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 SG5. 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
SG5 1AB	North 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 99.6% · 5G 17.7% 4G strong-coverage share is 99.6%, with 5G at 17.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG5 1AD	North 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 99.6% · 5G 17.7% 4G strong-coverage share is 99.6%, with 5G at 17.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG5 1AE	North Hertfordshire	Strong broadband coverage Gigabit availability is 80%, with 80% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.6% · 5G 17.7% 4G strong-coverage share is 99.6%, with 5G at 17.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG5 1AF	North 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 99.6% · 5G 17.7% 4G strong-coverage share is 99.6%, with 5G at 17.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG5 1AG	North 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 99.6% · 5G 17.7% 4G strong-coverage share is 99.6%, with 5G at 17.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG5 1AH	North 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 99.6% · 5G 17.7% 4G strong-coverage share is 99.6%, with 5G at 17.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG5 1AP	North 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 99.6% · 5G 17.7% 4G strong-coverage share is 99.6%, with 5G at 17.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG5 1AR	North 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 99.6% · 5G 17.7% 4G strong-coverage share is 99.6%, with 5G at 17.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG5 1AT	North 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 99.6% · 5G 17.7% 4G strong-coverage share is 99.6%, with 5G at 17.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG5 1AU	North Hertfordshire	Broadband coverage is mixed Gigabit availability is 10.7%, with 10.7% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.6% · 5G 17.7% 4G strong-coverage share is 99.6%, with 5G at 17.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG5 1AZ	North 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 99.6% · 5G 17.7% 4G strong-coverage share is 99.6%, with 5G at 17.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG5 1BB	North Hertfordshire	Broadband coverage is mixed Gigabit availability is 42.9%, with 42.9% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.6% · 5G 17.7% 4G strong-coverage share is 99.6%, with 5G at 17.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG5 1BG	North Hertfordshire	Broadband coverage is mixed Gigabit availability is 48.1%, with 48.1% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.6% · 5G 17.7% 4G strong-coverage share is 99.6%, with 5G at 17.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG5 1BH	North 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 99.6% · 5G 17.7% 4G strong-coverage share is 99.6%, with 5G at 17.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG5 1BQ	North 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 99.6% · 5G 17.7% 4G strong-coverage share is 99.6%, with 5G at 17.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG5 1BS	North 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 99.6% · 5G 17.7% 4G strong-coverage share is 99.6%, with 5G at 17.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG5 1BT	North 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 99.6% · 5G 17.7% 4G strong-coverage share is 99.6%, with 5G at 17.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG5 1BY	North 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 99.6% · 5G 17.7% 4G strong-coverage share is 99.6%, with 5G at 17.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG5 1DA	North 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 99.6% · 5G 17.7% 4G strong-coverage share is 99.6%, with 5G at 17.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG5 1DB	North 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 99.6% · 5G 17.7% 4G strong-coverage share is 99.6%, with 5G at 17.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG5 1DG	North Hertfordshire	Strong broadband coverage Gigabit availability is 91.9%, with 91.9% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.6% · 5G 17.7% 4G strong-coverage share is 99.6%, with 5G at 17.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG5 1DJ	North Hertfordshire	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 99.6% · 5G 17.7% 4G strong-coverage share is 99.6%, with 5G at 17.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG5 1DL	North 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 99.6% · 5G 17.7% 4G strong-coverage share is 99.6%, with 5G at 17.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG5 1DN	North Hertfordshire	Broadband coverage is mixed Gigabit availability is 18.5%, with 18.5% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.6% · 5G 17.7% 4G strong-coverage share is 99.6%, with 5G at 17.7% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
SG5 1DR	North Hertfordshire	Strong broadband coverage Gigabit availability is 75%, with 75% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.6% · 5G 17.7% 4G strong-coverage share is 99.6%, with 5G at 17.7% 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.