Belfast mobile coverage Vodafone strongest indoors, 100% vs EE 89% BT postcode area
No network wins Belfast on overall coverage: all four are within 2 points, but indoors Vodafone reaches 100% of sampled addresses and EE 89%.
Belfast as a whole
Ofcom Mobile Coverage data (May 2025), measured across 2,530 addresses in 108 sampled postcodes, pooled from 20 districts. Methodology.
What differs inside Belfast
Where the networks split most
- BT15 Bellevue, Cavehill, Duncairn: indoors O2, Three and Vodafone 100%, EE 23%.
- BT13 Falls, Clonard, Shankill: indoors O2 and Vodafone 100%, EE 30%.
- BT11 Ladybrook, Falls Park, Turf Lodge: indoors EE and Vodafone 100%, O2 67%.
Each network's weakest and strongest district
| Network | Indoor |
|---|---|
| EE | 23% in BT15 Bellevue; 100% in 12 districts |
| O2 | 67% in BT11 Ladybrook; 100% in 16 districts |
| Three | 83% in BT8 Carryduff; 100% in 13 districts |
Middle of the area against its edges
The 6 districts nearest the middle (BT2 Blackstaff, BT3 Duncairn, BT4 Knock, BT5 Knock, BT6 Merok, BT7 Ormeau) against the 6 furthest out (BT10 Finaghy, BT11 Ladybrook, BT17 Drumbo, BT18 Cultra, BT19 Cultra, BT20 Broadway):
- O2 indoors: 100% in the middle, 91% at the edges.
District by district
| District | Places | Indoor, low to high | Addresses |
|---|---|---|---|
| BT1 | Falls, Duncairn, New Lodge | 100% on all four | 15 small sample |
| BT2 | Blackstaff | 100% on all four | 125 |
| BT3 | Duncairn, Sydenham, Ballymacarrett | EE 95%; the rest 100% | 39 |
| BT4 | Knock, Belmont, Stormont | 100% on all four | 102 |
| BT5 | Knock, Merok, Sandown | 100% on all four | 128 |
| BT6 | Merok, Ormeau, Cregagh | Three 93%; the rest 100% | 153 |
| BT7 | Ormeau, Belvoir, Rosetta | 100% on all four | 186 |
| BT8 | Carryduff, Drumbo, Belvoir | Three 83%; O2 and Vodafone 100% | 110 |
| BT9 | Malone, Windsor, Musgrave | 100% on all four | 51 |
| BT10 | Finaghy, Dunmurry, Musgrave | 100% on all four | 162 |
| BT11 | Ladybrook, Falls Park, Turf Lodge | O2 67%; EE and Vodafone 100% | 178 |
| BT12 | Falls, Clonard, Musgrave | EE 73%; the rest 100% | 163 |
| BT13 | Falls, Clonard, Shankill | EE 30%; O2 and Vodafone 100% | 142 |
| BT14 | Clady, Ardoyne, Cavehill | EE 94%; the rest 100% | 247 |
| BT15 | Bellevue, Cavehill, Duncairn | EE 23%; the rest 100% | 111 |
| BT16 | Enler, Cultra, Scrabo | 100% on all four | 199 |
| BT17 | Drumbo, Lambeg, Finaghy | Three 84%; EE 100% | 125 |
| BT18 | Cultra, Belmont, Holywood | O2 98%; the rest 100% | 57 |
| BT19 | Cultra, Warren, Rathgael | 100% on all four | 111 |
| BT20 | Broadway, Rathgael, Rathmore | EE 83%; O2 and Vodafone 100% | 126 |
Marked small sample: under 30 addresses sampled. Listed, but left out of the comparisons above.
Guide: Best Mobile Network in Belfast (2026): UK Coverage Compared Across All Four Networks
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