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 CM77. 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
CM77 6AA	Braintree	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.9% · 5G 1.3% 4G strong-coverage share is 98.9%, with 5G at 1.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM77 6AB	Braintree	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.9% · 5G 1.3% 4G strong-coverage share is 98.9%, with 5G at 1.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM77 6AD	Braintree	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.9% · 5G 1.3% 4G strong-coverage share is 98.9%, with 5G at 1.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM77 6AE	Braintree	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.9% · 5G 1.3% 4G strong-coverage share is 98.9%, with 5G at 1.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM77 6AF	Braintree	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.9% · 5G 1.3% 4G strong-coverage share is 98.9%, with 5G at 1.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM77 6AG	Braintree	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.9% · 5G 1.3% 4G strong-coverage share is 98.9%, with 5G at 1.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM77 6BA	Braintree	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.9% · 5G 1.3% 4G strong-coverage share is 98.9%, with 5G at 1.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM77 6BS	Braintree	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.9% · 5G 1.3% 4G strong-coverage share is 98.9%, with 5G at 1.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM77 6BT	Braintree	Strong broadband coverage Gigabit availability is 93.8%, with 93.8% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.9% · 5G 1.3% 4G strong-coverage share is 98.9%, with 5G at 1.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM77 6BU	Braintree	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.9% · 5G 1.3% 4G strong-coverage share is 98.9%, with 5G at 1.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM77 6BW	Braintree	Partial connectivity coverage No current broadband summary row matched this postcode.	4G 98.9% · 5G 1.3% 4G strong-coverage share is 98.9%, with 5G at 1.3% in the current area-level summary.	Mobile year 2025
CM77 6BX	Braintree	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.9% · 5G 1.3% 4G strong-coverage share is 98.9%, with 5G at 1.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM77 6BY	Braintree	Strong broadband coverage Gigabit availability is 97.9%, with 97.9% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.9% · 5G 1.3% 4G strong-coverage share is 98.9%, with 5G at 1.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM77 6BZ	Braintree	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.9% · 5G 1.3% 4G strong-coverage share is 98.9%, with 5G at 1.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM77 6DA	Braintree	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.9% · 5G 1.3% 4G strong-coverage share is 98.9%, with 5G at 1.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM77 6DB	Braintree	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.9% · 5G 1.3% 4G strong-coverage share is 98.9%, with 5G at 1.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM77 6DD	Braintree	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.9% · 5G 1.3% 4G strong-coverage share is 98.9%, with 5G at 1.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM77 6DE	Braintree	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.9% · 5G 1.3% 4G strong-coverage share is 98.9%, with 5G at 1.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM77 6DF	Braintree	Strong broadband coverage Gigabit availability is 87.5%, with 87.5% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.9% · 5G 1.3% 4G strong-coverage share is 98.9%, with 5G at 1.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM77 6DG	Braintree	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.9% · 5G 1.3% 4G strong-coverage share is 98.9%, with 5G at 1.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM77 6DH	Braintree	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.9% · 5G 1.3% 4G strong-coverage share is 98.9%, with 5G at 1.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM77 6DJ	Braintree	Broadband coverage is mixed Gigabit availability is 60%, with 60% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.9% · 5G 1.3% 4G strong-coverage share is 98.9%, with 5G at 1.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM77 6DL	Braintree	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 98.9% · 5G 1.3% 4G strong-coverage share is 98.9%, with 5G at 1.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM77 6DN	Braintree	Below-USO risk present Gigabit availability is 0%, with 0% of premises at at least 300 Mbps and 100% below the Universal Service Obligation.	4G 98.9% · 5G 1.3% 4G strong-coverage share is 98.9%, with 5G at 1.3% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM77 6DP	Braintree	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.9% · 5G 1.3% 4G strong-coverage share is 98.9%, with 5G at 1.3% 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.