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 B3. 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
B3 1AG	Birmingham	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 96.1% 4G strong-coverage share is 100%, with 5G at 96.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
B3 1AQ	Birmingham	Broadband coverage is mixed Gigabit availability is 22.2%, with 22.2% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 100% · 5G 96.1% 4G strong-coverage share is 100%, with 5G at 96.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
B3 1AT	Birmingham	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 96.1% 4G strong-coverage share is 100%, with 5G at 96.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
B3 1BA	Birmingham	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 96.1% 4G strong-coverage share is 100%, with 5G at 96.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
B3 1BG	Birmingham	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 96.1% 4G strong-coverage share is 100%, with 5G at 96.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
B3 1BJ	Birmingham	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 96.1% 4G strong-coverage share is 100%, with 5G at 96.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
B3 1BP	Birmingham	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 96.1% 4G strong-coverage share is 100%, with 5G at 96.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
B3 1BU	Birmingham	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 96.1% 4G strong-coverage share is 100%, with 5G at 96.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
B3 1BY	Birmingham	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 96.1% 4G strong-coverage share is 100%, with 5G at 96.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
B3 1DA	Birmingham	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 96.1% 4G strong-coverage share is 100%, with 5G at 96.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
B3 1DB	Birmingham	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 96.1% 4G strong-coverage share is 100%, with 5G at 96.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
B3 1DD	Birmingham	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 96.1% 4G strong-coverage share is 100%, with 5G at 96.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
B3 1DE	Birmingham	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 96.1% 4G strong-coverage share is 100%, with 5G at 96.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
B3 1DG	Birmingham	Broadband coverage is mixed Gigabit availability is 50%, with 50% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 100% · 5G 96.1% 4G strong-coverage share is 100%, with 5G at 96.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
B3 1DR	Birmingham	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 96.1% 4G strong-coverage share is 100%, with 5G at 96.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
B3 1DS	Birmingham	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 96.1% 4G strong-coverage share is 100%, with 5G at 96.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
B3 1DW	Birmingham	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 96.1% 4G strong-coverage share is 100%, with 5G at 96.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
B3 1DX	Birmingham	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 96.1% 4G strong-coverage share is 100%, with 5G at 96.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
B3 1EB	Birmingham	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 96.1% 4G strong-coverage share is 100%, with 5G at 96.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
B3 1EE	Birmingham	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 96.1% 4G strong-coverage share is 100%, with 5G at 96.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
B3 1EF	Birmingham	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 96.1% 4G strong-coverage share is 100%, with 5G at 96.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
B3 1EH	Birmingham	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 96.1% 4G strong-coverage share is 100%, with 5G at 96.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
B3 1EJ	Birmingham	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 96.1% 4G strong-coverage share is 100%, with 5G at 96.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
B3 1EN	Birmingham	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 96.1% 4G strong-coverage share is 100%, with 5G at 96.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
B3 1EP	Birmingham	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 96.1% 4G strong-coverage share is 100%, with 5G at 96.1% 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.