106,420 homes and business premises in the UK cannot get indoor 4G from any of the four mobile networks, and only 90.68% can get it from all four. Those national figures hide large differences between places, so we ranked every Westminster constituency and every council on the same measures.
Below: the worst 20 on each measure, the four nations and the urban-rural gap, then a searchable table of all 650 constituencies and 361 councils. Lists that end on a tie include every place sharing the last value.
What these figures are
These are predicted coverage figures, not speed tests or signal readings. Each of the four networks, EE, O2, Three and Vodafone, models where its signal reaches, square by 100-metre square, and these figures come from those models as at 1 January 2026, published in May 2026.
A building counts as having indoor 4G from a network when that network's predicted signal outside it is strong enough, after allowing for the loss through an average wall, to give at least a 98% chance of completing a 90-second call and a 95% chance of a 2 Mbit/s download. Your own walls, insulation and floor can make it better or worse than that.
Shares are of premises, meaning homes and business addresses, so a constituency's figure counts people's front doors, not empty hillside. Road figures are shares of the 100-metre squares that contain a road; land figures are shares of all squares. Figures are published to two decimal places, so 0.00% means fewer than 1 in 20,000.
The 20 constituencies with the most premises cut off from indoor 4G
These are the Westminster constituencies with the highest share of premises that cannot get indoor 4G from any network at all. In 302 of the 650 constituencies that share is 0.00%; in 80 it is 1% or more: 59 in England, 6 in Northern Ireland, 7 in Scotland and 8 in Wales.
| # | Constituency | No indoor 4G | One network only | All four |
|---|---|---|---|---|
| 1 | South Down (NI) | 4.67% | 4.18% | 68.74% |
| 2 | Ceredigion Preseli (Wales) | 4.11% | 5.73% | 68.89% |
| 3 | Newry and Armagh (NI) | 3.87% | 4.61% | 64.87% |
| 4 | Caerfyrddin (Wales) | 3.45% | 4.60% | 74.51% |
| 5 | West Tyrone (NI) | 3.20% | 4.13% | 58.55% |
| 6 | North Cornwall (Eng) | 3.17% | 2.99% | 75.77% |
| 7 | Forest of Dean (Eng) | 2.96% | 4.25% | 67.46% |
| 8 | Waveney Valley (Eng) | 2.89% | 6.99% | 54.36% |
| 9 | North Norfolk (Eng) | 2.80% | 4.43% | 65.52% |
| 10 | North Devon (Eng) | 2.75% | 3.99% | 74.72% |
| 11 | Montgomeryshire and Glyndwr (Wales) | 2.70% | 3.51% | 75.31% |
| 12 | St Ives (Eng) | 2.55% | 3.94% | 69.92% |
| 13 | Central Devon (Eng) | 2.49% | 4.32% | 72.27% |
| 14 | South Devon (Eng) | 2.41% | 3.56% | 75.75% |
| =15 | Derbyshire Dales (Eng) | 2.34% | 3.29% | 74.52% |
| =15 | Fermanagh and South Tyrone (NI) | 2.34% | 3.67% | 62.64% |
| 17 | Torridge and Tavistock (Eng) | 2.31% | 5.42% | 68.97% |
| 18 | Westmorland and Lonsdale (Eng) | 2.28% | 3.52% | 74.99% |
| 19 | Mid Ulster (NI) | 2.12% | 6.16% | 49.47% |
| 20 | South Shropshire (Eng) | 2.10% | 3.99% | 73.29% |
The 20 councils with the most premises cut off from indoor 4G
The same measure for the UK's 361 local and unitary councils. 130 of them round to 0.00%; 49 are at 1% or more. A council with fewer premises can reach the top of this list with a small number of homes, so the premises count is in the downloadable table.
| # | Council | No indoor 4G | One network only | All four |
|---|---|---|---|---|
| 1 | Isles of Scilly (Eng) | 6.19% | 6.60% | 0.00% |
| 2 | Newry, Mourne and Down (NI) | 4.46% | 4.78% | 66.80% |
| 3 | Ceredigion (Wales) | 4.31% | 5.13% | 72.19% |
| 4 | West Devon (Eng) | 3.56% | 7.88% | 72.21% |
| 5 | Powys (Wales) | 3.18% | 3.31% | 75.43% |
| 6 | Forest of Dean (Eng) | 3.06% | 4.23% | 68.26% |
| 7 | North Norfolk (Eng) | 2.87% | 4.38% | 65.53% |
| 8 | South Hams (Eng) | 2.81% | 4.50% | 74.81% |
| 9 | North Devon (Eng) | 2.75% | 3.99% | 74.72% |
| 10 | Derbyshire Dales (Eng) | 2.59% | 3.30% | 77.38% |
| 11 | Mid Ulster (NI) | 2.49% | 5.36% | 54.32% |
| 12 | Uttlesford (Eng) | 2.26% | 2.87% | 73.13% |
| 13 | Mid Devon (Eng) | 2.13% | 3.65% | 72.88% |
| 14 | Fermanagh and Omagh (NI) | 2.05% | 3.78% | 56.96% |
| =15 | Na h-Eileanan Siar (Scot) | 1.96% | 4.05% | 68.78% |
| =15 | South Norfolk (Eng) | 1.96% | 5.27% | 70.00% |
| 17 | Pembrokeshire (Wales) | 1.94% | 3.16% | 76.84% |
| 18 | Monmouthshire (Wales) | 1.93% | 2.60% | 83.00% |
| 19 | Carmarthenshire (Wales) | 1.91% | 2.99% | 80.30% |
| 20 | Cornwall (Eng) | 1.80% | 2.32% | 80.05% |
Where there is only one network to choose
A home that gets indoor 4G from just one network has no real choice of provider: switching to a cheaper deal on another network means losing signal indoors. These constituencies have the highest share of premises with indoor 4G from exactly one network.
| # | Constituency | One network only | No indoor 4G | All four |
|---|---|---|---|---|
| 1 | Waveney Valley (Eng) | 6.99% | 2.89% | 54.36% |
| 2 | Mid Ulster (NI) | 6.16% | 2.12% | 49.47% |
| 3 | Ceredigion Preseli (Wales) | 5.73% | 4.11% | 68.89% |
| 4 | South Norfolk (Eng) | 5.44% | 1.14% | 72.54% |
| 5 | Torridge and Tavistock (Eng) | 5.42% | 2.31% | 68.97% |
| 6 | Orkney and Shetland (Scot) | 5.15% | 1.31% | 65.79% |
| 7 | Mid Norfolk (Eng) | 4.94% | 1.10% | 72.31% |
| 8 | Weald of Kent (Eng) | 4.83% | 1.54% | 59.42% |
| 9 | Newry and Armagh (NI) | 4.61% | 3.87% | 64.87% |
| 10 | Caerfyrddin (Wales) | 4.60% | 3.45% | 74.51% |
| 11 | North Norfolk (Eng) | 4.43% | 2.80% | 65.52% |
| 12 | Central Devon (Eng) | 4.32% | 2.49% | 72.27% |
| 13 | Forest of Dean (Eng) | 4.25% | 2.96% | 67.46% |
| 14 | South Down (NI) | 4.18% | 4.67% | 68.74% |
| 15 | Glastonbury and Somerton (Eng) | 4.15% | 1.29% | 72.79% |
| 16 | West Tyrone (NI) | 4.13% | 3.20% | 58.55% |
| 17 | Na h-Eileanan an Iar (Scot) | 4.05% | 1.96% | 68.78% |
| =18 | North Devon (Eng) | 3.99% | 2.75% | 74.72% |
| =18 | South Shropshire (Eng) | 3.99% | 2.10% | 73.29% |
| 20 | North Shropshire (Eng) | 3.95% | 1.81% | 71.70% |
Councils where only one network reaches indoors
The same measure for councils.
| # | Council | One network only | No indoor 4G | All four |
|---|---|---|---|---|
| 1 | West Devon (Eng) | 7.88% | 3.56% | 72.21% |
| 2 | Isles of Scilly (Eng) | 6.60% | 6.19% | 0.00% |
| 3 | Maldon (Eng) | 6.41% | 1.06% | 63.15% |
| 4 | Mid Suffolk (Eng) | 6.27% | 1.66% | 63.75% |
| 5 | Orkney Islands (Scot) | 5.54% | 1.57% | 73.30% |
| 6 | Mid Ulster (NI) | 5.36% | 2.49% | 54.32% |
| 7 | South Norfolk (Eng) | 5.27% | 1.96% | 70.00% |
| 8 | Ceredigion (Wales) | 5.13% | 4.31% | 72.19% |
| 9 | Newry, Mourne and Down (NI) | 4.78% | 4.46% | 66.80% |
| 10 | Shetland Islands (Scot) | 4.76% | 1.05% | 58.21% |
| 11 | South Hams (Eng) | 4.50% | 2.81% | 74.81% |
| 12 | North Norfolk (Eng) | 4.38% | 2.87% | 65.53% |
| 13 | Forest of Dean (Eng) | 4.23% | 3.06% | 68.26% |
| 14 | North Warwickshire (Eng) | 4.15% | 0.63% | 76.91% |
| 15 | Torridge (Eng) | 4.08% | 1.63% | 68.71% |
| 16 | Na h-Eileanan Siar (Scot) | 4.05% | 1.96% | 68.78% |
| 17 | North Devon (Eng) | 3.99% | 2.75% | 74.72% |
| 18 | Breckland (Eng) | 3.93% | 0.91% | 73.50% |
| =19 | Fermanagh and Omagh (NI) | 3.78% | 2.05% | 56.96% |
| =19 | Harborough (Eng) | 3.78% | 0.99% | 75.84% |
Where all four networks reach the fewest homes
Across the UK, 90.68% of premises can get indoor 4G from every network. In 63 constituencies fewer than three in four can. These are the 20 lowest; the councils are in the full table below.
| # | Constituency | All four | No indoor 4G | One network only |
|---|---|---|---|---|
| 1 | Mid Ulster (NI) | 49.47% | 2.12% | 6.16% |
| 2 | Waveney Valley (Eng) | 54.36% | 2.89% | 6.99% |
| 3 | West Tyrone (NI) | 58.55% | 3.20% | 4.13% |
| 4 | Weald of Kent (Eng) | 59.42% | 1.54% | 4.83% |
| 5 | Broadland and Fakenham (Eng) | 59.76% | 1.87% | 3.24% |
| 6 | Witney (Eng) | 61.61% | 0.57% | 1.49% |
| 7 | Mid Buckinghamshire (Eng) | 61.98% | 0.88% | 2.89% |
| 8 | Fermanagh and South Tyrone (NI) | 62.64% | 2.34% | 3.67% |
| 9 | Wells and Mendip Hills (Eng) | 63.48% | 1.10% | 3.29% |
| 10 | Newry and Armagh (NI) | 64.87% | 3.87% | 4.61% |
| 11 | North Norfolk (Eng) | 65.52% | 2.80% | 4.43% |
| 12 | Orkney and Shetland (Scot) | 65.79% | 1.31% | 5.15% |
| 13 | Gainsborough (Eng) | 66.43% | 1.31% | 3.65% |
| 14 | Beverley and Holderness (Eng) | 67.11% | 0.80% | 2.89% |
| 15 | Forest of Dean (Eng) | 67.46% | 2.96% | 4.25% |
| 16 | South Down (NI) | 68.74% | 4.67% | 4.18% |
| 17 | Na h-Eileanan an Iar (Scot) | 68.78% | 1.96% | 4.05% |
| 18 | Ceredigion Preseli (Wales) | 68.89% | 4.11% | 5.73% |
| 19 | Torridge and Tavistock (Eng) | 68.97% | 2.31% | 5.42% |
| 20 | Sleaford and North Hykeham (Eng) | 69.15% | 0.51% | 2.74% |
In the car: A and B roads with no 4G
Share of A and B road, in 100-metre stretches, where a phone inside a car is predicted to get no 4G from any network. The last column is the share where all four networks reach the car.
| # | Constituency | No in-car 4G | All four |
|---|---|---|---|
| 1 | South Down (NI) | 9.55% | 49.91% |
| 2 | High Peak (Eng) | 8.68% | 70.58% |
| 3 | Dwyfor Meirionnydd (Wales) | 8.52% | 54.47% |
| 4 | Bishop Auckland (Eng) | 7.32% | 73.17% |
| 5 | West Tyrone (NI) | 7.30% | 47.09% |
| 6 | Monmouthshire (Wales) | 7.06% | 65.09% |
| 7 | Ceredigion Preseli (Wales) | 6.21% | 59.09% |
| 8 | Montgomeryshire and Glyndwr (Wales) | 6.10% | 57.33% |
| 9 | Newry and Armagh (NI) | 5.97% | 50.54% |
| 10 | Ayr, Carrick and Cumnock (Scot) | 5.51% | 67.83% |
| 11 | New Forest East (Eng) | 5.30% | 59.80% |
| 12 | Bangor Aberconwy (Wales) | 5.25% | 63.39% |
| 13 | North Devon (Eng) | 5.24% | 55.37% |
| 14 | Worthing West (Eng) | 5.06% | 87.97% |
| 15 | North Ayrshire and Arran (Scot) | 4.90% | 72.50% |
| =16 | St Ives (Eng) | 4.83% | 60.54% |
| =16 | Suffolk Coastal (Eng) | 4.83% | 57.29% |
| 18 | Penrith and Solway (Eng) | 4.80% | 62.60% |
| 19 | Skipton and Ripon (Eng) | 4.79% | 71.76% |
| 20 | Derbyshire Dales (Eng) | 4.70% | 55.24% |
Motorways: where not every network reaches the car
Almost no motorway is without in-car 4G entirely, so the useful question is how much of it every network covers. A stretch covered by only some networks is where a call can drop depending on which network you are on. Ranked among the 181 constituencies with at least 100 motorway squares (about 10 km); 327 have any motorway at all, and a few hundred metres is too little to rank fairly.
| # | Constituency | Motorway with all four | No indoor 4G |
|---|---|---|---|
| 1 | Tamworth (Eng) | 69.52% | 0.35% |
| 2 | Bolton South and Walkden (Eng) | 70.12% | 0.00% |
| 3 | Stroud (Eng) | 71.74% | 0.60% |
| 4 | Cumbernauld and Kirkintilloch (Scot) | 71.98% | 0.04% |
| 5 | Tonbridge (Eng) | 73.11% | 0.32% |
| 6 | The Wrekin (Eng) | 75.12% | 1.00% |
| 7 | Lichfield (Eng) | 76.86% | 0.43% |
| 8 | Penistone and Stocksbridge (Eng) | 77.27% | 0.27% |
| 9 | Crawley (Eng) | 77.61% | 0.00% |
| 10 | Gower (Wales) | 78.15% | 0.32% |
Land with no outdoor 4G at all
3.79% of the UK's land gets no outdoor 4G from any network. This is the measure for walkers, farms and anyone working outdoors; it is dominated by the Scottish Highlands and the uplands.
| # | Constituency | Land with no 4G | No indoor 4G |
|---|---|---|---|
| 1 | Inverness, Skye and West Ross-shire (Scot) | 21.80% | 1.12% |
| 2 | Angus and Perthshire Glens (Scot) | 15.21% | 0.99% |
| 3 | Caithness, Sutherland and Easter Ross (Scot) | 12.20% | 1.44% |
| 4 | Stirling and Strathallan (Scot) | 11.11% | 0.42% |
| 5 | Moray West, Nairn and Strathspey (Scot) | 10.16% | 0.62% |
| 6 | Argyll, Bute and South Lochaber (Scot) | 10.08% | 1.43% |
| 7 | Barrow and Furness (Eng) | 9.46% | 1.19% |
| 8 | West Aberdeenshire and Kincardine (Scot) | 8.98% | 0.70% |
| 9 | High Peak (Eng) | 8.38% | 1.20% |
| 10 | Whitehaven and Workington (Eng) | 8.25% | 0.18% |
5G: premises with no outdoor 5G from any network
5G is reported outdoors only. Across the UK 1.66% of premises have no outdoor 5G from any network at the higher-confidence level; in rural areas it is 9.25%.
| # | Constituency | No outdoor 5G | No indoor 4G |
|---|---|---|---|
| 1 | Na h-Eileanan an Iar (Scot) | 67.06% | 1.96% |
| 2 | Orkney and Shetland (Scot) | 33.97% | 1.31% |
| 3 | Argyll, Bute and South Lochaber (Scot) | 25.78% | 1.43% |
| 4 | Brecon, Radnor and Cwm Tawe (Wales) | 25.44% | 2.03% |
| 5 | Berwickshire, Roxburgh and Selkirk (Scot) | 22.85% | 0.79% |
| 6 | Torridge and Tavistock (Eng) | 22.31% | 2.31% |
| 7 | Ceredigion Preseli (Wales) | 21.63% | 4.11% |
| 8 | Clwyd East (Wales) | 21.35% | 0.92% |
| 9 | Dwyfor Meirionnydd (Wales) | 20.29% | 2.08% |
| 10 | Montgomeryshire and Glyndwr (Wales) | 20.02% | 2.70% |
The four nations compared
Northern Ireland has the highest share of premises with no indoor 4G (1.05%); England and Scotland share the lowest (0.28%). The figures below are for each nation as a whole.
| Nation | No indoor 4G | Premises | All four indoors | No indoor 4G (rural) | Land with no 4G | No outdoor 5G |
|---|---|---|---|---|---|---|
| UK | 0.33% | 106,420 | 90.68% | 2.13% | 3.79% | 1.66% |
| England | 0.28% | 76,867 | 91.20% | 2.05% | 0.97% | 1.10% |
| Northern Ireland | 1.05% | 9,414 | 78.14% | 3.48% | 1.19% | 0.98% |
| Scotland | 0.28% | 8,351 | 91.89% | 1.36% | 9.18% | 4.52% |
| Wales | 0.75% | 11,788 | 86.66% | 3.11% | 2.79% | 6.29% |
Towns and cities against the countryside
The gap is wide. 2.13% of rural premises have no indoor 4G against 0.02% in urban areas, and 63.66% of rural premises get indoor 4G from all four networks against 95.35%.
| Area | No indoor 4G | Premises | All four indoors | No outdoor 4G | Land with no 4G | No outdoor 5G |
|---|---|---|---|---|---|---|
| Urban | 0.02% | 4,497 | 95.35% | 0.00% | 0.08% | 0.35% |
| Rural | 2.13% | 101,923 | 63.66% | 0.15% | 4.27% | 9.25% |
| All UK | 0.33% | 106,420 | 90.68% | 0.02% | 3.79% | 1.66% |
Each network across the UK
Share of UK premises each network reaches with indoor 4G, overall and in rural areas, and the share of land it covers outdoors. Vodafone reaches the most premises indoors (97.39%) and O2 the fewest (95.49%); in rural areas Vodafone leads (86.66%) and O2 trails (81.97%); Three covers the most land (92.75%). A national figure says nothing about your street: check your own postcode.
| Network | Indoor 4G | Indoor 4G (rural) | Land with 4G | Outdoor 5G |
|---|---|---|---|---|
| EE | 96.81% | 85.16% | 89.97% | 94.26% |
| O2 | 95.49% | 81.97% | 89.11% | 86.15% |
| Three | 96.62% | 84.96% | 92.75% | 75.93% |
| Vodafone | 97.39% | 86.66% | 91.94% | 77.34% |