Tools

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 CB23. 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
CB23 1AA	South Cambridgeshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.3% · 5G 11.1% 4G strong-coverage share is 99.3%, with 5G at 11.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CB23 1AB	South Cambridgeshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.3% · 5G 11.1% 4G strong-coverage share is 99.3%, with 5G at 11.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CB23 1AD	South Cambridgeshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.3% · 5G 11.1% 4G strong-coverage share is 99.3%, with 5G at 11.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CB23 1AE	South Cambridgeshire	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 99.3% · 5G 11.1% 4G strong-coverage share is 99.3%, with 5G at 11.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CB23 1AF	South Cambridgeshire	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 99.3% · 5G 11.1% 4G strong-coverage share is 99.3%, with 5G at 11.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CB23 1AG	South Cambridgeshire	Partial connectivity coverage No current broadband summary row matched this postcode.	4G 99.3% · 5G 11.1% 4G strong-coverage share is 99.3%, with 5G at 11.1% in the current area-level summary.	Mobile year 2025
CB23 1EN	South Cambridgeshire	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 99.3% · 5G 11.1% 4G strong-coverage share is 99.3%, with 5G at 11.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CB23 1ER	South Cambridgeshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.3% · 5G 11.1% 4G strong-coverage share is 99.3%, with 5G at 11.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CB23 1ES	South Cambridgeshire	Strong broadband coverage Gigabit availability is 89.1%, with 89.1% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.3% · 5G 11.1% 4G strong-coverage share is 99.3%, with 5G at 11.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CB23 1ET	South Cambridgeshire	Broadband coverage is mixed Gigabit availability is 33.3%, with 33.3% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.3% · 5G 11.1% 4G strong-coverage share is 99.3%, with 5G at 11.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CB23 1EU	South Cambridgeshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.3% · 5G 11.1% 4G strong-coverage share is 99.3%, with 5G at 11.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CB23 1EW	South Cambridgeshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.3% · 5G 11.1% 4G strong-coverage share is 99.3%, with 5G at 11.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CB23 1EX	South Cambridgeshire	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 99.3% · 5G 11.1% 4G strong-coverage share is 99.3%, with 5G at 11.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CB23 1EY	South Cambridgeshire	Broadband coverage is mixed Gigabit availability is 33.3%, with 33.3% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.3% · 5G 11.1% 4G strong-coverage share is 99.3%, with 5G at 11.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CB23 1EZ	South Cambridgeshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.3% · 5G 11.1% 4G strong-coverage share is 99.3%, with 5G at 11.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CB23 1GL	South Cambridgeshire	Partial connectivity coverage No current broadband summary row matched this postcode.	4G 99.3% · 5G 11.1% 4G strong-coverage share is 99.3%, with 5G at 11.1% in the current area-level summary.	Mobile year 2025
CB23 1HA	South Cambridgeshire	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 99.3% · 5G 11.1% 4G strong-coverage share is 99.3%, with 5G at 11.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CB23 1HB	South Cambridgeshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.3% · 5G 11.1% 4G strong-coverage share is 99.3%, with 5G at 11.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CB23 1HD	South Cambridgeshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.3% · 5G 11.1% 4G strong-coverage share is 99.3%, with 5G at 11.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CB23 1HE	South Cambridgeshire	Strong broadband coverage Gigabit availability is 97.7%, with 97.7% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.3% · 5G 11.1% 4G strong-coverage share is 99.3%, with 5G at 11.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CB23 1HF	South Cambridgeshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.3% · 5G 11.1% 4G strong-coverage share is 99.3%, with 5G at 11.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CB23 1HG	South Cambridgeshire	Strong broadband coverage Gigabit availability is 95%, with 95% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.3% · 5G 11.1% 4G strong-coverage share is 99.3%, with 5G at 11.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CB23 1HH	South Cambridgeshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.3% · 5G 11.1% 4G strong-coverage share is 99.3%, with 5G at 11.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CB23 1HJ	South Cambridgeshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.3% · 5G 11.1% 4G strong-coverage share is 99.3%, with 5G at 11.1% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CB23 1HL	South Cambridgeshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.3% · 5G 11.1% 4G strong-coverage share is 99.3%, with 5G at 11.1% 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.

Broadband and mobile checker

Research

Plan and learn

Support