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 DL12. 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
DL12 0AA	County Durham	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.7% · 5G 13.4% 4G strong-coverage share is 98.7%, with 5G at 13.4% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL12 0AB	County Durham	Strong broadband coverage Gigabit availability is 75%, with 75% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.7% · 5G 13.4% 4G strong-coverage share is 98.7%, with 5G at 13.4% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL12 0AD	County Durham	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 98.7% · 5G 13.4% 4G strong-coverage share is 98.7%, with 5G at 13.4% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL12 0AE	County Durham	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 98.7% · 5G 13.4% 4G strong-coverage share is 98.7%, with 5G at 13.4% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL12 0AF	County Durham	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 98.7% · 5G 13.4% 4G strong-coverage share is 98.7%, with 5G at 13.4% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL12 0AG	County Durham	Broadband coverage is mixed Gigabit availability is 55.6%, with 55.6% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.7% · 5G 13.4% 4G strong-coverage share is 98.7%, with 5G at 13.4% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL12 0AH	County Durham	Broadband coverage is mixed Gigabit availability is 18.5%, with 18.5% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.7% · 5G 13.4% 4G strong-coverage share is 98.7%, with 5G at 13.4% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL12 0AJ	County Durham	Strong broadband coverage Gigabit availability is 75%, with 75% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.7% · 5G 13.4% 4G strong-coverage share is 98.7%, with 5G at 13.4% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL12 0AL	County Durham	Broadband coverage is mixed Gigabit availability is 42.9%, with 42.9% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.7% · 5G 13.4% 4G strong-coverage share is 98.7%, with 5G at 13.4% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL12 0AN	County Durham	Broadband coverage is mixed Gigabit availability is 66.7%, with 66.7% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.7% · 5G 13.4% 4G strong-coverage share is 98.7%, with 5G at 13.4% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL12 0AP	County Durham	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 98.7% · 5G 13.4% 4G strong-coverage share is 98.7%, with 5G at 13.4% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL12 0AQ	County Durham	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.7% · 5G 13.4% 4G strong-coverage share is 98.7%, with 5G at 13.4% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL12 0AR	County Durham	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.7% · 5G 13.4% 4G strong-coverage share is 98.7%, with 5G at 13.4% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL12 0AS	County Durham	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.7% · 5G 13.4% 4G strong-coverage share is 98.7%, with 5G at 13.4% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL12 0AT	County Durham	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 98.7% · 5G 13.4% 4G strong-coverage share is 98.7%, with 5G at 13.4% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL12 0AU	County Durham	Strong broadband coverage Gigabit availability is 87%, with 87% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.7% · 5G 13.4% 4G strong-coverage share is 98.7%, with 5G at 13.4% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL12 0AW	County Durham	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.7% · 5G 13.4% 4G strong-coverage share is 98.7%, with 5G at 13.4% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL12 0AX	County Durham	Broadband coverage is mixed Gigabit availability is 25%, with 25% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.7% · 5G 13.4% 4G strong-coverage share is 98.7%, with 5G at 13.4% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL12 0AY	County Durham	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 98.7% · 5G 13.4% 4G strong-coverage share is 98.7%, with 5G at 13.4% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL12 0AZ	County Durham	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 98.7% · 5G 13.4% 4G strong-coverage share is 98.7%, with 5G at 13.4% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL12 0BA	County Durham	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 98.7% · 5G 13.4% 4G strong-coverage share is 98.7%, with 5G at 13.4% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL12 0BB	County Durham	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 98.7% · 5G 13.4% 4G strong-coverage share is 98.7%, with 5G at 13.4% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL12 0BD	County Durham	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 98.7% · 5G 13.4% 4G strong-coverage share is 98.7%, with 5G at 13.4% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL12 0BE	County Durham	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.7% · 5G 13.4% 4G strong-coverage share is 98.7%, with 5G at 13.4% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
DL12 0BF	County Durham	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 98.7% · 5G 13.4% 4G strong-coverage share is 98.7%, with 5G at 13.4% 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.