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 L21. 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
L21 0DA Sefton 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 60.2%
4G strong-coverage share is 100%, with 5G at 60.2% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
L21 0DB Sefton 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 60.2%
4G strong-coverage share is 100%, with 5G at 60.2% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
L21 0DD Sefton 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 60.2%
4G strong-coverage share is 100%, with 5G at 60.2% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
L21 0DE Sefton 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 60.2%
4G strong-coverage share is 100%, with 5G at 60.2% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
L21 0DF Sefton 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 60.2%
4G strong-coverage share is 100%, with 5G at 60.2% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
L21 0DG Sefton Strong broadband coverage
Gigabit availability is 94.1%, with 94.1% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 60.2%
4G strong-coverage share is 100%, with 5G at 60.2% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
L21 0DH Sefton 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 60.2%
4G strong-coverage share is 100%, with 5G at 60.2% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
L21 0DJ Sefton 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 60.2%
4G strong-coverage share is 100%, with 5G at 60.2% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
L21 0DN Sefton 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 60.2%
4G strong-coverage share is 100%, with 5G at 60.2% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
L21 0DP Sefton 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 60.2%
4G strong-coverage share is 100%, with 5G at 60.2% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
L21 0DQ Sefton 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 60.2%
4G strong-coverage share is 100%, with 5G at 60.2% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
L21 0DR Sefton 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 60.2%
4G strong-coverage share is 100%, with 5G at 60.2% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
L21 0DS Sefton 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 60.2%
4G strong-coverage share is 100%, with 5G at 60.2% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
L21 0DT Sefton 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 60.2%
4G strong-coverage share is 100%, with 5G at 60.2% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
L21 0DU Sefton 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 60.2%
4G strong-coverage share is 100%, with 5G at 60.2% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
L21 0DW Sefton 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 60.2%
4G strong-coverage share is 100%, with 5G at 60.2% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
L21 0DX Sefton 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 60.2%
4G strong-coverage share is 100%, with 5G at 60.2% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
L21 0DY Sefton 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 60.2%
4G strong-coverage share is 100%, with 5G at 60.2% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
L21 0DZ Sefton 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 60.2%
4G strong-coverage share is 100%, with 5G at 60.2% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
L21 0EA Sefton 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 60.2%
4G strong-coverage share is 100%, with 5G at 60.2% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
L21 0EB Sefton 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 60.2%
4G strong-coverage share is 100%, with 5G at 60.2% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
L21 0ED Sefton 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 60.2%
4G strong-coverage share is 100%, with 5G at 60.2% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
L21 0EE Sefton 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 60.2%
4G strong-coverage share is 100%, with 5G at 60.2% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
L21 0EF Sefton 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 60.2%
4G strong-coverage share is 100%, with 5G at 60.2% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
L21 0EG Sefton 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 60.2%
4G strong-coverage share is 100%, with 5G at 60.2% 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.