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 AL3. 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
AL3 4AA St Albans Strong broadband coverage
Gigabit availability is 95.8%, with 95.8% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 83.8%
4G strong-coverage share is 100%, with 5G at 83.8% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
AL3 4AB St Albans Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 83.8%
4G strong-coverage share is 100%, with 5G at 83.8% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
AL3 4AD St Albans Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 83.8%
4G strong-coverage share is 100%, with 5G at 83.8% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
AL3 4AE St Albans Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 83.8%
4G strong-coverage share is 100%, with 5G at 83.8% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
AL3 4AF St Albans Broadband coverage is mixed
Gigabit availability is 59.3%, with 59.3% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 83.8%
4G strong-coverage share is 100%, with 5G at 83.8% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
AL3 4AH St Albans 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 100% · 5G 83.8%
4G strong-coverage share is 100%, with 5G at 83.8% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
AL3 4AJ St Albans Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 83.8%
4G strong-coverage share is 100%, with 5G at 83.8% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
AL3 4AL St Albans 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 100% · 5G 83.8%
4G strong-coverage share is 100%, with 5G at 83.8% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
AL3 4AP St Albans Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 83.8%
4G strong-coverage share is 100%, with 5G at 83.8% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
AL3 4AR St Albans 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 100% · 5G 83.8%
4G strong-coverage share is 100%, with 5G at 83.8% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
AL3 4AS St Albans Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 83.8%
4G strong-coverage share is 100%, with 5G at 83.8% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
AL3 4AT St Albans Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 83.8%
4G strong-coverage share is 100%, with 5G at 83.8% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
AL3 4AU St Albans Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 83.8%
4G strong-coverage share is 100%, with 5G at 83.8% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
AL3 4AW St Albans Broadband coverage is mixed
Gigabit availability is 0%, with 50% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 83.8%
4G strong-coverage share is 100%, with 5G at 83.8% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
AL3 4AY St Albans Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 83.8%
4G strong-coverage share is 100%, with 5G at 83.8% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
AL3 4AZ St Albans Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 83.8%
4G strong-coverage share is 100%, with 5G at 83.8% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
AL3 4BA St Albans Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 83.8%
4G strong-coverage share is 100%, with 5G at 83.8% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
AL3 4BB St Albans Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 83.8%
4G strong-coverage share is 100%, with 5G at 83.8% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
AL3 4BD St Albans Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 83.8%
4G strong-coverage share is 100%, with 5G at 83.8% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
AL3 4BG St Albans Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 83.8%
4G strong-coverage share is 100%, with 5G at 83.8% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
AL3 4BH St Albans Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 83.8%
4G strong-coverage share is 100%, with 5G at 83.8% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
AL3 4BJ St Albans Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 83.8%
4G strong-coverage share is 100%, with 5G at 83.8% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
AL3 4BL St Albans Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 83.8%
4G strong-coverage share is 100%, with 5G at 83.8% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
AL3 4BN St Albans Strong broadband coverage
Gigabit availability is 75%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 83.8%
4G strong-coverage share is 100%, with 5G at 83.8% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
AL3 4BQ St Albans Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 83.8%
4G strong-coverage share is 100%, with 5G at 83.8% 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.