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 PO4. 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
PO4 0AA Portsmouth 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 68.6%
4G strong-coverage share is 100%, with 5G at 68.6% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
PO4 0AB Portsmouth 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 68.6%
4G strong-coverage share is 100%, with 5G at 68.6% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
PO4 0AD Portsmouth 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 68.6%
4G strong-coverage share is 100%, with 5G at 68.6% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
PO4 0AE Portsmouth 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 68.6%
4G strong-coverage share is 100%, with 5G at 68.6% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
PO4 0AF Portsmouth 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 68.6%
4G strong-coverage share is 100%, with 5G at 68.6% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
PO4 0AG Portsmouth 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 68.6%
4G strong-coverage share is 100%, with 5G at 68.6% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
PO4 0AH Portsmouth 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 68.6%
4G strong-coverage share is 100%, with 5G at 68.6% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
PO4 0AJ Portsmouth 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 68.6%
4G strong-coverage share is 100%, with 5G at 68.6% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
PO4 0AL Portsmouth 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 68.6%
4G strong-coverage share is 100%, with 5G at 68.6% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
PO4 0AQ Portsmouth 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 68.6%
4G strong-coverage share is 100%, with 5G at 68.6% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
PO4 0AR Portsmouth 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 68.6%
4G strong-coverage share is 100%, with 5G at 68.6% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
PO4 0AS Portsmouth Strong broadband coverage
Gigabit availability is 98.3%, with 98.3% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 68.6%
4G strong-coverage share is 100%, with 5G at 68.6% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
PO4 0AT Portsmouth 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 68.6%
4G strong-coverage share is 100%, with 5G at 68.6% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
PO4 0AU Portsmouth 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 68.6%
4G strong-coverage share is 100%, with 5G at 68.6% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
PO4 0AW Portsmouth 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 68.6%
4G strong-coverage share is 100%, with 5G at 68.6% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
PO4 0AX Portsmouth 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 68.6%
4G strong-coverage share is 100%, with 5G at 68.6% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
PO4 0AY Portsmouth 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 68.6%
4G strong-coverage share is 100%, with 5G at 68.6% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
PO4 0AZ Portsmouth 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 68.6%
4G strong-coverage share is 100%, with 5G at 68.6% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
PO4 0BA Portsmouth Strong broadband coverage
Gigabit availability is 97.8%, with 97.8% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 100% · 5G 68.6%
4G strong-coverage share is 100%, with 5G at 68.6% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
PO4 0BB Portsmouth 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 68.6%
4G strong-coverage share is 100%, with 5G at 68.6% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
PO4 0BD Portsmouth 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 68.6%
4G strong-coverage share is 100%, with 5G at 68.6% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
PO4 0BG Portsmouth 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 68.6%
4G strong-coverage share is 100%, with 5G at 68.6% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
PO4 0BH Portsmouth 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 68.6%
4G strong-coverage share is 100%, with 5G at 68.6% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
PO4 0BJ Portsmouth 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 68.6%
4G strong-coverage share is 100%, with 5G at 68.6% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
PO4 0BL Portsmouth 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 68.6%
4G strong-coverage share is 100%, with 5G at 68.6% 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.