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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 CM6. 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
CM6 1AB	Uttlesford	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 97% · 5G 0.5% 4G strong-coverage share is 97%, with 5G at 0.5% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM6 1AD	Uttlesford	Partial connectivity coverage No current broadband summary row matched this postcode.	4G 97% · 5G 0.5% 4G strong-coverage share is 97%, with 5G at 0.5% in the current area-level summary.	Mobile year 2025
CM6 1AE	Uttlesford	Strong broadband coverage Gigabit availability is 80%, with 80% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 97% · 5G 0.5% 4G strong-coverage share is 97%, with 5G at 0.5% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM6 1AF	Uttlesford	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 97% · 5G 0.5% 4G strong-coverage share is 97%, with 5G at 0.5% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM6 1AG	Uttlesford	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 97% · 5G 0.5% 4G strong-coverage share is 97%, with 5G at 0.5% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM6 1AH	Uttlesford	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 97% · 5G 0.5% 4G strong-coverage share is 97%, with 5G at 0.5% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM6 1AJ	Uttlesford	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 97% · 5G 0.5% 4G strong-coverage share is 97%, with 5G at 0.5% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM6 1AN	Uttlesford	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 97% · 5G 0.5% 4G strong-coverage share is 97%, with 5G at 0.5% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM6 1AP	Uttlesford	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 97% · 5G 0.5% 4G strong-coverage share is 97%, with 5G at 0.5% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM6 1AQ	Uttlesford	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 97% · 5G 0.5% 4G strong-coverage share is 97%, with 5G at 0.5% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM6 1AR	Uttlesford	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 97% · 5G 0.5% 4G strong-coverage share is 97%, with 5G at 0.5% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM6 1AS	Uttlesford	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 97% · 5G 0.5% 4G strong-coverage share is 97%, with 5G at 0.5% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM6 1AT	Uttlesford	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 97% · 5G 0.5% 4G strong-coverage share is 97%, with 5G at 0.5% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM6 1AW	Uttlesford	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 97% · 5G 0.5% 4G strong-coverage share is 97%, with 5G at 0.5% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM6 1AX	Uttlesford	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 97% · 5G 0.5% 4G strong-coverage share is 97%, with 5G at 0.5% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM6 1AY	Uttlesford	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 97% · 5G 0.5% 4G strong-coverage share is 97%, with 5G at 0.5% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM6 1AZ	Uttlesford	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 97% · 5G 0.5% 4G strong-coverage share is 97%, with 5G at 0.5% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM6 1BA	Uttlesford	Strong broadband coverage Gigabit availability is 91.7%, with 91.7% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 97% · 5G 0.5% 4G strong-coverage share is 97%, with 5G at 0.5% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM6 1BB	Uttlesford	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 97% · 5G 0.5% 4G strong-coverage share is 97%, with 5G at 0.5% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM6 1BD	Uttlesford	Broadband coverage is mixed Gigabit availability is 5%, with 5% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 97% · 5G 0.5% 4G strong-coverage share is 97%, with 5G at 0.5% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM6 1BE	Uttlesford	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 97% · 5G 0.5% 4G strong-coverage share is 97%, with 5G at 0.5% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM6 1BG	Uttlesford	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 97% · 5G 0.5% 4G strong-coverage share is 97%, with 5G at 0.5% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM6 1BH	Uttlesford	Strong broadband coverage Gigabit availability is 76%, with 76% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 97% · 5G 0.5% 4G strong-coverage share is 97%, with 5G at 0.5% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM6 1BJ	Uttlesford	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 97% · 5G 0.5% 4G strong-coverage share is 97%, with 5G at 0.5% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
CM6 1BL	Uttlesford	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 97% · 5G 0.5% 4G strong-coverage share is 97%, with 5G at 0.5% 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.

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