Mobile coverage in CF23
CF23 covers Cardiff. With Fuse Mobile you get all four UK networks (EE, Three, Vodafone, O2) through one eSIM — your phone uses whichever has the strongest signal at your location.
Check live coverage in CF23
Real Ofcom signal data per network. Edit the postcode for a more specific area.
About CF23
Cardiff
Cardiff North, Cardiff East
Wales
Why multi-network matters in CF23
Coverage in CF23 varies by network — one provider might be excellent on one street and patchy on the next. Single-network providers (giffgaff, VOXI, SMARTY, Tesco Mobile, BT Mobile) tie you to one carrier. With Fuse the eSIM holds profiles for all four UK networks and switches automatically based on signal strength.
For full UK coverage methodology see the coverage hub or read more about coverage in Cardiff.
Try Fuse in CF23
All four UK networks.
One eSIM, no contract.
From £5.99/month. Pick the strongest of four networks where you live.
No contract. Cancel anytime.