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 AL4. 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
AL4 0AA 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
AL4 0AB 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
AL4 0AD 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
AL4 0AE 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
AL4 0AG 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
AL4 0AH 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
AL4 0AJ 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
AL4 0AN 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
AL4 0AQ 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
AL4 0AS St Albans Broadband coverage is mixed
Gigabit availability is 0%, with 8.3% 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
AL4 0AT 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
AL4 0AW 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
AL4 0AY 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
AL4 0AZ 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
AL4 0BA 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
AL4 0BB 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
AL4 0BD 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
AL4 0BE 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
AL4 0BF 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
AL4 0BG 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
AL4 0BH 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
AL4 0BJ 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
AL4 0BL 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
AL4 0BN 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
AL4 0BP 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.