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 BT81. 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
BT81 7AA DERRY CITY AND STRABANE Partial connectivity coverage
No current broadband summary row matched this postcode.
 4G 95% · 5G 17.3%
4G strong-coverage share is 95%, with 5G at 17.3% in the current area-level summary.
 Mobile year 2025
BT81 7AB DERRY CITY AND STRABANE Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 95% · 5G 17.3%
4G strong-coverage share is 95%, with 5G at 17.3% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
BT81 7AE DERRY CITY AND STRABANE Partial connectivity coverage
No current broadband summary row matched this postcode.
 4G 95% · 5G 17.3%
4G strong-coverage share is 95%, with 5G at 17.3% in the current area-level summary.
 Mobile year 2025
BT81 7AF DERRY CITY AND STRABANE Strong broadband coverage
Gigabit availability is 92.3%, with 92.3% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 95% · 5G 17.3%
4G strong-coverage share is 95%, with 5G at 17.3% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
BT81 7AG DERRY CITY AND STRABANE Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 95% · 5G 17.3%
4G strong-coverage share is 95%, with 5G at 17.3% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
BT81 7AJ DERRY CITY AND STRABANE Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 95% · 5G 17.3%
4G strong-coverage share is 95%, with 5G at 17.3% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
BT81 7AL DERRY CITY AND STRABANE Below-USO risk present
Gigabit availability is 0%, with 0% of premises at at least 300 Mbps and 100% below the Universal Service Obligation.
 4G 95% · 5G 17.3%
4G strong-coverage share is 95%, with 5G at 17.3% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
BT81 7AN DERRY CITY AND STRABANE Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 95% · 5G 17.3%
4G strong-coverage share is 95%, with 5G at 17.3% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
BT81 7AQ DERRY CITY AND STRABANE Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 95% · 5G 17.3%
4G strong-coverage share is 95%, with 5G at 17.3% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
BT81 7AR DERRY CITY AND STRABANE Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 95% · 5G 17.3%
4G strong-coverage share is 95%, with 5G at 17.3% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
BT81 7AS DERRY CITY AND STRABANE Strong broadband coverage
Gigabit availability is 87.5%, with 87.5% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 95% · 5G 17.3%
4G strong-coverage share is 95%, with 5G at 17.3% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
BT81 7AT DERRY CITY AND STRABANE Strong broadband coverage
Gigabit availability is 83.9%, with 83.9% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 95% · 5G 17.3%
4G strong-coverage share is 95%, with 5G at 17.3% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
BT81 7AW DERRY CITY AND STRABANE Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 95% · 5G 17.3%
4G strong-coverage share is 95%, with 5G at 17.3% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
BT81 7AY DERRY CITY AND STRABANE Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 95% · 5G 17.3%
4G strong-coverage share is 95%, with 5G at 17.3% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
BT81 7AZ DERRY CITY AND STRABANE Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 95% · 5G 17.3%
4G strong-coverage share is 95%, with 5G at 17.3% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
BT81 7BA DERRY CITY AND STRABANE Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 95% · 5G 17.3%
4G strong-coverage share is 95%, with 5G at 17.3% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
BT81 7BD DERRY CITY AND STRABANE Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 95% · 5G 17.3%
4G strong-coverage share is 95%, with 5G at 17.3% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
BT81 7BE DERRY CITY AND STRABANE Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 95% · 5G 17.3%
4G strong-coverage share is 95%, with 5G at 17.3% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
BT81 7BF DERRY CITY AND STRABANE Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 95% · 5G 17.3%
4G strong-coverage share is 95%, with 5G at 17.3% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
BT81 7BG DERRY CITY AND STRABANE Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 95% · 5G 17.3%
4G strong-coverage share is 95%, with 5G at 17.3% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
BT81 7BH DERRY CITY AND STRABANE Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 95% · 5G 17.3%
4G strong-coverage share is 95%, with 5G at 17.3% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
BT81 7BJ DERRY CITY AND STRABANE Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 95% · 5G 17.3%
4G strong-coverage share is 95%, with 5G at 17.3% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
BT81 7BL DERRY CITY AND STRABANE Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 95% · 5G 17.3%
4G strong-coverage share is 95%, with 5G at 17.3% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
BT81 7BN DERRY CITY AND STRABANE Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 95% · 5G 17.3%
4G strong-coverage share is 95%, with 5G at 17.3% in the current area-level summary.
 Broadband year 2024 · Mobile year 2025
BT81 7BP DERRY CITY AND STRABANE Strong broadband coverage
Gigabit availability is 100%, with 100% of premises at at least 300 Mbps and 0% below the Universal Service Obligation.
 4G 95% · 5G 17.3%
4G strong-coverage share is 95%, with 5G at 17.3% 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.