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 NN18. 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
NN18 0AB	North Northamptonshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.1% · 5G 38.9% 4G strong-coverage share is 99.1%, with 5G at 38.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NN18 0AD	North Northamptonshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.1% · 5G 38.9% 4G strong-coverage share is 99.1%, with 5G at 38.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NN18 0AE	North Northamptonshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.1% · 5G 38.9% 4G strong-coverage share is 99.1%, with 5G at 38.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NN18 0AF	North Northamptonshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.1% · 5G 38.9% 4G strong-coverage share is 99.1%, with 5G at 38.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NN18 0AG	North Northamptonshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.1% · 5G 38.9% 4G strong-coverage share is 99.1%, with 5G at 38.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NN18 0AH	North Northamptonshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.1% · 5G 38.9% 4G strong-coverage share is 99.1%, with 5G at 38.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NN18 0AJ	North Northamptonshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.1% · 5G 38.9% 4G strong-coverage share is 99.1%, with 5G at 38.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NN18 0AL	North Northamptonshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.1% · 5G 38.9% 4G strong-coverage share is 99.1%, with 5G at 38.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NN18 0AN	North Northamptonshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.1% · 5G 38.9% 4G strong-coverage share is 99.1%, with 5G at 38.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NN18 0AP	North Northamptonshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.1% · 5G 38.9% 4G strong-coverage share is 99.1%, with 5G at 38.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NN18 0AQ	North Northamptonshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.1% · 5G 38.9% 4G strong-coverage share is 99.1%, with 5G at 38.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NN18 0AR	North Northamptonshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.1% · 5G 38.9% 4G strong-coverage share is 99.1%, with 5G at 38.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NN18 0AS	North Northamptonshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.1% · 5G 38.9% 4G strong-coverage share is 99.1%, with 5G at 38.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NN18 0AT	North Northamptonshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.1% · 5G 38.9% 4G strong-coverage share is 99.1%, with 5G at 38.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NN18 0AU	North Northamptonshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.1% · 5G 38.9% 4G strong-coverage share is 99.1%, with 5G at 38.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NN18 0AW	North Northamptonshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.1% · 5G 38.9% 4G strong-coverage share is 99.1%, with 5G at 38.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NN18 0AX	North Northamptonshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.1% · 5G 38.9% 4G strong-coverage share is 99.1%, with 5G at 38.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NN18 0AY	North Northamptonshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.1% · 5G 38.9% 4G strong-coverage share is 99.1%, with 5G at 38.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NN18 0AZ	North Northamptonshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.1% · 5G 38.9% 4G strong-coverage share is 99.1%, with 5G at 38.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NN18 0BA	North Northamptonshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.1% · 5G 38.9% 4G strong-coverage share is 99.1%, with 5G at 38.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NN18 0BB	North Northamptonshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.1% · 5G 38.9% 4G strong-coverage share is 99.1%, with 5G at 38.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NN18 0BD	North Northamptonshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.1% · 5G 38.9% 4G strong-coverage share is 99.1%, with 5G at 38.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NN18 0BE	North Northamptonshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.1% · 5G 38.9% 4G strong-coverage share is 99.1%, with 5G at 38.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NN18 0BF	North Northamptonshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.1% · 5G 38.9% 4G strong-coverage share is 99.1%, with 5G at 38.9% in the current area-level summary.	Broadband year 2024 · Mobile year 2025
NN18 0BG	North Northamptonshire	Strong broadband coverage Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.	4G 99.1% · 5G 38.9% 4G strong-coverage share is 99.1%, with 5G at 38.9% 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.