% 4G strong-coverage share is 100%, with 5G at 20.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL2 1AR	Darlington	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 20.1% 4G strong-coverage share is 100%, with 5G at 20.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL2 1AS	Darlington	Strong broadband coverage Gigabit availability is 81.8%, with 81.8% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 100% · 5G 20.1% 4G strong-coverage share is 100%, with 5G at 20.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL2 1AT	Darlington	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 20.1% 4G strong-coverage share is 100%, with 5G at 20.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL2 1AU	Darlington	Strong broadband coverage Gigabit availability is 93.3%, with 93.3% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 100% · 5G 20.1% 4G strong-coverage share is 100%, with 5G at 20.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL2 1AW	Darlington	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 20.1% 4G strong-coverage share is 100%, with 5G at 20.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL2 1AX	Darlington	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 20.1% 4G strong-coverage share is 100%, with 5G at 20.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL2 1AY	Darlington	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 20.1% 4G strong-coverage share is 100%, with 5G at 20.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL2 1AZ	Darlington	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 20.1% 4G strong-coverage share is 100%, with 5G at 20.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL2 1BA	Darlington	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 20.1% 4G strong-coverage share is 100%, with 5G at 20.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL2 1BB	Darlington	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 20.1% 4G strong-coverage share is 100%, with 5G at 20.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL2 1BD	Darlington	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 20.1% 4G strong-coverage share is 100%, with 5G at 20.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL2 1BE	Darlington	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 20.1% 4G strong-coverage share is 100%, with 5G at 20.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL2 1BF	Darlington	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 20.1% 4G strong-coverage share is 100%, with 5G at 20.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL2 1BG	Darlington	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 20.1% 4G strong-coverage share is 100%, with 5G at 20.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL2 1BJ	Darlington	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 20.1% 4G strong-coverage share is 100%, with 5G at 20.1% 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.