Skip to content
BroadbandMart
Menu

Broadband in Cardiff

89% of homes in Cardiff can get full fibre, 6 points above the Wales figure of 83%. That ranks 7th of 22 councils in Wales and 101st of 361 across the UK.

What homes in Cardiff can get

  • Gigabit
    1,000Mbps or faster
    96%
  • Full fibre
    Fibre all the way to the home
    89%
  • Ultrafast
    300Mbps or faster
    97%
  • Fast
    100Mbps or faster
    97%
  • Superfast
    30Mbps or faster
    99%
  • No decent service
    Under 10Mbps from fixed lines or wireless
    0%
Share of homes in Cardiff able to get each speed. Source: Ofcom Connected Nations, January 2026.
172,880
homes and businesses in Ofcom's data
45%
of premises that can get full fibre have signed up to it
0
premises can't get decent broadband (10Mbps) from a fixed line or wireless network

Towns in Cardiff

TownGigabitSuperfastPostcodes
Cardiff93%98%6,957

Towns and larger villages, by number of postcodes. Figures are averages across each town's postcodes.

Council figures are Ofcom's own totals for Cardiff (January 2026). Coverage figures are for homes; the premises counts include businesses. About our data.