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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 SG11. 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
SG11 1AA	East Hertfordshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.5% · 5G 15.8% 4G strong-coverage share is 98.5%, with 5G at 15.8% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG11 1AB	East Hertfordshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.5% · 5G 15.8% 4G strong-coverage share is 98.5%, with 5G at 15.8% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG11 1AD	East Hertfordshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.5% · 5G 15.8% 4G strong-coverage share is 98.5%, with 5G at 15.8% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG11 1AE	East Hertfordshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.5% · 5G 15.8% 4G strong-coverage share is 98.5%, with 5G at 15.8% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG11 1AF	East Hertfordshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.5% · 5G 15.8% 4G strong-coverage share is 98.5%, with 5G at 15.8% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG11 1AH	East Hertfordshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.5% · 5G 15.8% 4G strong-coverage share is 98.5%, with 5G at 15.8% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG11 1AJ	East Hertfordshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.5% · 5G 15.8% 4G strong-coverage share is 98.5%, with 5G at 15.8% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG11 1AL	East Hertfordshire	Below-USO risk present Gigabit availability is 12.5%, with 12.5% of premises at at least 300 Mbps and 12.5% below the Universal Service Obligation.	4G 98.5% · 5G 15.8% 4G strong-coverage share is 98.5%, with 5G at 15.8% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG11 1AN	East Hertfordshire	Broadband coverage is mixed Gigabit availability is 66.7%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.5% · 5G 15.8% 4G strong-coverage share is 98.5%, with 5G at 15.8% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG11 1AP	East Hertfordshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.5% · 5G 15.8% 4G strong-coverage share is 98.5%, with 5G at 15.8% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG11 1AQ	East Hertfordshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.5% · 5G 15.8% 4G strong-coverage share is 98.5%, with 5G at 15.8% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG11 1AR	East Hertfordshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.5% · 5G 15.8% 4G strong-coverage share is 98.5%, with 5G at 15.8% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG11 1AT	East Hertfordshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.5% · 5G 15.8% 4G strong-coverage share is 98.5%, with 5G at 15.8% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG11 1AU	East Hertfordshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.5% · 5G 15.8% 4G strong-coverage share is 98.5%, with 5G at 15.8% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG11 1AW	East Hertfordshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.5% · 5G 15.8% 4G strong-coverage share is 98.5%, with 5G at 15.8% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG11 1AX	East Hertfordshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.5% · 5G 15.8% 4G strong-coverage share is 98.5%, with 5G at 15.8% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG11 1AY	East Hertfordshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.5% · 5G 15.8% 4G strong-coverage share is 98.5%, with 5G at 15.8% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG11 1AZ	East Hertfordshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.5% · 5G 15.8% 4G strong-coverage share is 98.5%, with 5G at 15.8% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG11 1BA	East Hertfordshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.5% · 5G 15.8% 4G strong-coverage share is 98.5%, with 5G at 15.8% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG11 1BB	East Hertfordshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.5% · 5G 15.8% 4G strong-coverage share is 98.5%, with 5G at 15.8% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG11 1BD	East Hertfordshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.5% · 5G 15.8% 4G strong-coverage share is 98.5%, with 5G at 15.8% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG11 1BE	East Hertfordshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.5% · 5G 15.8% 4G strong-coverage share is 98.5%, with 5G at 15.8% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG11 1BG	East Hertfordshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 98.5% · 5G 15.8% 4G strong-coverage share is 98.5%, with 5G at 15.8% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG11 1BH	East Hertfordshire	Strong broadband coverage Gigabit availability is 95.2%, with 95.2% of premises at at least 300 Mbps and 4.8% below the Universal Service Obligation.	4G 98.5% · 5G 15.8% 4G strong-coverage share is 98.5%, with 5G at 15.8% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG11 1BJ	East Hertfordshire	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 98.5% · 5G 15.8% 4G strong-coverage share is 98.5%, with 5G at 15.8% 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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