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 B21. 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
B21 0AB	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
B21 0AF	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
B21 0AL	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
B21 0AP	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
B21 0AQ	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
B21 0AR	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
B21 0AS	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
B21 0AT	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
B21 0AU	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
B21 0AW	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
B21 0AX	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
B21 0AY	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
B21 0BA	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
B21 0BB	Birmingham	Strong broadband coverage Gigabit availability is 94.4%, with 94.4% of premises at at least 300 Mbps and 5.7% 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
B21 0BD	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
B21 0BE	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
B21 0BH	Birmingham	Strong broadband coverage Gigabit availability is 94.1%, with 94.1% 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
B21 0BJ	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
B21 0BN	Birmingham	Broadband coverage is mixed Gigabit availability is 10%, with 10% 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
B21 0BQ	Birmingham	Partial connectivity coverage No current broadband summary row matched this postcode.	4G 100% · 5G 96.1% 4G strong-coverage share is 100%, with 5G at 96.1% in the current area-level summary.	Mobile year 2025
B21 0BS	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
B21 0DA	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
B21 0DB	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
B21 0DD	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
B21 0DE	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.